Crossrail Line 1Assessment of Lighting Impacts: Technical Report

Crossrail Line 1 Assessment of Lighting Impacts Technical Report Volume 2 of 2 1E0324-G0E00-00001

5

23

1

4

O

O

C

O

O

O

B

L

L

M

3

O

O

C

O

O

O

O

O

O

C

O

B

L

L

5

O

O

O

O

C

O

B

L

L

L

4

O

B

L

L

H

2

O

O

O

O

C

O

B

L

L

H

1

Receptors Location

Other

B - Baseline C - Construction O - Operation Site Activity

Criteria + Magnitude

Workplace

ResidentialC - CriticalH - High M - ModerateL - Low

Receptor Group + Sensitivity

Other

Built Environment

Ecological

Dark Area

Astronomers

Pedestrian

Vehicular

Dim

Neutral

Security

Exterior Amenity

Exterior Vehicular/Pedestrian

Exterior Emergency

Exterior Workplace

BrightPerceived Brightness+ Impact

Interior WorkplaceN - Normal Working E - Extended Daytime O - Dusk Till DawnI - Infrequent/TestingA - Dusk Till 12:30amU - Unlit

Illumination Function+ Operational Hours

Site DescriptionExisting road bridge with adjacent pedestrian footbridge.

Receptors:1. Residents of Lansdowne Avenue2. Residents of Pickfords Gardens3. Horlicks Factory4. Network Rail Facility5..Traffic on Stoke Poges Lane

Lighting Scheme

There is no artificial lighting on either of the bridge structures. Local street lighting comprises 10-12 metre high approx. columns utilising low pressure sodium (SOX) luminaires.

W19Route WindowStoke Poges Lane Bridge Site

E2Environmental ZoneSlough Station to Burnham StationLocation

Baseline Scoping

Design Proposals and Scoping Assessment Pro-formaSite Location

N/AN/AEngineering Information provided by Crossrail

N/A

Revision

N/A

Date

Relevant Parliamentary Plan Sheets

Reference Documents

Proposals Assessment

CR - Rain M - Mist O - Overcast C - ClearClimatic Conditions

W19-10 to W19-17 InclusivePhotographic Record

05.10.04DateKeith Miller and Efren CartasPersonnel

Assessment

Site DescriptionThe existing bridge and footbridge will be raised by approximately 300mm. The work will require a substantial number of weekday and weekend track possessions. Temporary worksites are identified within the Network Rail site to the north of the bridge and in a area adjacent to Salt Hill Pleasure Grounds to the south.

Lighting SchemeThe Construction Planning Report states that:“….Night time working will require additional task lighting over and above that provided by street lighting. This will be provided by local tower/tripod lighting sets with power from smaller or self-contained petrol diesel generator sets. No change in the existing level of light pollution is envisaged.”

Construction Design Proposals: Scheme description + Site Diagram

Site DescriptionThe site reverts to the baseline condition.

Lighting SchemeNo details of any permanent lighting to either bridge available at the time of daytime scoping survey 05.10.2004.

Baseline Installation Proposals: Scheme description + Site Diagram

Operation Design Proposals: Scheme description + Site Diagram

2

2

Stoke Poges Lane Bridge

5

23

1

4

5

23

1

4

Site Boundary

Crossrail Line 1Assessment of Lighting Impacts: Technical Report

Crossrail Line 1 Assessment of Lighting Impacts Technical Report Volume 2 of 2 1E0324-G0E00-00001

Scoping and Proposals Analysis Pro-forma Site Location

L

L

M

3

L

L

5

L

L

L

4

L

L

H

2

L

L

H

1

Receptors LocationCriteria + Magnitude

Workplace

ResidentialC - CriticalH - High M - ModerateL - Low

Receptor Group + Sensitivity

Other

Built Environment

Ecological

Dark Landscape

Astronomers

Pedestrian

Vehicular

OCOCOCOCOCSite Activity Compared to Baseline C - Construction O - Operation

Construction Mitigation

IAIAIAIAIAIdentify Significance ( I ) of Impact or Proceed with Analysis ( A )

P+ PARTICULARLY SIGNIFICANT POSITIVES+ SIGNIFICANT POSITIVENS NOT SIGNIFICANTS- SIGNIFICANT NEGATIVEP- PARTICULARLY SIGNIFICANT NEGATIVE

Residual Impact

Secondary Mitigation

Primary Mitigation

CCCCCCCCCCConclude Assessment ( C ) orIdentify Mitigation ( M )

Action

AAAAAIdentify Significance ( I ) of Impact orProceed with Analysis ( A )

Action

NSNSNSNSNSNSNSNSNSNSP+ PARTICULARLY SIGNIFICANT POSITIVES+ SIGNIFICANT POSITIVENS NOT SIGNIFICANTS- SIGNIFICANT NEGATIVEP- PARTICULARLY SIGNIFICANT NEGATIVE

Significance of ImpactReceptor Sensitivity

MMMMMN - NEGLIGIBLEM - MODERATE ADVERSES - SUBSTANTIAL ADVERSE

Potential ImpactDuration of Change

Action

N M N NMNMMNM

Conclude Assessment ( C ) orInstigate Detailed Assessment ( D)

Result

B - BENEFICIALN - NEGLIGIBLEM - MODERATE ADVERSES - SUBSTANTIAL ADVERSE

Magnitude of ChangeBrightness Comparison

AnalysisW19Route WindowStoke Poges Lane Bridge Site

E2Environmental ZoneSlough Station to Burnham StationLocation

Crossrail Line 1Assessment of Lighting Impacts: Technical Report

Crossrail Line 1 Assessment of Lighting Impacts Technical Report Volume 2 of 2 1E0324-G0E00-00001

Design Proposals and Scoping Assessment Pro-formaSite Location

W19-10

W19-15

W19-11 W19-12 W19-13 W19-14

W19-16 W19-17

W19Route WindowStoke Poges Lane Bridge Site

E2Environmental ZoneSlough Station to Burnham StationLocation