26) State Highway Maintenance Contract Proforma Manual: PSMC

Contract Number & Name SM032 App C5: 16 February 2003 SM032 Appendix C5-PSMC-APP Issue 2.doc Page App 1 Printed 28/02/05

Performance Specified Maintenance Contract Project Name Transit Contract No. Contract Number

Appendices

Table of Contents Appendices


APPENDIX 1: GENERAL REQUIREMENTS 3 1.1 Risk Allocation 3 1.2 Limit of Works 9 1.3 Land Entry Agreements 12 1.4 Other Contractors 13 1.5 Asset Information 15 1.6 Standard Specifications 16 1.7 Other Publications 17 1.8 Stockpile and Disposal Areas 19 1.9 Performance Evaluation Form 20 1.10 Gazetted Limited Access Roads 21 1.11 Known Resource Management Act Consents 22 1.12 Current Minimum Standard for Temporary Traffic Control 23 1.13 Variation Benchmarking Guidelines 24

APPENDIX 2: MANAGEMENT PERFORMANCE MEASURES 32 2.1 Meetings and Reporting 32 2.2 Quality Control – Management Plans 41 2.3 Asset Management 48 2.4 Treatment Design 52 2.5 Network Control 55

APPENDIX 3: KEY PERFORMANCE MEASURES 60 3.1 Roughness Calculations 60 3.2 Texture Calculations 61 3.3 Skid Resistance Calculations 63 3.4 Rutting Calculations 64 3.5 Surfacing Life Calculations 65 3.6 Structural Condition Calculations 68

APPENDIX 4: OPERATIONAL PERFORMANCE MEASURES 71 4.1 Definitions 71 4.2 Specific Drainage Systems 72 4.3 Anti-graffiti Coated Structures 74 4.4 Type of Vegetation Control 75 4.5 Extent of Vegetation Control 78 4.6 Officially Designated Rest Areas 83 4.7 Recurring Hazards 84

APPENDIX 5: COMPLIANCE MONITORING 85 5.1 Major Non-compliance Notice Flowchart 85

Appendices

1 General Requirements


Appendix 1: General Requirements

1.1 Risk Allocation

A number of risks may affect the performance of the Services by the Contractor. This Appendix identifies the risks that the Principal assumes. Where a risk is allocated to the Principal, the Principal shall be solely responsible for the consequences of the relevant event, except where limited by the provisions of this Appendix or as otherwise provided in the Contract Documents. To the extent that a risk is not identified in this Appendix as being assumed by the Principal, the Contractor shall have responsibility for the consequences of the occurrence of the relevant event, matter or circumstance which may impact on the performance by the Contractor of the Services or its obligations under the Contract.

Although in this Appendix or elsewhere in the Contract Documents a risk is allocated to the Principal in whole or in part, if the Contractor is insured against the consequences of such a risk or the happening of the relevant circumstance or event then, notwithstanding the provisions of this Appendix or any other provision of the Contract Documents, the proceeds of such insurance shall be first applied towards the consequences of the happening of the relevant event or circumstance and the Principal shall be responsible only to the extent that the relevant insurances do not fully cover the economic consequences of such event or circumstance. If the Contractor fails to insure the relevant risk, event or circumstance in accordance with its obligations under the Contract, the Contractor shall be solely responsible for the economic consequences which, had the Contractor fully complied with its obligations in relation to insurance, would not have fallen on the Principal.

The Principal will bear the risk of;

a) any changes in Transit New Zealand and Transfund New Zealand policy with cost implications with respect to the Services

b) procurement costs, annual charges or any other costs associated with Resource Management Act (RMA) consents, except:

• the cost of the Contractor’s compliance with existing RMA consent conditions under existing, new or renewed RMA consents

• any increase in these costs resulting from the Contractor’s non-compliance with existing RMA consent conditions.

Increase in costs associated with Resource Management Act (RMA) consents resulting from the Contractor’s non-compliance with existing RMA consent conditions includes:

• additional monitoring fees, under the affected RMA consent or any other RMA consent, incurred by the Contractor, Principal or Separate Contractors engaged by the Principal; and

Appendices



• the cost of compliance with additional conditions or variation of existing conditions, applied to existing, new or renewed RMA consents, incurred by the Contractor, Principal or Separate Contractors engaged by the Principal.

c) slips onto the road except that the Contractor bears the risk of the first <<300>> cubic metres, truck measure, of cut to waste material required to reshape and reinstate the road corridor profile to its pre-existing standard following any single slip event. The Management Board shall determine, on a case by case basis, what is a reasonable definition of a “single slip event”. The following suggested definitions of a “single slip event” are given as guidance:

• one or more slips that can be managed within a single implementation of traffic control

• one or more slips that occur at the same site within a 24 hour period

The percentage of the cost of traffic control for which the Principal bears the risk shall be equal to the percentage of the volume of the slip for which the Principal bears the risk.

The Contractor’s risk is limited to the first <<300>> cubic metres of cut to waste material. The equivalent value of this risk may not be applied to any subsequent preventive maintenance.

d) road slumping settlement/slumping/dropout/washout of any part of the formation and pavement between the edge lines, except that the Contractor bears the risk of;

• the first <<300>>mm of gradual vertical subsidence or horizontal movement at each and every such site in any calendar year

• the first <<150>>mm of vertical subsidence or horizontal movement at each and every such site in any single event

e) bridge and culvert washouts providing the relevant Operational Performance Measures have been met by the Contractor

f) the marginal impacts due to the amount by which the cumulative total volume of actual HCVs from Year (1) to Year (n) (i.e. area under the growth curve) exceeds the cumulative total volume of HCVs calculated as follows, on any of the four sub-networks defined in Appendix 1.2:

ΣHCVn = (HCV1 + 3650) x ∑=

−n

i

i

2

)1(05.1

Appendices



where:

ΣHCVn = the cumulative total volume of HCVs to Year n

n = the year of the Contract to which the HCVn is being calculated, being a value from 2 to 10

HCV1 = the number of HCVs in Year 1

For the purposes of this risk allocation:

• Year (1) shall be Year

• the actual number of HCVs in a sub-network shall be calculated as a length weighted mean over the whole sub-network as follows:

HCVm =

∑

∑

=

=j

ii

j

iii

l

lx

1

1

where:

HCVm = the number of HCVs in sub-network m

m = the number of the sub-network for which HCVm is being determined, being a value from 1 to 4

li = length of a section of the sub-network where traffic volumes are consistent and represented by data from a count site

xi = number of HCVs from the count site within or relevant to length li

j = total number of lengths, li, which summed together equal the total length of the sub-network

• HCV shall include MCV, HCV-I and HCV-II as defined in Transfund New Zealand’s Project Evaluation Manual

• the HCV volume in any calendar year shall be the total calculated from count data obtained from existing Transit New Zealand count stations. The basis of calculation shall be agreed by the Management Board for the calculation performed in Year (1) and thereafter shall not be changed

Appendices



• if the Contractor considers the count data to be inadequate then the Contractor may, at the Contractor’s own cost, undertake any additional counts required.

• there shall be no offsetting of impacts of excessive growth in one sub-network against a lesser growth in another sub-network

• the Superintendent may estimate a value based on historical information if the percentage heavy commercial vehicle cannot be determined from the traffic counts

g) the marginal impacts due to the amount by which the cumulative total volume of actual traffic from Year (1) to Year (n) (i.e. area under the growth curve) exceeds the cumulative total volume of traffic calculated as follows, on any of the four sub-networks defined in Appendix 1.2:

ΣAADTn = 365 x AADT1 x ∑=

−n

i

i

2

)1(05.1

where:

ΣAADTn = the cumulative total traffic volume to Year n

n = the year of the Contract to which the Cumulative Total Traffic Volume is being calculated, being a value from 2 to 10

AADT1 = the Annual Average Daily Traffic in Year 1

The application of this risk allocation shall be as described for sub-clause f) above and the following:

• the impact of increased minimum temporary traffic control requirements resulting from traffic growth are specifically excluded

h) increases in heavy commercial vehicle axle loading legal limits

i) increases in heavy commercial vehicle gross loading legal limits beyond 5% above legal limits current at the date of closing of tenders

j) all damage to the structural concrete components of bridges caused by vehicle collision as confirmed by the Principal’s bridge consultant. For the avoidance of doubt, all items of bridge side protection as defined in Appendix B of the Transit New Zealand Bridge Manual are considered to be non-structural components.

k) provision of traffic control, diversion or detours to the extent that the event causing the traffic control, diversion or detour is the Principal’s risk, unless specifically stated otherwise

Appendices



l) deterioration to assets beyond the Limit of Works resulting from any traffic diversion or detour:

• to the extent that the event causing the traffic diversion or detour is the Principal’s risk; or

• where the traffic diversion or detour is instructed or implemented by the New Zealand Police,

provided that the Contractor diligently completes works to allow the highway to be reopened to traffic

m) in an earthquake or fire event, the cost of Emergency Reinstatement works (defined as Work Category 30 in the Transfund New Zealand Programme and Funding Manual) in excess of $<<20,000>> where the cost of the Emergency Reinstatement works;

• would not otherwise have been undertaken as routine maintenance activities under the Contract;

• are not covered by sub-clause c), d) or e) above; and

• are clearly a consequence of the earthquake or fire event.

An earthquake or fire event is defined as any series of earthquakes or fires, that first occurs in any seven day period.

For the avoidance of doubt, in the event of earthquake or fire the Contractor shall be responsible for all Emergency Reinstatement costs up to the $<<20,000>> risk cap. Works associated with Emergency Reinstatement costs in excess of $<<20,000>> shall be treated as Additional Works in accordance with Maintenance Specification, Clause 1.9.

n) in a flood event, the cost of additional maintenance works in excess of $<<100,000>> where the additional maintenance works;


• are not covered by sub-clause c), d), e) or m) above; and

• are clearly a consequence of the flood event.

A flood event is defined as the complete water inundation (not rain alone) of one or more parts of the road pavement for more than 24 hours, that first occurs in any seven day period.

Appendices



For the avoidance of doubt, in the event of complete water inundation the Contractor shall be responsible for all additional maintenance costs up to the $<<100,000>> risk cap. Works associated with Emergency Reinstatement costs in excess of $<<100,000>> shall be treated as Additional Works in accordance with Maintenance Specification, Clause 1.9.

o) any changes to or repeal of the Injury Prevention, Rehabilitation and Compensation Act 2001 where this results in the right to sue for personal injury by accident

p) in a wind storm event, the cost of Emergency Reinstatement works (defined as Work Category 30 in the Transfund New Zealand Programme and Funding Manual) in excess of $<<50,000>> where the cost of the Emergency Reinstatement works;


• are not covered by sub-clause c), d), e), m) or n) above; and

• are clearly a consequence of the wind storm event.

