GIS facilitating the delivery of a Surface Water ... · GIS facilitating the delivery of a Surface Water Management Plan Brian Higgs Corporate GIS Unit Manager & ... community engagement

LANDF RM – Update on Early Action funded projects to manage local flood risk

17/01/11

1Brian Higgs and Graham Hodgson – Dudley Metropolitan Borough Council

GIS facilitating the delivery of aSurface Water Management Plan

Brian HiggsCorporate GIS Unit Manager

&

Graham HodgsonGroup Engineer – Civil Engineering

Structure of Presentation

• Describe Borough & G.I. infrastructure within Dudley MBC to give context

•• Look at how the project has already exploited the technology

• Consider how it will influence future direction

• A business view on the approach, what has been achieved and future direction


17/01/11


ContextDudley Borough covers an area of 98 sq km with a population of 310,000, considered a low risk borough from a flooding perspective. This status does not excuse us from having to have robust and defensible processes in place

The Council’s G.I. Infrastructure:

Creators = 350+ seatsConsumers = over 4,500 staff have used the Intranet GIS Site (GIS-MO)

……… 92% of all PCs on Council’s network have accessed GIS-MO……… Second only to Outlook in magnitude and diversity of user base

Changes business processes, resulting in it being seen as business-critical and as such features in Council’s Business Continuity Plan

400+ data sources including most of the Council’s key business applications are currently accessible through GIS-MO resulting in a holding of over 2 million spatial records

EXPERIAN -MOSAIC UK

M3/Northgate -Environmental

Health

ONS -Index of Multiple

Deprivation / Census Data /

OAC

GIS-MO

GVA -Corporate Asset

Management

iWorld –Housing

Management

NLIS -Land Charges

CONFIRM -Arbor / Grounds

Maintenance

Northgate -Revenues and

Benefits

Business Link Data

MAYRISE -Street Lighting

Symology -Highways

Maintenance

ASPIRE -CRM (Dudley Council Plus)

SIDEM –Parking

Management

CENTRIS -Pupil Records

Northgate -Electoral Register

ELMS2 -Community Equipment

EMS -Early Years

SWIFT -Social Service

Clients

Phone Masts(Mobile Operators Assoc)

Gas & Oil Pipelines

Bus Routes (Centro)

Water Companies (South Staffs / Severn Trent)

British Waterways

Flood Data (EA)

APAS -Planning

Applications back to 1947

Building Reg’s

TPO’s

Enforcements

Planning Policy

ExeGesIS -HBSMR


17/01/11


Why consider employing GI handling technologies?

• Explicit recommendation within DEFRA/EA advice and guidance documentation

• More importantly, it’s effective contributory role supporting the following processes can be demonstrated:

• - Asset Data Capture and Maintenance

Critical watercourses identified and captured from OS MasterMapPhase 2 to include other water features held within OS MasterMap:

- 7,837 objects- Data specification yet to be defined


17/01/11


Culverts – Also captured to OS MasterMap (where defined) and attributed as ‘Alignment based upon authoritative source’

• Where no OS spatial definition - single straight line between portals to denote existence and attributed as ‘Assumed alignment only – to be confirmed’


17/01/11


Storm Water Outfalls…


17/01/11


Watercourse Grills…


17/01/11


Invasive Species also being captured as a bonus…



• More importantly, it’s effective contributory role supporting the following processes can be demonstrated:- Asset Data Capture and Maintenance- Evidence areas of “known” flooding


17/01/11


Symology Flood Records – Category 1 (Flooding Inside Property - 477 incidents)

Street centric - some difficulty in referencing to property levelMultiple occurrences - filter out multiple reportingFlooding not recognised as explicit service line - business process review required

Symology Flood Records – Category 2 (Flooding Outside Property - 441 incidents)


17/01/11


Symology Flood Records – Category 3 (Flooding on Carriageway – 479 incidents)

Other Symology categories mapped -• Flooding of Public Open Space (8 incidents)• Unknown Flooding (223 incidents)

Additional Data - Severn Trent Water Flood Records (Storm / Foul) – 209 incidents


