crossrail line 1 assessment of lighting impacts: technical...

Crossrail Line 1Assessment of Lighting Impacts: Technical Report

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

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Receptors Location

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SOX FLU SON TH HIT MBF OtherLamp TypeY Yellow WW Warm CW Cool C ColouredLamp Colour

3 High 2 Moderate 1LowGlare

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Perceived Brightness+ Impact

Other

D - DetailedSite Activity

Criteria + Magnitude

Workplace

ResidentialC - CriticalH - High M - ModerateL - Low

Receptor Group + Sensitivity

Other (Hospital)

Other (Racing track)

Built Environment

Ecological

Dark Landscape

Pedestrian

Vehicular

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Security

Exterior Amenity

Exterior Vehicular/Pedestrian

Exterior Emergency

Exterior Workplace

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

Illumination Function+ Operational Hours

Detail Assessment Pro-formaSite Location

Detailed Assessment

Site DescriptionReceptors:1. Workplace - Danes Road/Viking Business Centre. 6. Residences - Stockland Road/Cotleigh Road.2. Residences - Beechfield Gardens (Viewing North). 7. Hospital - Nursery Walk.3. Residences - Beechfield Gardens (Viewing East). 8. Residences - Nursery Walk/Old Church Hospital/Old Church Road.4. Residences - Ainsley Avenue and Romford Stadium. 9. Vehicular - Train drivers.5. Residences - Sherringham Avenue.

Detailed Installation Proposals: Scheme description + Site Diagram

Baseline Lit EffectA. This paved fenced off area is abandoned and has 6-8 metre column mounted floodlights, which are currently not in operation. The access road beyond Sandgate Close comprises of excessively

bright high pressure sodium street and working lights fitted to and around the Royal Mail sorting building with waste light spilling over to receptor location 3. Even though the houses (Receptor 3) have an approximately 4 metre wall separating them and the identified site (A) they will still be negatively effected by the proposed additional Car park and RCC building security lighting, which willincrease the general ambient lighting and sky glow around the area.

B. The existing, unlit, footpath is to be replaced by an access road that will comprise of general roadway lighting. This additional lighting is expected to negatively affect the housing located nearest to it (Receptor 2). Also located south of the railway are some Industrial Workshops (Receptor 1), due to working hours and a current bright working environment they should not be affected in a significant way.

C. Existing GEML stablings south of the railway are illuminated using high pressure sodium floodlights mounted on approximately 15 metre high columns. Housing (Receptor 4) located north of the railway is currently affected by these lights.

D. The gasworks (that are to be relocated) have high pressure sodium security floodlights, mounted in various positions in and around the site. Both the hospital (Receptor 7) and the housing (Receptor 8) are scarcely affected by these lights as both of them have excessively bright/poorly adjusted security/amenity floodlights located between them and the site. Receptor locations 7 + 8 (at ground level) have limited views due to the embankment and planting The main depot building and parking is proposed for this site..

E. Also separating Receptors 7 & 8 from the proposed main depot site are Nursery Walk, the southern part of Nursery Walk is illuminated by a combination of low pressure and high pressure sodium lanterns mounted on 6-8 metre columns. The underpass has robust fluorescent luminaires mounted to the soffit underside and a single 5-6 metre high pressure sodium lighting column located at the northern entrance. This luminaire located at the entrance has a very bright diffused distribution with poor optical control affecting the nearby housing (Receptor 6).

F. The Northern part of the identified area is within the GEML railway and is currently unlit Luminance Readings: Receptor 1: 25,000 cd/m² ** High pressure sodium local ambient lighting. Receptor 6: 4,800 cd/m² ** High pressure sodium column mounted luminaire.Receptor 2: 8,500 cd/m² ** Low pressure sodium column mounted street light. Receptor 7: 15,000 cd/m² ** High pressure sodium flood lights within hospital boundaryReceptor 3: 300 cd/m² ** High pressure sodium bulkhead street lighting beyond (A). Receptor 8: 10,000 cd/m² ** High pressure sodium flood lights.Receptor 4: 8,000 cd/m² ** Approx. 10 metre column mounted high pressure sodium flood lights Receptor 9: No access to railway lines – no measurements taken. Receptor 5: < 0 cd/m² No lighting to this area.NOTES: Measurements are taken of the brightest light source when viewed from each receptor location.