A wind storm event is defined as any series of winds that first occurs in any five day period.

For the avoidance of doubt, in the event of a wind storm the Contractor shall be responsible for all Emergency Reinstatement costs up to the $<<50,000>> risk cap. Works associated with Emergency Reinstatement costs in excess of $<<50,000>> shall be treated as Additional Works in accordance with Maintenance Specification, Clause 1.9.

q) the costs incurred by the Contractor in performing the Services resulting from any changes to existing laws or introduction of new laws that:

• are not provided for elsewhere in the Contract; and

• are not taken into account in the cost fluctuation adjustments; and

• exceed an aggregate sum during the term of the Contract of $<<100,000>> (in respect of which amount the Contractor shall have sole responsibility).

For the avoidance of doubt, where a change in law or introduction of a new law results in an increase in costs that flow through over time and are subsequently taken into account in a cost fluctuation adjustment, such costs incurred during any delayed period shall not be counted towards the $<<100,000>> referred to in this sub-clause.

Appendices



1.2 Limit of Works

Schedule 1.2.1: Limit of Works Location

Start End Length SH

RS RP RS RP km lane.km

Class (see

Schedule 1.2.2)

Sub Network

District and/or

City

Appendices



Schedule 1.2.2: State Highway Class Class Type/Volume

M Motorways and Expressways

U Urban State Highways

R1 ≥ 10,000 vpd

R2 4,000 to 9,999 vpd, Heavy Vehicle and Tourist Routes

R3 1,000 to 3,999 vpd

R4 0 to 999 vpd

Schedule 1.2.3: Limit of Works – Omissions Location

SH RS RP Side

Description

Appendices



Insert map defining Limit of Works and sub-networks

Appendices



1.3 Land Entry Agreements

Schedule 1.3.1: Land Entry Agreements Location

SH RS RP Side

Owners Name, Contact Number and Agreement Reference

It is the Contractor’s responsibility to arrange for any other land entry agreements for all activities under this Contract (Transit New Zealand Form PSF/6b applies)

Appendices



1.4 Other Contractors

Schedule 1.4.1: Other Contractors – Resurfacing Location

SH RS RP Length Description

Contact Person and Contact Numbers

Defects Liability Period Expires

Contact Company Phone No.

Contract Name Contract No.

Date

Note: The actual Defects Liability Period expiration date may vary, in accordance with the provisions of each specific contract, depending on the Date of Practical Completion.

Schedule 1.4.2: Other Contractors – Rehabilitation, Reconstruction and Area Wide Treatments Location

SH RS RP Length Description





Date


Appendices



Schedule 1.4.3: Other Contractors – Miscellaneous Works Location

SH Description





Date


Appendices



1.5 Asset Information

The following documents, relating to the Contract area, will be given to the Contractor prior to the commencement of the Contract. These documents are provided for information only and do not form part of the Contract:

• <<Route Data Sheets>>

• <<Highway Information Sheets>>

• <<Reference Station Locality Diagrams>>

• <<Ten Year Programme (including the Maintenance and Capital Works Programmes)>>

• <<Safety Management Strategy>>

• <<Emergency Procedures Manual>>

• <<Resource Management Act Consents>>

• <<RAMM and associated inventories>>

• <<Geotechnical Investigations>>

• <<Slip Inventory>>

• <<Bridge Descriptive Inventory>>

• <<Bridge and Roadside Structures Inspection Reports>>

• <<Crash Reduction Studies>>

• <<Strategy Studies>>

• <<Accident Records>>

• Consultant to list others

Appendices



1.6 Standard Specifications

The Contractor must comply with the following Transit New Zealand Standard Specifications:

• TNZ C9:1995 Emergency Works

• TNZ T/10:1999 Skid Resistance Deficiency Intervention and Treatment Selection

Appendices



1.7 Other Publications

Guidance Note: The Consultant is to check the following list for currency and completeness.

The following publications apply to this Contract:

• Transit New Zealand Standards and Guidelines Manual

• Transit New Zealand Annual Plan Instructions Manual

• Transit New Zealand Bridge Inspection and Maintenance Manual

• Transit New Zealand State Highway Asset Management Manual

• Transit New Zealand State Highway Control Manual

• Transit New Zealand State Highway Geometric Design Manual (Draft)

• Transit New Zealand Manual of Traffic Signs and Pavement Marking

• Transit New Zealand State Highway Database Operation Manual

• Transit New Zealand Safety Management System Manual

• Transit New Zealand Safety Audit Policy and Procedures

• Transit New Zealand Code of Practice for Temporary Traffic Management

• Transit New Zealand Cost Estimation Manual

• Transit New Zealand Planning Policy Manual

• Transit New Zealand Planning Practice Guidelines

• Transit New Zealand State Highway Professional Services Contract Pro-forma Manual

• Transit New Zealand/Ministry of Transport Accident Investigation Procedures 1991

• Transit New Zealand Highway Information Sheet Specification

• Transfund New Zealand National Roading Programme

• Transfund New Zealand Standards and Guidelines Manual

Appendices



• Transfund New Zealand Programme and Funding Manual

• Transfund New Zealand Project Evaluation Manual

• Tranzrail Road Controlling Authority Level Crossing Agreement

• New Zealand Bitumen Contractors Association (BCA) Safe Handling of Bituminous Materials

• Road Safety Manufacturers Association Standards for the Manufacture and Maintenance of Traffic Signs, Posts and Fittings

• Land Transport Safety Authority Accident Investigation Monitoring System Coding Manual

• <<Data Collection Specification>>

• Consultant to list others

Appendices



1.8 Stockpile and Disposal Areas

Schedule 1.8.1: Stockpile Sites Location

SH RS RP Side

Name

Official Sites

Unofficial Sites

Schedule 1.8.2: Disposal Sites Location

SH RS RP Side

Name

<<The Contractor must identify all disposal sites>>

Appendices



1.9 Performance Evaluation Form

Insert Performance Evaluation Form

Appendices



1.10 Gazetted Limited Access Roads

Insert map or table defining gazetted Limited Access Roads

Appendices



1.11 Known Resource Management Act Consents

Schedule 1.11.3: Known Resource Management Act Consents SH Council Reference Location Description

Appendices



1.12 Current Minimum Standard for Temporary Traffic Control

Insert map or table defining current minimum standard for Temporary Traffic Control

Appendices



1.13 Variation Benchmarking Guidelines On Date and Date combined variation benchmarking workshops were held with the tenderers for this Contract. Prior to each session tenderers were asked to give their individual opinion on a series of hypothetical scenarios as to whether or not the matters pertaining to the scenario would constitute a variation and thus a payment outside of the lump sum. Within the workshop each scenario was deliberated and an agreement reached between the workshop participants as to the intent to be adopted to provide a consistent basis for tender. Below is a record the aligned responses from the variation benchmarking workshops having been reviewed and accepted by each of the tenderers. It is intended that the Management Board will use the Variation Benchmarking Guidelines as a guide to the basis for tender where the intent is not otherwise clearly defined within the Contract Documents. As such it will assist the Management Board in its deliberations with respect to the intent at the time of tender as to what would constitute a variation under the Contract.

Guidance Note: The following table contains suggested scenarios. The Consultant is to add to, delete from or modify the table as appropriate.

Variation? No Situation / circumstances Possible Relevant Clauses Yes No Depends

1 It is determined that river protection works will significantly reduce the likelihood of bridge damage. The per annum cost of the preventive maintenance work is;

<<<$25,000>>> MS1.7, MS4.5

Comments:

2 Several known underslips have monitoring equipment existing at the close of tenders. The per annum cost of using this equipment to monitor slip movement is;

<<<$5,000>>> MS1.7

Comments:

3 Several areas of road are identified during the term of the contract as undergoing gradual subsidence. The Superintendent has requested ongoing monitoring of the gradual subsidence to determine allocation of costs under the risk allocation at a per annum cost of;

<<<$12,000>>> MS4.2, A1.1d)

Comments:

Appendices




4 After 6 months of monitoring the sites in Example 3, one site has subsided by 320mm over the full width of one lane. The Contractor has addressed all appropriate avenues of preventive maintenance however it is expected that subsidence will continue without substantial treatment. The Superintendent Directs the Contractor to treat the site. The cost of treatment is;

<<<$120,000>>> MS4.2, A1.1d)

Comments:

5 From Example 4, the Contractor does not implement the Superintendent’s Direction and the site subsequently experiences a sudden subsidence of 200mm, following a heavy rainfall event. The cost of treatment is now;

<<<$260,000>>> MS4.2, A1.1d)

Comments:

6 The shadow of a large, healthy deciduous tree prevents the road surface from drying and reduces skid resistance. The leaves fall on the road surface further reducing skid resistance and block the side drain. The removal of the tree or other activities to meet the Performance Criteria costs;

<<<$3,700>>> MS3.5, MS4.4, MS4.16

Comments:

7 In one location the gradient of the state highway is such that water is scouring the adjacent unlined surface water channel. The cost of addressing the scour is;

<<<$20,000>>> MS4.3, MS4.4, A1.1n)

Comments:

8 Another contractor installed a large guide sign as part of a separate construction project. During the defect liability period of the separate construction project, the sign is damaged as the result of a crash. The replacement of the sign costs;

<<<$2,000>>> MS1.10, MS4.8

Comments:

9 To reduce the likelihood of road washout and water infiltration into the pavement, improvements to roadside drainage (including some outside the Limit of Works) are proposed. The per annum cost of improvements are estimated at;

<<<$15,000>>> MS1.7, MS4.4, A1.1

Comments:

Appendices




10 Throughout the duration of the Contract, the following are added to the Assets (as opposed to the replacement of existing Assets) by the Contractor and other contractors. Are the costs associated with the maintenance of these additions to the Assets a variation?