17/01/11


Additional Data - DMBC Flood Damage Claims (74 claimants)

2007 DEFRA funded grant (£20,000) in response to flood events

Additional Data - Extents of Actual Flooding (DMBC)

Determined from site visits and information supplied by residents


17/01/11


Additional Data - EA Susceptibility to Surface Water Flooding

Additional Data - EA 1 in 200 Year Rainfall


17/01/11


On-Line Survey through Council’s website

Newspaper Archive

Neither source has contributed much to the overall picture

Other indicators of possible flooding



• More importantly, it’s effective contributory role supporting the following processes can be demonstrated:- Asset Data Capture and Maintenance- Evidence areas of “known” flooding - Determine “Hot Spots” and associated geographies


17/01/11


Establishment of Hot Spots

Reviewed all areas of “known” flooding

Considered potential impact on the following:• People• Property (internal)• Highway• Sensitive land use

Required at least two events

Other professional judgements

• Once established need to define associated “Consideration Zone”

Flood Consideration Zones

The primary requirement is to be able to identify through the Development Control process any development or land use change which may have a negative impact on the hot spot area

Other service areas such as Emergency Planning will have access to the geography

Currently considering business rules for how to define these areas, needs to be robust as almost certainly will be challenged by developers


17/01/11



Explicit recommendation within DEFRA/EA advice and guidance documentation

More importantly, it’s effective contributory role in supporting the following processes can be demonstrated:- Asset Data Capture and Maintenance- Evidence areas of “known” flooding - Determine “Hot Spots” and associated geographies- Information informed Risk Assessment

Flood RiskNeed to consider adverse consequences for:

- Human Health including Social Deprivation and Vulnerability- Economic Activity- Heritage- The Environment


17/01/11


Recorded flood extents mapped (DMBC records)

Index of Multiple Deprivation (Lower Layer Super Output Areas)


17/01/11


• MOSAIC data – Customer insight, necessary for effective community engagement


17/01/11


Land Use to NLUD ClassificationHelps identify economic activity

LLPG - Business Premise Register


17/01/11


Historic Buildings Sites & Monuments Record (HBSMR)

Nature Conservation Enhancement ZonesAlternative views need to co-reside


17/01/11


Building Class (indicates age of structure, possibility of cellars, etc)

Key infrastructure at risk (from LLPG)


17/01/11


Bus stops and routes

GIS-MO for Emergency & Contingency Planning


17/01/11


Need to consider “marooned” properties as part of the risk assessment and evacuation planning

Potentially inundated properties

Potentially marooned properties


Explicit recommendation within DEFRA/EA advice and guidance documentation

More importantly, it’s effective contributory role in supporting the following processes can be demonstrated:- Asset Data Capture and Maintenance- Evidence areas of “known” flooding - Determine “Hot Spots” and associated geographies- Information informed Risk Assessment- Underpins open and transparent dissemination of resulting data


17/01/11


Publishing data throughG.I. Infrastructure

Single view of data ensuring appropriate level of currency and integrity

Embed within processes such as Planning Application Consultation

Geometries can be transparent – change the question

Raise awareness of topic – possible extended user community


A Business Perspective


17/01/11



• Confidently Identify and Understand where SW Flooding will occur• Identify the Probability & Consequences of SW Flooding

- (Human Health: Economic Activity: Cultural Heritage & the Environment)• Support the Principles of PPS25 • Identify Opportunities where SuDS can play a more significant role

in mitigating Flood Risk• Interactively Inform Spatial Planning, Development & Emergency

Planning• Help Target Public Engagement to raise Flood Awareness• Allow 3rd Party Access • Asset Register


Final Thought• 6 Months Since Early Action Bid Funding

Without the Expertise, Good Corporate Partnering & the Power of GIS

“How would we deliver the requirements of the Floods & Water Management Act and its

Associated Regulations as Efficiently and Effectively ?”


17/01/11


Thank you for your attention

Contact details:[email protected]@dudley.gov.uk

Documents

GIS facilitating the delivery of a Surface Water ... · GIS facilitating the delivery of a Surface Water Management Plan Brian Higgs Corporate GIS Unit Manager & ... community engagement