Signs MS1.7, MS1.9, MS1.10

Raised pavement markers MS1.7, MS1.9, MS1.10

Edge marker posts MS1.7, MS1.9, MS1.10

Culverts MS1.7, MS1.9, MS1.10

Sight rails MS1.7, MS1.9, MS1.10

Guard rails MS1.7, MS1.9, MS1.10

Pavement line and markings MS1.7, MS1.9, MS1.10

Carriageway lighting MS1.7, MS1.9, MS1.10

Rest areas MS1.7, MS1.9, MS1.10

Weighpits MS1.7, MS1.9, MS1.10

Comments:

11 A crash reduction study recommends changing the low pressure sodium bulbs at all rural flag lights to high pressure sodium bulbs. The total cost of complying with this recommendation is;

<<<$8,000>>> MS1.7, MS4.14

Comments:

12 Within the Limit of Works high risk slip sites have been identified. It has been proposed to treat the sites to prevent slippage through specific slope drainage, intervention and diversion of water away from the slip and protective planting where it is anticipated that this will be an effective form of preventive maintenance. The per annum cost of the treatment is;

<<<$14,000>>> MS1.7, A1.1c)

Comments:

13 It is proposed to use a gabion wall base or toe weighting to prevent a high risk underslip site from progressing to a stage where the pavement will require treatment. The cost of the preventive maintenance works is;

<<<$14,000>>> MS1.7, A1.1d)

Comments:

Appendices




14 An existing guardrail is destroyed as the result of a crash. The guardrail manufacturer requires that a 2m high berm be constructed behind the guardrail before they will certify that the new guardrail has been correctly installed. The cost of constructing this berm is;

<<<$4,600>>> MS4.12

Comments:

15 Another contractor installed a sight rail during the period between close of tenders and commencement of contract. The Superintendent requests that the Contractor move the sight rail as it has been installed too close to the edge of the state highway and presents a hazard to traffic. The cost of moving the sight rail is;

<<<$1,600>>> MS4.11

Comments:

16 For newly identified hazards within the Limit of Works the Contractor installs signage to notify motorists. The per annum cost of adding new signage is;

<<<$5,500>>> MS1.7

Comments:

17 A hazard has been identified which could be removed by the relocation of an obstruction (eg. power pole). Minor safety funding is not available. The Superintendent directs the Contractor to undertake the work to appease local lobbyists. The cost of the relocation is;

<<<$2,000>>> MS1.6

Comments:

18 A contractor engaged by a service authority installs a service beneath the state highway. Four months later, the reinstated section of highway fails. The cost of reinstating the road to its original condition is;

<<<$7,000>>> MS1.10

Comments:

19 From Example 18, the Contractor chooses not to immediately reinstate the highway as it is programmed for rehabilitation in the following year. The Superintendent directs the Contractor to immediately rectify the sub-standard section of highway as it presents a safety hazard to road users. The cost of reinstating the road surface to a safe condition is;

<<<$2,000>>> MS1.10

Comments:

Appendices




20 From Example 18, the same service authority continues to engage the same contractor to perform further works within the Limit of Works. To avoid further problems, the Contractor chooses to monitor the works more closely. The per annum cost of this increased level of surveillance is;

<<<$2,500>>> MS1.10

Comments:

21 A crash reduction study recommends changes to the pavement markings in urban areas to improve safety at intersections. The cost of complying with this recommendation is;

<<<$8,200>>> MS1.7, MS4.13

Comments:

22 The Principal requires all guard rail terminations to be upgraded to a new design as they become due for replacement. The additional per annum cost of the new termination design is;

<<<$10,000>>> MS4.12

Comments:

23 The Principal requires a new inventory (say dairy farm entrances) to be collected and maintained by the Contractor. The per annum cost of this new inventory is;

<<<$5,000>>> MS2.6

Comments:

24 Another contractor completes a realignment under a separate construction project. During the defect liability period loose chip blocks surface water channels. The cost of clearing the surface water channel is;

<<<$1,700>>> MS1.10, MS4.4

Comments:

25 The Superintendent requests the Contractor to undertake a traffic survey to investigate a potential item of additional works. Based on the results of the survey, the additional works do not proceed. The cost of the survey is;

<<<$3,800>>> MS1.9

Comments:

26 From Example 25, based on the results of the survey, the additional works do proceed. The cost of the survey is;

<<<$3,800>>> MS1.9

Appendices




Comments:

27 The Principal informs the Contractor of its required compliance with a previously unidentified resource management consent. The per annum cost of complying with the conditions of consent is;

<<<$11,000>>> MS1.11

Comments:

28 The Principal requests that the Contractor not use chemicals at all for controlling vegetation. The cost of additional resources per annum to the Contractor is;

<<<$70,000>>> MS4.7

Comments:

29 The Contractor identifies that less resurfacing than the minimum contracted is required to deliver the Performance Criteria. The Principal requests a deduction from the lump sum being the true cost of performing the resurfacing work not required. The Contractor has determined a per annum cost for loss of turnover of;

<<<$20,000>>> MS3.4, MS3.5, MS3.7

Comments:

30 The New Zealand Police request that weighpit stations be maintained to a higher standard than current practice. The per annum cost of providing this increased standard of maintenance is;

<<<$7,000>>> MS4.15

Comments:

31 In year 5, the Principal wants to reduce the lump sum payments by 10% for the remainder of the contract with a complimentary adjustment to the Performance Criteria. The Contractor assesses a per annum cost associated with reduced turnover of;

<<<$13,000>>>

Comments:

32 A land drain running beneath a farm access and parallel to the state highway (but outside the Limit of Works), blocks regularly. This causes water to back up and inundate the pavement. The per annum cost of maintaining this land drain is;

<<<$4,000>>> MS4.4

Comments:

Appendices




33 The Principal elects to not go ahead with any construction works outside the Services within the Limit of Works, as programmed to proceed at the commencement of the contract.

MS1.10

Comments:

34 The PSMC is not performing well and the Principal elects to implement 6 monthly audits, which require a reasonable resource input from the Contractor.

Comments:

35 The Management Board selects a more stringent inspection methodology to demonstrate compliance with the Operational Performance Measures than the Contractor had anticipated at the time of tender. The additional per annum cost is;

<<<$50,000>>> MS5.3

Comments:

36 The Management Board selects a less stringent inspection methodology to demonstrate compliance with the Operational Performance Measures than the Contractor had anticipated at the time of tender. The additional per annum saving is;

<<<$50,000>>> MS5.3

Comments:

37 For political reasons the Superintendent Directs the Contractor to resurface a 2km length of road which has not been programmed for resurfacing for another 3 years;

Comments:

38 The Contractor has programmed a section of road with a poor accident record to be resurfaced. The Principal requests the Contractor use a high friction wearing course. The additional cost of the resurfacing is;

<<<$25,000>>>

Comments:

39 The results of the benchmark survey for Operational Performance Measures indicate that the condition of the Assets is worse than the Contractor anticipated at the time of tendering. The additional cost to bring the Assets into compliance with the Contract Standards is;

Appendices




<<<$300,000>>> MS5.2

Comments:

40 The results of the benchmark survey for Operational Performance Measures indicate that the condition of the Assets is better than the Contractor anticipated at the time of tendering. The reduction in cost to bring the Assets into compliance with the Contract Standards is;

<<<$300,000>>> MS5.2

Comments:

41 The Contract is performing well but the Principal wants to reduce the tenure of the Contract by 6 months. The Contractor assesses that the loss in profit is;

<<<$100,000>>>

Comments:

42 The effluent from an approved stock crossing is reducing skid resistance and causing complaints from road users. The per annum cost of periodically waterblasting the affected road surface is;

<<<$10,000>>> MS3.5

Comments:

43 At tender the current Transfund New Zealand BCR is 4. During the contract this changes to 5 such that the Contractor expects to undertake less additional works than initially hoped and an overall reduction in the total construction is undertaken network wide. The estimated per annum loss in profit is;

<<<$200,000>>> A 1.1a)

Comments:

44 Another contractor has completed a major realignment within the Limit of the Works at year 2. The Management Board has agreed to an additional sum to maintain the new alignment. The Contractor has undertaken the joint inspection at the completion of the works and the site is signed off by the Contractor and Superintendent as to be included within the PSMC with no omissions identified. At year 5, which is beyond the defect liability period, the work fails and requires major rework. The cost of the rework is;

<<<$300,000>>> MS1.10

Comments:

Appendices

2 Management Performance Measures


Appendix 2: Management Performance Measures

2.1 Meetings and Reporting

2.1.1 Meetings

The Contractor shall prepare for and attend with the appropriate number and level of personnel, all meetings as necessary to effectively meet the requirements and objectives of the Contract, including but not limited to the following:

a) meetings of the Management Board;

b) annual health and safety review meetings with the Superintendent;

c) liaison meetings with other stakeholders, including service authorities, the New Zealand Police and the LTSA; and

d) regional meetings with other Region 2 network maintenance consultants and contractors

The Delivery Time for meetings is such that all meetings must be attended on time and for the full duration of the meeting.

2.1.2 Handover Reports

At the commencement of the Contract the Contractor shall produce an incoming Handover Report to visually record the location, number, extent and condition of the Assets.

The incoming Handover Report shall be in the form of a video and record all Assets including:

a) stockpile areas;

b) rest areas; and

c) all Principal owned features and structures within or under the road reserve.

The Contractor shall make available facilities for the Principal to view the video at such times as required by the Principal.

At the end of the Contract the Contractor shall produce an outgoing Handover Report in the form of, and with all deliverables, specified in Transit New Zealands’s Professional Services Contracts Proforma, Section 8 “State Highway Network Management”.

The Delivery Times for the reports are two months from Commencement Date for the incoming report and one month prior to the Termination Date for the outgoing report.

Appendices



2.1.3 Benchmarking Reports

On completion of the benchmarking surveys required under the Contract for Key Performance Measures and Operational Performance Measures, the Contractor shall produce Benchmarking Reports to:

a) record the condition of the Assets at handover;

b) present for Management Board approval the benchmarked Contract Standards for Key Performance Measures in accordance with Maintenance Specification, Clause 5.2.2;

c) present for Management Board approval the estimates of the times required to meet the Operational Performance Measures, together with supporting information, in accordance with Maintenance Specification, Clause 5.2.3.

Benchmarking surveys shall be used by the Contractor to update Asset databases where appropriate.

The Delivery Time for the Key Performance Measure Benchmarking Report shall be as specified in Maintenance Specification, Clause 3.1.

The Delivery Time for the Operational Performance Measure Benchmarking Report shall be 2 months following the time nominated in the Contractor’s Tender for completion of the benchmarking survey.

2.1.4 Compliance Reports

On completion of the surveys required under the Contract for Key Performance Measures, the Contractor shall produce Compliance Reports to record compliance of the Assets condition with the Key Performance Measures.

Compliance surveys shall be used by the Contractor to update Asset databases where appropriate.

The Delivery Time for the Compliance Reports shall be as specified in Maintenance Specification, Clause 3.1.

2.1.5 Monthly Reports

Monthly Reports must include the:

a) monthly progress claim;

b) updated programmes – including a minor safety capital works programme for the Principal’s funding consideration;

Appendices



c) updated cashflow – this must show, on a year to date basis the actual percentage of the annual contract value expended against each work category, as defined in Transfund New Zealand’s Programme and Funding Manual, and the forecast cash flow for the balance of the year;

d) PROMAN updates, both accrual and monthly forecast items, with respect to Additional Works provided by the Contractor outside of the lump sum;

e) evidence of compliance with the Performance Criteria;

f) health and safety issues;

g) preventive maintenance and minor safety works programmes;

h) safety maintenance programme and achievement report;

i) network control summary;

j) summary of complaints, requests and enquiries and their resolution;

k) evidence of compliance with other Performance Criteria;

Three copies shall be provided to the Principal.

The Delivery Time for the reports shall be 4:00pm on the 8th Business Day of the month following.

2.1.6 Board Papers

Board papers must include the:

a) minutes of the previous meeting for confirmation;

b) agenda for the meeting;

c) supporting information for the agenda items;

One copy shall be provided to each Management Board member.

The Delivery Time shall be five working days prior to Management Board meetings.

2.1.7 Accident Reports

The Contractor shall complete an Accident Report in any of the following situations, irrespective of whether the crash is reported by the New Zealand Police:

a) every worksite accident;

Appendices



b) every fatal crash;

c) any crash where there is a possibility or allegation of Contractor initiated actions being associated with the crash;

d) any crash where there is a possibility or allegation that the road condition was a major contributing factor; and

e) any serious crash for which the Superintendent requests a report.

Accident Reports required under this Management Performance Measure are in addition to the detailed accident reports required under the Contractor’s Safety Management and Intervention Plan.

Accident Reports shall include the following information:

a) date, time, location, nature and extent of accident or crash;

b) weather conditions;

c) condition of surfacing and traffic services, where applicable;

d) possible causes (including interpretation of skid resistance, where applicable);

e) damage caused to the Assets; and

f) suggested improvements.

Two copies shall be provided to the Superintendent.

The Delivery Time shall be 24 hours following the accident, or as soon as practicable thereafter.

2.1.8 Consent Monitoring/Access Control Reports

Consent Monitoring/Access Control Reports shall include at least the following information:

a) date of identification;

b) location of occurrence, including Route Position, Crossing Place No. (if licensed) and site information (Lot. No., Deposited Plan, Certificate of Title reference);

c) nature of occurrence, activity, inactivity or non-compliance;

d) contact details of site owner or agent undertaking the activity, if available;

Appendices



e) photographs identifying as fully as possible the nature of the occurrence, activity, inactivity or non-compliance;

f) damage caused to the Assets; and

g) suggested improvements or rectification, where appropriate, particularly in the case of non-compliance with consent conditions related to approved access works.

Two copies shall be provided, one to the Superintendent and one to the Principal’s Network Management Consultant.

The Delivery Time shall be within 5 days of the occurrence, activity, inactivity or non-compliance.

2.1.9 Forward Works Programmes and Annual Plans

The Contractor shall prepare and maintain the following reports for the PSMC network, including supporting information, in accordance with the requirements of the Transit New Zealand State Highway Professional Services Contracts Pro-forma Manual:

a) Forward Work Programme: Capital Works

b) Forward Work Programme: Maintenance

c) Annual Plan: Capital Works

d) Annual Plan: Maintenance

These documents shall be maintained on an annual basis with evidence to support justification.

Project Feasibility Reports are defined in Transfund New Zealand’s Programme and Funding Manual. Project Feasibility Reports prepared by the Contractor to support the Annual Plan: Capital Works must include a risk assessment addressing, among others, cultural and environmental risks.

Simplified Project Reports are economic evaluations for safety related projects performed in accordance with the Simplified Procedures specified in Transfund New Zealand’s Project Evaluation Manual. Simplified Project Reports prepared by the Contractor to support the Annual Plan: Capital Works must include a risk assessment addressing, among others, cultural and environmental risks.

The Contractor shall arrange an independent technical peer review to be completed for a minimum of 80% of all Project Feasibility Reports (i.e. regardless of project value) prepared by the Contractor to support the Annual Plan: Capital Works. Prior to an independent peer review being implemented the Contractor shall present the name and

Appendices



qualifications of their nominated independent reviewer to the Superintendent for approval, which shall not be unreasonably withheld. Where the Superintendent is not satisfied that the nominated reviewer will provide a professional and independent review the Contractor shall not use the nominated reviewer and shall nominate an alternative. All costs associated with the independent technical peer review shall be included within the lump sum.

The Delivery Times in respect of actions required by the Contractor for the Forward Works Programmes shall be such that the Principal’s Network Management Consultant can comply with the Transit New Zealand RAMM Annual Planner released annually in January. The Delivery Times in respect of actions required by the Contractor for the Annual Plans shall be such that the Principal’s Network Management Consultant can comply with the Minimum Standard Z/9 (Appendix to the Professional Services Contracts Proforma) and Transit New Zealand Annual Plan Instructions Manual.

2.1.10 Achievement Reports

The Contractor shall prepare and maintain the following reports for the PSMC network, including supporting information, in accordance with the requirements of the Transit New Zealand State Highway Professional Services Contracts Pro-forma Manual:

a) Annual Achievement Report

b) Mid-Year Achievement Report

These documents shall be maintained on an annual basis.

The Delivery Time shall be as specified by the Superintendent.

2.1.11 Asset Register Data

The Contractor shall provide four bound hard copy sets of Asset data in route position order once annually and one month prior to the Termination Date.

The format and content of data shall be appropriate to the identification, management and valuation of each asset class, and shall contain fields for Route Position and GIS location, plus extent and/or size.

Delivery Time is to be decided in consultation with the Superintendent. The annual delivery of the Asset register data by the Contractor may be waived, at the sole discretion of the Superintendent, where the Contractor maintains such data in an acceptable database or databases, continuously current and available to be electronically copied to the Superintendent at short notice.

Appendices



2.1.12 Pavement Deterioration Modelling Reporting

The Principal has implemented pavement deterioration modelling to supplement treatment intelligence currently limited to the RAMM Treatment Selection Algorithm and data analysis, as detailed in the Transit New Zealand State Highway Asset Management Manual. It is expected that the outputs of these models will form a significant input into the development of the Forward Work Programme.

To allow the Principal to maintain a comparison of pavement deterioration modelling outputs, the Transit New Zealand dTIMS model must be maintained as required for reporting in the Annual Plan.

In order to achieve the above outputs, the Contractor is required to:

• Purchase and maintain the appropriate New Zealand dTIMS software license; and

• Agree the modelling procedure with the Principal on an annual basis prior to the commencement of the annual planning cycle.

The modelling procedure is embodied in the Transit New Zealand Annual Plan Instruction Manual.

The modelling does not necessarily include any calibration work unless by Direction of the Superintendent. However, the Contractor is expected to alert the Superintendent to any calibration issues identified in operating the software.

Reporting Requirements

Input Parameters

It is important to report the input parameters used for the analysis. Comments are required on any significant changes made to the default parameters as provided in the base model.

Outputs

The outputs required by the Annual Plan refer to the outputs from the final dTIMS Run (fixed programme for treatments according to the Forward Works Programme).

Outputs from the predictive modelling should include:

• Forecasting of maintenance needs; and

• Prediction of future network condition

Note that the prediction of future network condition should also illustrate a comparison between the outcome of the dTIMS initial analysis (before the Forward Works

Appendices



Programme) and the final analysis (using treatments of the Forward Works Programme). Therefore, show maintenance effort and conditions dating back three years and combine this with the forward predictions.

Reliability Statement

A statement on the reliability and usefulness of the system shall be included.

Utilisation of Outputs

Interpretation and/or explanation must support all graphical outputs and should highlight:

• The message illustrated with the figure (e.g. the roughness prediction suggests that the current maintenance effort will maintain the current roughness across the network);

• Whether the graph supports actual expectations of the network performance (ie. is the output believable or correlates with practical experience?).

Commercial Interest

Similar to the recording of maintenance cost in RAMM, actual unit cost rates to the Contractor do not have to be used in the dTIMS modelling process. For this purpose the Contractor is allowed to use typical unit rates expected of such a network, which realistically reflect cost differences between treatment types. The Principal is only interested in global quantities of work and the impact of maintenance on the future condition.

The Delivery Time shall be as defined in the Annual Plan.

2.1.13 Traffic Management Programmes

Traffic Management Programmes include the timing and location of all planned traffic control that will restrict the free movement of traffic. A Traffic Management Programme shall be developed for each week of the Contract where such traffic control measures are planned.

One copy shall be provided to the Superintendent <<and one copy to the ATMS Operations Centre>>. The Contractor shall fax confirmation or cancellation of each traffic control event shown on the Traffic Management Programme to <<the ATMS Operations Centre>>.

The Delivery Time for the Traffic Management Programme shall be one week prior to the start of the week for which the Traffic Management Programme applies. The Delivery Time for confirmation of each traffic control event shown on the Traffic Management Programme shall be 24 hours prior to the implementation of the traffic control. The

Appendices



Delivery Time for cancellation of any traffic control event shown on the Traffic Management Programme shall be as soon as possible after the decision is made to cancel.

Appendices



2.2 Quality Control – Management Plans

2.2.1 Health and Safety Management Plan

The purpose of the Health and Safety Management Plan (HSP) is to foster a responsible attitude towards occupational health and safety and to comply with the provisions of the Health and Safety in Employment Act 1992.

Because of the nature of the Services, the Contractor may frequently be exposed to hazardous situations which could involve risk of various degrees of harm, to the contracting staff and/or the public.

Situations will arise when it is not practical to eliminate or isolate significant hazards. In these situations the hazards must be minimised by ensuring planned protection systems (eg equipment, clothing) are actually used.

The HSP shall satisfy the requirements of the Health and Safety in Employment Act 1992 and be complied with by the Contractor’s personnel and all subconsultants and subcontractors at all times.

The HSP shall, when implemented in accordance with the plan requirements:

a) ensure the systematic identification of existing and new hazards on the work site(s);

b) ensure the minimisation of significant hazards, where elimination and isolation are both impractical;

c) ensure the provision and use of appropriate protective measures;

d) include emergency procedures for dealing with accidental spillage, pollution or imminent danger;

e) ensure regular review and assessment of each hazard identified and monitor employees exposure to these hazards; and

f) ensure reporting and recording of work site safety incidents so health and safety problems can be addressed quickly and regularly. It is a requirement of this Contract that any such incident be advised promptly to the Superintendent.

The Delivery Time for the initial HSP shall be prior to the Commencement of Services (see Conditions of Contract, Clause 1.2.3); for the final plan 2 months from the Commencement Date; and for plan reviews and updates, as required by the HSP.

Appendices



2.2.2 Contract Quality Plan

The purpose of the Contract Quality Plan (CQP) is to integrate the requirements of the Contract Documents and the Contractor’s quality systems to deliver the Services.

The CQP is defined in Conditions of Contract, Clause 1.1.1.

The CQP describes those aspects of the Contractor’s quality system that will be adopted on the Contract, including how the Contractor will:

a) identify the quality requirements specific to the Contract;

b) plan the work to satisfy those requirements;

c) control (manage) the work to comply with the planning;

d) inspect/test the work to ensure compliance with the quality requirements;

e) record the results as evidence of compliance; and

f) ensure prompt action is taken to correct non-compliance.

The CQP must:

i) clearly describe the systems, procedures and methods that will be used to deliver and monitor compliance of the Services;

ii) include documented procedures for at least the following:

• CQP implementation and management

• programming including routine maintenance and annual programmes and the maintenance management strategy

• reporting

• quality standards

• compliance monitoring (see Maintenance Specification, Section 5); and

iii) be certified for the site to the ISO 9001 or 9002 Quality Standard by an independent third party certification body.

The Delivery Time for the initial CQP shall be as nominated in the Contractor’s Tender and for CQP reviews and audits, as required by the CQP.

The Delivery Time for certification shall be as nominated in the Contractor’s Tender.

Appendices



2.2.3 Emergency Procedures and Contingency Plan

The Emergency Procedures and Contingency Plan (EPCP) establishes the roles, practices and procedures during an incident response event. The EPCP must be developed by the Contractor and agreed with the Superintendent and any other stakeholders the Superintendent may identify.

The EPCP contains procedures for specific emergency events and contingency plans associated with the closure of the state highway at any point.

The EPCP shall, when implemented in accordance with the plan requirements during any emergency event, ensure the safety of the Contractor’s personnel and road users at all times.

The EPCP must include at least the following:

a) an effective communication and recording system;

b) the name, contact number and specific duties of the personnel nominated to respond to an emergency event;

c) the contact numbers of other parties required to be notified of the emergency event e.g. New Zealand Police;

d) detailed response procedures for all emergency events; and

e) all detour plans and signage required to close a State Highway at any point

The Delivery Time for the initial EPCP shall be as nominated in the Contractor’s Tender and for reviews, as required by the plan.

2.2.4 Traffic Management Plans

Traffic Management Plans (TMP) establish the practices for traffic management at work sites. All TMPs required to perform the Services must be developed by the Contractor and accepted by the Superintendent.

The objectives of the TMPs are to:

a) clearly define and document the responsibilities and chain of command for the development, implementation and management of traffic control measures and systems;

b) establish the minimum requirements for temporary traffic control;

c) establish the minimum geometric, cross section and surfacing standards for temporary works;

Appendices



d) provide appropriate transitions and enable safe and efficient traffic flow into, through and out of work sites;

e) protect the Contractor’s personnel at all times; and

f) protect the Assets and the Contractor’s resources at all times.

The TMP must at include at least the following:

i) a documented process for preparation, review and approval of the TMP;

ii) a document tracking and control system to ensure that only the latest operative copy of the TMP is in circulation;

iii) contact details for Contractor, Principal, emergency services and other stakeholders;

iv) layout diagrams, method statements etc for implementation of traffic control while undertaking each aspect of the Services (including site specific layout diagrams and method statements if the Services require traffic control measures not covered by standard codes of practice); and

v) input from the police, emergency services and other stakeholders to ensure ‘buy in’ from these parties.

The TMP must, as a minimum, comply with the Transit New Zealand Code of Practice for Temporary Traffic Management for the traffic levels advised by the Principal as they may change from time to time. Current minimum standards for temporary traffic control are shown in Appendix 1.12. From time to time it may be necessary to exceed the requirements of the code to provide for the safe passage of traffic in all site and traffic conditions. The Superintendent will assume the responsibilities and authorities of the Engineers role described in the code.

The Contractor shall also comply with the following additional requirements:

a) Road Closures

Approval of the Transit New Zealand Regional Manager or his delegate, in accordance with Section 1.8 of the Transit New Zealand State Highway Control Manual, is required in advance for restriction of traffic to single lane operations on Class M or U highways and for any road closures for reasons other than emergency situations. For purposes of this clause, closure is taken to mean a traffic delay exceeding 10 minutes in any one direction.

Restrictions on working hours may be imposed as a condition of approval.

Appendices



b) Parking and Access

The Contractor shall manage its operations so that disruption to parking in urban areas is minimised. Approval of the Superintendent is required in advance for works resulting in any loss of parking or loss of access to parking adjacent to retail shopping areas in the months of December and January.

The Contractor shall ensure that access is available to property at all times.

The Delivery Time for any TMP for short term and mobile operations shall be 5 days prior to the start of the relevant works. The Delivery Time for any TMP for long term operations shall be 10 days prior to the start of the relevant works. The Delivery Time for any TMP for operations that require public notification shall be 10 days before the advertisement is to be made.

2.2.5 Safety Management and Intervention Plan

The purpose of the Safety Management and Intervention Plan (SMP) is to pro-actively:

a) identify existing and potential safety problems;

b) eliminate, reduce or address safety problems in an appropriate manner;

c) manage information and data relating to highway safety; and

d) ensure the Principal fulfils one of its eight stated outcomes, Safety

The SMP identifies safety related problems and proposes works and actions to improve the road safety.

The SMP shall, as a minimum, meet the requirements of a Safety Management Strategy as defined in the Transit New Zealand State Highway Asset Management Manual.

The SMP must:

i) identify all safety related problems including traffic and non-traffic related problems and day or night specific problems;

ii) detail actions or projects to address problems including their estimated cost and benefits; and

iii) prioritise projects using objective criteria.

The Delivery Time for the initial SMP shall be as nominated in the Contractor’s Tender and for reviews, as required by the SMP.

Appendices



2.2.6 Environmental Protection Plan

The purpose of the Environmental Protection Plan (EPP) is to foster an environmentally responsible attitude on the part of the Contractor and its subcontractors and employees, and to ensure compliance with relevant environmental protection laws and especially the Resource Management Act 1991.

Because of the nature of the Services, the Contractor may from time to time be exposed to environmentally sensitive situations which could involve contamination of air, soil, and/or water systems. Situations will arise when there is a need to use appropriate environmental protection measures. In these cases, the provisions of the Resource Management Act 1991 and other similar Acts or Regulations must be strictly observed. The Contractor needs to be aware of environmental laws and regulations and to understand the requirements therein.

In undertaking work that involves environmental risks, emphasis should be on the fundamentals such as how to avoid offences of:

a) air and water pollution (by screening, filtering, channelling and washing at approved sites);

b) unlawful hazardous waste disposal, by containment, storage and dumping by approved methods at approved sites;

c) chemical spills (by appropriate maintenance of suitable equipment); and

d) contamination (by cleaning equipment at an approved site after each job).

The EPP must include at least the following:

i) all obligations with respect to environmental matters including each specific consent requirement and condition;

ii) detail systems, work practices and actions to manage environmental outcomes;

iii) the hazards to which the environment may be exposed in the process of carrying out work;

iv) activities for which permission must be obtained before undertaking any work;

v) the appropriate protective measures to be used;

vi) any standard practices for environmental risk mitigation; and

vii) any emergency procedures for dealing with accidental pollution or imminent danger.

Appendices



The EPP shall as a minimum address:

a) sediment and stormwater control;

b) noise control;

c) pest control;

d) control of application of herbicides;

e) storage of hazardous substances; and

f) refuelling of plant.

The EPP must comply in all respects with the policies and methods stated in the Transit New Zealand Planning Policy Manual.

The EPP must ensure reporting and recording of environmental incidents. It is a requirement of this Contract that any such incident be advised promptly to the Superintendent.

The Delivery Time for the initial EPP shall be prior to Commencement of Services and for reviews, as required by the EPP.

Further environmental information is available locally from:

• Ministry for the Environment

• Environmental Management Division of the local Regional Council (Pollution Hotline)

• National Poisons Information Centre - Ph (03) 474 7000 (urgent 24 hours service) or Ph (03) 479 1200 (9am-5pm week days)

Appendices



2.3 Asset Management

2.3.1 Conservancy of Transit New Zealand Datasets

The Contractor shall have read only access to the following datasets, which Transit New Zealand currently operates, either electronically or on paper, or expects to organise and commission as they qualify for funding:

a) Bridges

b) Remotely controlled signs (Remote Changeable Message, Remote Variable Message, AK Motorway Control)

c) Existing and Planned RMA consents

d) Iwi / Hapu agreements, MOUs

e) Consultant to list any others

Although the Contractor is not expected to maintain the above datasets, updates resulting from the Services shall be provided on CD ROM, as necessary.

The Contractor shall maintain the following datasets, which Transit New Zealand currently operates, either electronically or on paper, or expects to organise and commission as they qualify for funding:

a) RAMM (supporting dTIMS and NOMAD)

b) Slip Inventory

c) Slip Monitoring Manual

d) Stormwater Structures

e) LRMS

f) Safety and Hazards registers, Route Data and Highway Information Sheets, Diagrammatic Signs Inventories, Graffiti Control and other network operations desirables (PIS register).

g) Emergency (Police, Fire and Ambulance, Regional and District Council Contacts)

h) DOC, Fish and Game, regions and sensitivities

i) Network (Tranzrail and service authorities) Services agreements

Appendices



j) Land agreements, (Water Discharge), Caveats, memoranda, memorials, shared management agreements, entry agreements

k) Existing and Planned RMA consents

l) Iwi / Hapu agreements, MOUs

m) Consultant to list any others

The above datasets shall be maintained in a condition of accuracy, currency and completeness appropriate to the use for which they are intended. The following particular criteria apply:

i) Conservancy of the RAMM database shall include all inventory and maintenance data, including assessed costs, required by the Transit New Zealand State Highway Database Operation Manual.

ii) RAMM database updates must be 100% accurate and provided on CD ROM.

The Contractor shall provide hard and/or electronic copy of inventories and asset information, in colour if applicable, to the Superintendent as reasonably requested.

The Delivery Time shall be in accordance with the Transit New Zealand RAMM Annual Planner. The Delivery Time for hard copy requested by the Superintendent shall be 1 week.

2.3.2 RAMM Validation

During Year 2 of the Contract, the Contractor shall carry out a detailed validation check on 10% of the network.

During Years 3 – 10 inclusive of the Contract, the Contractor shall carry out a detailed validation check on a different 20% of the network annually such that over a five-year period all data will have been validated.

Upon completion, of validation, the Contractor shall update the database to rectify problems identified in the validation exercise, and provide the Superintendent with 3 copies of a stand-alone report advising any problems or anomalies identified and the steps to be taken to prevent future errors.

2.3.3 Sign Inventory Audits

The Contractor shall perform an audit of all sign inventories and databases, including the Diagrammatic Signs Inventory, in Years <<4 and 9>> of the Contract. The audit must consist of:

Appendices



a) comparison of inventories and network to ensure all inventoried signs exist;

b) review of inventories to ensure all signs required to comply with current best practice exist; and

c) review of inventories to rationalise any unnecessary or obsolete signs or standards.

The Delivery Time for sign inventory audits shall be <<Date Month Year and Date Month Year>>.

2.3.4 Maintenance of dTIMS Input File

The Contractor shall maintain the dTIMS input file in accordance with the RIMMS Group New Zealand dTIMs setup and best practice current at the time and shall have access to competent dTIMS modelling staff for the duration of the Contract.

The Delivery Time is 1 February of each year of the Contract.

2.3.5 Asset / Network Management

The Contractor is required to develop credible systems to manage the Assets, with the planning period being 20 years.

The Contractor shall be able to demonstrate to the Superintendent when required:

a) the proposed maintenance strategies that will achieve the contracted Key Performance Measures

b) that maintenance interventions and treatments are being forecast with a reasonable ‘hit rate’

c) that the network condition will meet the requirements of the Contract for the term of the Contract

d) the forecast network condition for a 10 year period beyond the term of the Contract

The Delivery Time for such asset management information is two weeks following a request by the Superintendent for a report.

2.3.6 Information Technology Routine Change

Information technology associated with asset management is in a state of rapid expansion, such that the information systems may be substantially different at the end of the Contract to that which they were at the start. The Contractor shall continually maintain and improve its systems in accordance with best practice and to be compatible with Transit New Zealand systems at any time throughout the duration of the Contract. This shall

Appendices



include changes to the nature and quantity of the data gathered and the software and hardware platforms providing information from the data. Delivery Times for implementation of information technology changes shall be within 6 months of systems being operational within Transit New Zealand or within 12 months of substantial uptake of a system by the road maintenance industry in New Zealand.

Appendices



2.4 Treatment Design

A specific design and technical specification shall be produced by the Contractor prior to any maintenance activity or treatment that changes the RAMM carriageway width at Year 0 by more than 300mm on either side of the road.

‘Rehabilitation’ is defined, for the purposes of this Contract, to be any full width pavement treatment including area wide treatment. It should be noted that this definition differs from that in Section 2 of Transfund New Zealand’s Programme and Funding Manual.

The nature of rehabilitation is such that it is not possible to exhaustively describe elements of maintenance and asset improvement and therefore define the extent of the Contractor’s responsibility. However, the following defines the more common elements of rehabilitation and establishes the intent to apply to less common elements.

2.4.1 Geometric Standards

When performing a rehabilitation the Contractor’s design must comply with the requirements of the Transit New Zealand State Highway Geometric Design Manual (Draft).

Notwithstanding the above, the Contractor’s design shall include camber correction and smoothing out of longitudinal profile within the following limits as part of the Services:

a) camber and/or superelevation correction up to ±2°

b) overlay up to 200mm depth extra to the design overlay thickness to correct shape in longitudinal direction

Prior to undertaking rehabilitation works, the Contractor shall identify and seek an instruction from the Superintendent to perform the following and any other asset improvements:

a) camber correction above ±2°

b) provision of superelevation from a camber cross-section

c) overlay above 200mm depth extra to the design overlay thickness to correct shape in longitudinal direction

d) seal widening

e) flattening of shoulder, berm and side slopes.

Consequential works arising from any aspect of rehabilitation defined as part of the Services are also part of the Services. Consequential works include, but are not limited to:

Appendices



a) earthworks;

b) drain recutting;

c) raising or lowering of sight rails and guardrails;

d) culvert extensions; and

e) construction or extension of retaining walls.

The Contractor shall take care to ensure that shoulder, berm and side slopes within the clear zone are not made steeper by the rehabilitation treatment, and that the width of such slopes that can safely be traversed by errant vehicles is not reduced.

2.4.2 Construction Requirements

Rehabilitation shall not result in more than <<1000>>m of traffic lane (having been sealed prior to the rehabilitation works) remaining unsealed for a period exceeding <<15>> days at any single project site, unless specific approval has been provided by the Superintendent; such approval shall not be unreasonably withheld.

The Contractor shall ensure, through attention to design and construction methodology, that:

a) pavement works do not unravel and that detritus and loose or surplus material does not create a traffic hazard.

b) there is no flushing, bleeding, scabbing or stripping and that binder is not picked up on any tyres. There must be no accidents associated with surfacing performance

c) in urban areas, detritus and loose or surplus material shall not be tracked into adjoining properties and businesses.

All pavement markings and raised pavement markers shall be reinstated within two days of completing resurfacing or rehabilitation work and before the removal of temporary traffic control.

2.4.3 Pavement Design Life

The minimum design life of any rehabilitation carried out by the Contractor shall be 25 years, unless stipulated otherwise by the Superintendent in writing.

For short pavement repairs having a total length less than 100m, the minimum design life shall be similar to the remaining life of the adjoining pavement, where the remaining life of the adjoining pavement shall be established in accordance with guidelines set out under Appendix 2.4.4 and 2.4.5 below.

Appendices



Where a 25 year design life is required the Superintendent will require the Contractor to demonstrate a post construction residual life of 25 years in accordance Appendix 2.4.4. Other than in exceptional circumstances, should the Contractor not be able to demonstrate a post construction residual life of 25 years the Superintendent shall raise the matter with the Management Board for resolution.

2.4.4 Determination of Remaining Pavement Life

Remaining life shall be determined using a layered elastic response model or any other established pavement response model approved by the Principal. The calculated pavement response shall be used in conjunction with AUSTROADS failure criteria (with incorporation of the New Zealand supplement to the AUSTROADS design method) to determine the expected remaining life.

2.4.5 Calibration of the Remaining Life Prediction Model

Regardless of the response model and failure criteria adopted for remaining life prediction, the Contractor shall at all times ensure that the remaining life prediction is calibrated for local conditions and that it is in agreement with international norms for structural pavement design. If, in the opinion of the Principal, the predicted remaining life is consistently at variance with local experience or with established international norms for structural pavement design, the Contractor shall calibrate the remaining life prediction model to ensure that results are consistent with international norms for structural pavement design. In this regard, the reference to establish international norms shall be proven pavement structures having similar design traffic and documented in established design charts (e.g. TRRL Road Note 31 and the design charts contained in the AUSTROADS design documentation).

Appendices



2.5 Network Control

2.5.1 Assist with Applications for Activities within the Road Corridor

Applications include, but are not limited to, requests by other parties to:

a) close a state highway;

b) hold sporting, recreational or other events on the road;

c) perform works on or below the road surface;

d) declare a Limited Access Road;

e) declare a Construction Zone;

f) construct an access onto a state highway;

g) authorise a fence encroachment;

h) authorise a stock crossing; or

i) install a service.

Guidelines: The scope of the Services with respect to planning applications and resource management planning may be specific to regional policy, practice and/or conditions. The paragraph below applies to Region 2. The Consultant should insert provisions applicable to the individual contract.

The Contractor shall assist the Principal and/or its Network Management Consultant, when requested, to process (including undertaking site visits and inspections; calculation of impact fees etc) applications and prepare any necessary service and encroachment agreements and deeds of right or other additional information.

Delivery Times in respect of actions required by the Contractor shall be such that the Principal or its Network Management Consultant can comply with the following deadlines:

a) application information sent to applicant – one week from request

b) any further information requested – one week from receipt of application

c) site visit (if required) – two weeks from receipt of application

d) application (including any deed or agreement) forwarded to Superintendent – one week from receipt of further information or site visit, whichever is the later

Appendices



e) processed application forwarded to applicant – one week from receipt of processed application

f) initial inspection of any completed works – two weeks from receipt of notification of completion

g) final inspection of any completed works – one month prior to the expiry of any defects liability period

2.5.2 Access Control

The Contractor shall monitor the network to pro-actively identify all:

a) newly constructed accesses to the State Highway;

b) modifications to existing accesses to the State Highway; and

c) changes in use of existing accesses to the State Highway.

The Contractor shall submit a Consent Monitoring/Access Control Report, in accordance with Appendix 2.1.8, in each case.

On completion of any authorised access construction, the Contractor shall certify compliance with the following designs, as appropriate:

• Transit New Zealand (Auckland Region) – Diagram C – Typical Rural Access, less than 30 vpd – Construction Drawings

• Transit New Zealand (Auckland Region) – Diagram D – Typical Rural Access, less than 31 - 100 vpd – Construction Drawings

The Delivery Time for certification of an authorised access shall be 2 weeks from completion of construction.

2.5.3 Consent Monitoring

The Contractor shall monitor the network (excluding areas within the limits of any separate capital works contract currently under construction) to pro-actively identify all:

a) construction activities within the Limit of Works or on sites immediately adjacent to the Limit of Works;

b) activities performed by the Contractor or other parties, within the Limit of Works or on sites immediately adjacent to the Limit of Works, that may require a Resource Management Act consent and/or a Notices of Consent issued by Transit New Zealand;

Appendices



c) actions and inactions of the Contractor or other parties, resulting in non-compliance with the conditions of any known Resource Management Act consents and Notices of Consent issued by Transit New Zealand, relating to protection of the network; and

d) actions and inactions of other parties, resulting in non-compliance with the possible conditions of any Resource Management Act consents relating to protection of the network, where these are not listed in the Principal’s Resource Management Act consents.

Guidelines: The scope of the Services with respect to planning applications and resource management planning may specific to regional policy, practice and/or conditions. The paragraph below applies to Region 2. The Consultant should insert provisions applicable to the individual contract.

The Contractor shall submit a Consent Monitoring/Access Control Report, in accordance with Appendix 2.1.8, in each case.

The Contractor shall, where requested by the Principal or its Network Management Consultant, prepare requests for additional information for Resource Management Act consent applications lodged by other parties.

On completion of any works affecting the network the Contractor shall, where applicable, certify compliance with Resource Management Act consents and Notices of Consent issued by Transit New Zealand.

The Delivery Time for requests for additional information for Resource Management Act consent applications lodged by other parties shall be such that the Principal can submit a request for additional information 10 days prior to the statutory deadline for the close of submissions.

2.5.4 Hazard Monitoring and Control

The Contractor shall identify and report all hazards that may have an adverse effect on the condition of the Assets or the safety of road users. Hazards may include, but are not limited to:

a) abandoned vehicles;

b) live animals, generally horses cows and/or cattle;

c) unauthorised works;

d) unauthorised and/or non-complying signs;

e) temporary traffic control non-compliant with current standards;

f) structures, signs or vegetation/trees which are unsafe, unstable or cause obstruction;

Appendices



g) roadside trading;

h) fences and encroachments;

i) illegal crossings and services;

j) drainage and land stability problems; or

k) land use activities and/or special events which might give rise to increased vehicle movements, heavy vehicle movements, or parking and manoeuvring problems.

Hazards within the Limit of Works posing an immediate threat to safety shall be removed by the Contractor. The Delivery Time for removal shall be in accordance with the Response Times for the Incident Response Operational Performance Measure.

All other hazards within the Limit of Works shall be removed after every reasonable attempt has been made to inform the owner and request removal. The Delivery Time shall be not less than two weeks after the first attempt to inform the owner and not more than three weeks.

Further Contract Standards and Delivery Times for specific hazards are given below:

i) Live animals roaming within the Limit of Works and posing a safety threat to road users shall be removed from the road reserve to impoundment and every reasonable attempt made to inform the owner. During impoundment the Contractor shall be responsible for the care and feeding of the animal. If unclaimed by the owner within 1 week the Contractor may dispose of the animal. Disposal may take the form of, but is not limited to, sale by auction, humane destruction or return to the owner. The Delivery Time for removal shall be in accordance with the Response Times for the Incident Response Operational Performance Measure.

ii) Abandoned vehicles within the Limit of Works and posing a safety threat to road users shall be moved to an adjacent position such that they no longer pose a safety threat. The New Zealand Police shall be informed within one week and every reasonable attempt made to identify the owner. Where the owner cannot be identified, the vehicle shall be removed within one week. Where the owner can be identified, the vehicle shall be removed not less than two weeks after the first attempt to inform the owner and not more than three weeks.

The Contractor shall report on actions taken or proposed, or actions required by the Principal, to remove the hazard or mitigate against its effects, and prevent recurrence. The Delivery Times in respect of hazard reports shall be within 10 days of the hazard occurring.

Appendices



2.5.5 Management and Coordination of Service Authority Contractors

The Contractor shall manage and coordinate service related works in accordance with the procedures contained in Clause 3.2.6 of the Transit New Zealand Professional Services Contracts Proforma Manual, “State Highway Network Management”.

The Contractor shall provide liaison and monitoring in a prompt and courteous manner in accordance with the service authority or contractor’s programme for the works. The Delivery Time for reporting to the Principal in the event of any problems with the performance of the service authority or contractor shall be 24 hours in relation to safety matters and one week in relation to any other matter.

2.5.6 Other Network Control Activities

Other network control activities include, but are not limited to:

a) providing suitably trained and experienced personnel to supervise the planned closures of state highways;

b) monitoring and reporting changes to the condition of the Assets at all crash reduction studies and road accident investigation team studies or other sites and route lengths nominated by the Superintendent; and

c) reviewing, requesting changes to (where necessary), accepting and monitoring compliance with all Traffic Management Plans for all works performed within the Limit of Works by other parties.

The Contractor shall provide supervision of planned state highway closures in a prompt and courteous manner. The Delivery Time shall be such that there is no disruption to the applicant’s timetable.

The Delivery Time for monitoring and reporting changes to the condition of the Assets shall be as specified by the Superintendent.

The Delivery Time for reviewing, requesting changes to and accepting Traffic Management Plans for short term and mobile operations shall be 3 days prior to the start of the relevant works. The Delivery Time for reviewing, requesting changes to and accepting Traffic Management Plans for long term operations shall be 5 days prior to the start of the relevant works.

Appendices

3 Key Performance Measures


Appendix 3: Key Performance Measures

3.1 Roughness Calculations

Records with the following event codes are to be excluded from the analysis:

• A (Post-Survey Added Value)

• U (Unsealed road begins/ends)

• D (Detour Route)

• X (Railway crossings)

3.1.1 Mean NAASRA

The mean roughness for each sub-network is to be calculated from the roughness results reported in 20m intervals.

The calculation is:

n

NAASRANAASRAMean

n

ii∑

== 1

where:

a) NAASRAi = NAASRA reading at 20m interval i

b) n = total number of 20m intervals with NAASRA readings

3.1.2 Percent with Roughness > Threshold

The calculation is:

100×=>nnThresholdRoughnesswithPercent d

where:

a) nd = number of 20m intervals with Mean NAASRA > threshold specified in the relevant Contract Standard

b) n = total number of 20m intervals with NAASRA readings

Appendices



3.2 Texture Calculations

Mean profile depth (MPD) readings are to be reported in 10m intervals, from the annual high speed data collection survey, as defined in ISO 13473-1:1997(E). The mean texture depth of the left hand and right hand wheel paths (LWP and RWP respectively) will be reported.

Records with the following event codes are to be excluded from the analysis:

• A (Post-Survey Added Value)

• U (Unsealed road begins/ends)

• D (Detour Route)

• X (Railway crossings)

3.2.1 Mean Texture Depth

The calculation is:

Mean Texture Depth (mm)2

11

r

MPD

l

MPDr

jj

l

ii ∑∑

== +=

where:

a) MPDi = mean profile depth (mm) in the left hand wheelpath of 10m interval i

b) MPDj = mean profile depth (mm) in the right hand wheelpath of 10m interval j

c) l = total number of 10m intervals in the left hand wheelpath with a mean profile depth reading

d) r = total number of 10m intervals in the right hand wheelpath with a mean profile depth reading

The surfacing information is sourced from the predominant surface type for the seal length i.e. excludes seal widening and minor patches.

Appendices



3.2.2 Percent with Mean Texture Depth < 0.5mm

The calculation is:

Percent with Mean Texture Depth < 0.5mm 100×++=

rlrl dd

where:

a) ld = number of 10m intervals in the left hand wheelpath with a mean profile depth reading < 0.5mm

b) rd = number of 10m intervals in the right hand wheelpath with a mean profile depth reading < 0.5mm

c) l = total number of 10m intervals in the left hand wheelpath with a mean profile depth reading

d) r = total number of 10m intervals in the right hand wheelpath with a mean profile depth reading

Appendices



3.3 Skid Resistance Calculations

Skid resistance information shall be reported in 10m intervals in terms of New Zealand Mean Summer Skid Coefficient (NZMSSC).

3.3.1 Percent with Skid Resistance < Threshold

For each Site Category (see TNZ T/10), the calculation is:

Percent with Skid Resistance < Threshold 100×=ssd

where:

a) sd = number of instances where: 0<− Tslane

b) slane 2)( rl ssNZMSSC +=

c) sl = skid resistance reading in the left hand wheelpath of a specific 10m interval

d) sr = skid resistance reading in the right hand wheelpath of a specific 10m interval

e) NZMSSC means New Zealand Mean Summer Skid Coefficient

f) T = the threshold defined in Maintenance Specification, Clause 3.5.1 as 0.45, 0.40, 0.35, 0.30 and 0.25 for Site Categories 1, 2, 3, 4 and 5 respectively

g) s = total number of slane readings

Appendices



3.4 Rutting Calculations

The rut depth of the left hand and right hand wheel paths will be reported.

3.4.1 Percent with Depth > 20mm

The calculation is:

Percent with Depth > 20mm 100×++=

rldd rl

where:

a) dl = length in left hand wheelpath with rut depth > 20mm

b) dr = length in right hand wheelpath with rut depth > 20mm

c) l = total length of left hand wheelpath

d) r = total length of right hand wheelpath

Appendices



3.5 Surfacing Life Calculations

The information is reported in years. All surfacing types shall be sourced from the major surfacing type in the RAMM database.

3.5.1 Surfacing Life Index

The calculation is:

Surfacing Life Index ∑

∑

=

=

×= s

ii

s

iii

A

LA

1

1

)(

where:

a) Ai = area of surfacing length i

b) s = total number of surfacing lengths

c) 365

iii

SDL −=

d) Di = Design Life of surfacing length i, as specified in Table 3.5.1 (reproduced from RAMM seal life values)

e) Si = number of days between the surfacing date of surfacing length i and 31 March in the current year of assessment

Guidelines: The Values in Table 3.5.1 should be confirmed with the Transit New Zealand Asset Systems Engineer.

Table 3.5.1: Design Life Pavement Use (as defined in RAMM) Surfacing Type Grade

1 2 3 4 5 6 7

Texturising Seal 6 3 3 2 1 1 1 1



Void Fill Seal 6 6 5 4 3 2 1 1

Void Fill Seal 5 8 7 6 5 4 3 2

Void Fill Seal 4 12 10 8 7 6 5 4

Void Fill Seal 3 14 12 10 9 8 7 6

Appendices




1 2 3 4 5 6 7

First Coat Seal: Single Coat 6 1 1 1 1 1 1 1





First Coat Seal: Two Coat 4/6 4 4 3 2 2 1 1



Second Coat Seal: Single Coat 6 6 5 4 3 2 1 1





Second Coat Seal: Two Coat 4/6 14 12 10 9 8 6 4



Reseals: Single Coat 6 6 5 4 3 2 1 1





Reseals: Two Coat 4/6 14 12 10 9 8 6 4

Reseals: Two Coat 3/5 16 14 12 11 10 8 6

Reseals: Two Coat 2/4 18 16 14 13 12 10 9

Asphaltic Mixes: Thin Asphaltic Concrete - 16 15 14 13 12 11 10

Asphaltic Mixes: Open Graded Porous Asphalt - 12 11 10 9 8 7 6

Asphaltic Mixes: Open Graded Emulsion Mix - 12 11 10 9 8 7 6

Asphaltic Mixes: Stone Mastic Asphalt - 15 14 12 11 10 8 7

Appendices




1 2 3 4 5 6 7

Portland Cement Concrete - 60 60 50 50 40 40 40

Slurry Seal - 8 7 6 5 4 3 2

Prime and Seal - 7 6 5 4 3 2 1

Metal Running Course - 3 2 1 1 1 1 1

BOLIDT Polyurethane Mix - 18 16 14 12 11 10 8

Bicouche/Sandwich - 14 12 10 9 8 6 4

Interlocking concrete blocks - 50 50 50 50 50 50 50

Appendices



3.6 Structural Condition Calculations

The information is reported as a volume of overlay material in cubic metres, assuming a common 25 year design life for all unbound pavements within the Limit of Works.

Areas of pavement identified as containing cement stabilised layers shall be separately noted along with any areas of structural asphaltic concrete. Such areas found to exhibit isotropic moduli in excess of 1500 MPa, using internationally accepted software or any other layered elastic response model approved by the Principal, shall be regarded as bound pavements for the purposes of this calculation.

3.6.1 Analysis Software

Falling Weight Deflectometer data shall be processed using internationally accepted software or any other layered elastic response model approved by the Principal. The same layered elastic response model and strain criteria shall be used for the term of the Contract.

The following inputs are required for the analysis;

• Falling Weight Deflectometer deflections as recorded during the survey

• Falling Weight Deflectometer stress on 300 mm loading plate (MPa) as recorded during the survey

• N = Number of Equivalent Standard Axles (ESA) in 25 year design life. The values for each treatment length (assuming a 50/50 lane split) shall be adjusted for actual traffic growth, up to a maximum of the risk for traffic growth allocated to the Contractor determined in accordance with Appendix 1.1.

• S = Seasonal adjustment factor for deflections as specified below

• Layer thicknesses. The layer information is to be used throughout the term of the Contract except where digouts, granular overlays or other structural treatments are undertaken during the Contract period, in which case the pavement thickness shall be adjusted accordingly by as-built layering.

3.6.2 Structural Condition Calculation

Using the software package the resilient moduli of the pavement layers and the subgrade shall be assessed from back analysis of the Falling Weight Deflectometer data.

For the purposes of the analysis it shall be assumed that all surfacings are chip-seal.

An overlay thickness for bound pavements shall be determined using the maximum horizontal tensile strain criterion given in the Transit New Zealand Supplement (May 2000) to the Austroads Pavement Design Guide.

Appendices



All overlays shall be modeled as unbound M/4 material, with a design isotropic modulus of 330 MPa. The moduli of existing granular pavements will be assumed to be those determined at the stress level of measurement and hence unaffected by the overlay. Any additional thickness of material that may be required to restore the pavement shape shall be ignored for the purpose of this calculation.

The volume of overlay material required for each treatment length shall be calculated by multiplying the weighted average overlay depth required for each treatment length by the pavement width and length of the respective treatment length. The definition and average width of each treatment length are to be used throughout the term of the Contract and any carriageway widening completed during the term of the Contract ignored.

Total overlay volumes shall be calculated for each of the four sub-networks defined in Appendix 1.2 by summing the individual treatment length overlay volumes within each sub-network.

Overlay depths shall be calculated in such a manner that any rounding errors are unbiased (i.e. the same procedure shall be applied when assessing successive surveys). Overlay volumes shall be calculated in m3 to two decimal places with the total overlay volume for each sub-network reported to the nearest m3.

3.6.3 Exclusions

The Contractor shall note the location and as-built information of any areas of pavement rehabilitation completed using cement stabilisation to ensure re-surveys correctly identify these areas as bound pavements for purposes of this calculation.

3.6.4 Seasonal Effects

A seasonal adjustment for the subgrade condition may be required to account for changes in the subgrade moisture. The effect shall be minimised by carrying out the Falling Weight Deflectometer survey in the same mid-winter (wettest time of the year) month of each year of the Contract.

The full deflection bowl from the Falling Weight Deflectometer provides a method of determining seasonal changes within the subgrade and for separating moisture dependent subgrade changes from those due to structural deterioration (or improvement) of the subbase and basecourse. If drainage is adequately maintained and the cumulative distribution of the modular ratios of successive overlying layers remains unchanged, no change in 25 year overlay can be assumed. Otherwise where the cumulative distribution of the subgrade moduli differ in successive years multi layer elastic analyses shall be used to calculate the average subgrade modulus for each Reference Station interval for each re-survey. These shall be compared with the average moduli determined in the survey performed to identify the Contract Standard.

Appendices



The software shall be used to calculate the average subgrade modulus for each Reference Station interval for each re-survey. These shall be compared with the average moduli determined in the survey performed to identify the Contract Standard specified in Maintenance Specification, Clause 3.8.1.

If the difference is greater than ±2%, a seasonal adjustment factor shall be determined. The seasonal adjustment factor is:

S = SMx/SMo

where:

a) SMo = average subgrade modulus for each Reference Station interval in the benchmark survey performed to identify the Contract Standard.

b) SMx = average subgrade modulus for each Reference Station interval at year x re-survey.

The seasonal adjustment factor shall be applied to all Falling Weight Deflectometer deflections measured in the year x survey in the following way:

δadjusted = δmeasured x S

where:

a) δ = deflection

The analysis shall then be repeated using the adjusted deflections.

The seasonal study shall exclude any data from test points where overlays or repairs have been effected.

Appendices

4 Operational Performance Measures


Appendix 4: Operational Performance Measures

4.1 Definitions

4.1.1 Shoves and Heaves

Shoves and heaves are defined as shown below.

4.1.2 Low Shoulder

Low shoulder is defined as a drop off of more than 25mm from the edge of seal, as shown below.

> 25mm

4.1.3 High Shoulder

High shoulder is defined as a rise of more than 50mm above the nominal shoulder line, within 1 metre from the edge of seal, as shown below.

>

Appendices



4.2 Specific Drainage Systems

Schedule 4.2.1: Specific Drainage Systems Location

SH RS RP Side

Name

Detention Ponds

Sand Filters

Notes:

1. Pesticides should not be used in association with the maintenance of stormwater systems. The contamination of water standards resulting from the use of chemicals within the treatment facility may lead to a conviction under the Resource Management Act 1991. Where herbicides are used, careful selection and application are important to avoid harm to desirable plants and animals. Applicators must be experienced and well trained in plant identification to selectively control undesirable plants while avoiding detrimental effects on desirable vegetation and possible downstream contamination.

2. A management plan that provides for periodic removal of aquatic vegetation at select locations on a rotational basis will slow the rate of accumulation of organic matter and the loss in treatment capacity. Such a management plan will prolong the useful life of the facility by maintaining light penetration and oxygenation, and decrease the frequency and costs incurred for major maintenance such as dredging. Regular removal can help control unwanted aquatic weeds and insect larvae and promote more active growth of desired plants (native sedges and grasses). Harvesting the vegetation increases the rate of assimilation of nutrients by increasing plant growth and can balance the loss of treatment associated with the reduction in plants.

Appendices



3. Fertiliser may be used to establish and maintain a healthy and vigorous cover on the banks of treatment facilities. Once ground cover is well established, normal rates of fertilisation can be lowered near stormwater ponds to avoid over-enrichment of the soil and adjacent waters. Care should be taken when mowing the grass to avoid diverting clippings into the pond, encouraging the build-up of nutrients.

4. Problem areas susceptible to chronic erosion require more intense measures for protection and establishment of permanent vegetative cover. These special considerations may include the use of sod instead of seeding. Also, higher fertilisation rates and provisions to provide temporary irrigation during dry weather conditions help ensure rapid establishment and vigorous growth.

5. Excessive petroleum hydrocarbon contamination can present severe sediment disposal problems. The source of such contamination should be found and removed. Pre-treatment practices should be used whenever practical to prevent this problem.

6. Sediments associated with stormwater treatment devices should be regarded as contaminated well beyond the levels in runoff itself. Contaminants associated with stormwater sediment include high nutrients and oxygen demanding substances, heavy metals, petroleum hydrocarbons and other volatile and semi-volatile organic compounds, pesticides and infectious organisms. Sediment should be tested to determine the level of contamination. Sediment from basins with low level of contaminants can be spread out on-site in areas of restricted access, provided proper sediment and erosion control measures are implemented and direct discharge is minimised. However, any sediment with high levels of contaminants must be disposed of off-site, either in an approved landfill for use as a landfill cover or to an approved sludge application site.

7. Sediment and erosion control measures must be implemented when undertaking maintenance and restoration activities to limit the discharge of contaminants. If the water cannot be diverted, it is advisable to stabilise the surface as quickly as possible. Erosion and subsequent sediment discharge problems can be minimised by the use of biodegradable netting (staked in place), dry organic mulch (hay or straw), geotextile matting or other suitable techniques in conjunction with seeding operations aimed at protecting the surface from erosion and promote rapid ground cover.

8. Corrective maintenance of sand in the filtration tank may involve aerating or raking the surface of the filter to expose fresh sand. Water ponding on the sand three days after a storm event is indicative of binding. Corrective maintenance in such cases may involve pumping, or otherwise draining, standing water from the facility followed by removal and disposal of contaminated, discoloured or sediment laden sand. Generally this will involve removal and replacement of the top 50 to 75mm of sand. Incorporating up to 20% potash with the sand may improve absorption of toxic substances.

Appendices



4.3 Anti-graffiti Coated Structures

Schedule 4.3.1: Anti-graffiti Coated Structures Location

SH RS RP Side

Name

Appendices



4.4 Type of Vegetation Control

Schedule 4.4.1: Vegetation Control – General Location

SH RS RP RS RP Side

Control Types

Comments

All lengths of highway in the Limit of Works except those specified in Miscellaneous Area Control – Omissions

<<1, 3, 4, 5, 6, 7>>

All traffic islands. All verges in rural areas. All verges in urban areas where there is no surfaced water channel.

Schedule 4.4.2: Vegetation Control – Rest Areas Location

SH RS RP RS RP Side

Control Types

Comments

Officially Designated Rest Areas

All rest areas specified in Appendix 4.6 <<2, 5, 6>>

Unofficial Rest Areas

Appendices



Schedule 4.4.3: Vegetation Control – Miscellaneous Areas Location

SH RS RP RS RP Side

Control Types

Comments

Stockpile Sites

All stockpile sites specified in Appendix 1.8 <<5, 6>>

Planted Areas

Weightpits

<<2, 5, 6>>

Other Areas

Appendices



Schedule 4.4.4: Vegetation Control – Omissions Location

SH RS RP RS RP Side

Description

No chemical boom spraying

All Urban areas specified in Appendix 1.2

Appendices



4.5 Extent of Vegetation Control

Appendices



Appendices



Appendices



Appendices



Appendices



4.6 Officially Designated Rest Areas

Schedule 4.6.1: Officially Designated Rest Areas Location

SH RS RP Side

Name

Appendices



4.7 Recurring Hazards

Schedule 4.7.1: Recurring Hazards Location

SH RS RP Side Description

Hazard Inspection Frequency

Appendices

5 Compliance Monitoring


Appendix 5: Compliance Monitoring

5.1 Major Non-compliance Notice Flowchart

The Superintendent identifies a major non-compliance and

immediately notifies the Management Board

The Management Board hears and considers circumstances surrounding the major non-

compliance at next meeting (no later than 1 month after

Superintendent notification)

Do the Management Board require

more information?

The Superintendent provides requested information to the

Management Board as soon as is practical

The Management Board hears and considers opinions at their next meeting (no later than 2 weeks after the provision of

requested information)

Do the Management Board

reach agreement within 1 week of the hearing?

Superintendent issues major non-compliance notice

Superintendent does not issue major non-compliance notice

Do the Management

Board agree the measurement

is valid?


agree there are extenuating

circumstances?


require the Contractor to act within a set

timeframe?

The Management Board sets

Contractor actions and timeframes and considers other implications such as the need to review any Performance Criteria

Does the Contractor meet the required actions and

timeframes?

No

Yes

Yes

Yes

Yes

Yes

No

No

No

No

No Yes