** denotes that the measured light source is not located within the Crossrail boundaries, but has the brightest impact on the specific receptor observed towards the Crossraildevelopment.When the site was visited on more than one occasion, if a variance in the lighting was found, the worst case scenario (brightest measurements) has been recorded

12.10.04 19-23:00Date/TimeBarry Hannaford & Ewald GermishuysPersonnel

02.11.04 20-21:00Date/TimeBarry Hannaford & Ewald Germishuys & Keith MillerPersonnel

NNE89-23 to NNE89-29 inclusive.Receptor Location 8


NNE89-19, NNE89-20Receptor Location 6


NNE89-33Receptor Location 3

NNE89-12 to NN89-15 inclusive.Receptor Location 2

Receptor Location 5

Receptor Location 1

Photographic Record

Climatic Conditions

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Site Diagram

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NE8 & NE9Route WindowRomford Depot (West & Central)Site

E3Environmental ZoneChadwell Heath Station to Romford StationLocation

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Site Boundary



Site Location

NNE89-10

NNE89-20

NNE89-15

NNE89-11 NNE89-12 NNE89-13 NNE89-14

NNE89-16 NNE89-17 NNE89-18 NNE89-19

NNE89-21 NNE89-22 NNE89-23 NNE89-24


E3Environmental ZoneChadwell Heath Station to Romford Station Location

Fitting: 25,000 cd/m² Fitting: 8,500 cd/m²

Fitting: 4,800 cd/m² Fitting: 15,000 cd/m²

Detail Assessment Pro-forma



Site Location

NNE89-25

NNE89-30

NNE89-26 NNE89-27 NNE89-28 NNE89-29



Fitting: 10,000 cd/m²

Detail Assessment Pro-forma




Receptor Location 5 – Residences on Sherringham AvenueBaseline; Residents view the unlit railway, Area F. A wall partially obscures their view.

During Construction; Site lights associated with the overnight works to the existing GEML will impact upon the the receptors, exacerbated as the railway is at a higher level than the adjacent land. Ambient illumination levels, therefore sky glow and visual brightness will be increased. Mitigation measures such as hoarding will be effective in obscuring illumination glare and direct luminaires at low level. Accurate direction, aiming and localised shielding of fixtures may aid in limiting spill light, glare and direct views of lamp sources, above hoarding. As the site is operational 24/7 the duration of the impact is extended. As the existing site is unlit, the suggested impact is ‘SIGNIFICANT ADVERSE’.

During Operation; Illumination to the new stabling and maintenance buildings that will be built in this area is likely to be visible above wall height columns proposed are 6m, increasing the ambient illumination levels within the space and sky glow. Spill light glare and direct view of luminairesmay also result, the suggested impact is ‘SIGNIFICANT ADVERSE’.

Receptor Location 6 – Stockland Road/Cotleigh RoadBaseline; Residents view the unlit railway, Area F, is located between the receptors and proposed Romford Depot site, Area D. Receptors view Nursery Walk pedestrian underpass, Area E, illuminated using fluorescent lighting.

During Construction; Site lights associated with the overnight works to the existing GEML and pedestrian underpass Area E will impact upon the receptors, exacerbated as the railway is at a higher level than the adjacent land. Ambient illumination levels, therefore sky glow and visual brightness will be increased. Mitigation measures such as hoarding will be effective in obscuring illumination glare and direct luminaires at low level. Accurate direction, aiming and localised shielding of fixtures may aid in limiting spill light, glare and direct views of lamp sources, above hoarding. As the site is operational 24/7 the duration of the impact is extended. As the existing site is unlit, the suggested impact is ‘SIGNIFICANT ADVERSE’.

During Operation; Illumination to the new stabling and maintenance buildings that will be built in this area is likely to be visible above wall height columns proposed are 6m, increasing the ambient illumination levels within the space and sky glow. Spill light glare and direct view of luminairesmay also result, the suggested impact is ‘SIGNIFICANT ADVERSE’.

If new lighting is installed to the improved Nursery Walk pedestrian underpass, assuming it complies to best practice guidance, an improvement upon the baseline condition may result, for users, however, additional lighting will impact upon receptors. The suggested impact is ‘SIGNIFICANT ADVERSE’.

Receptor Location 7 – Hospital/Nursery Walk Baseline; Hospital view the gasworks site, Area D, illuminated with low level security flood lighting and the unlit Nursery Walk lane, Area E.

During Construction; Ambient illumination levels, therefore sky glow and visual brightness will be increased. Mitigation measures such as hoarding will be effective in obscuring illumination glare and direct luminaires at low level. Accurate direction, aiming and localised shielding of fixtures may aid in limiting spill light, glare and direct views of lamp sources, above hoarding. As the site is operational 24/7 the duration of the impact is extended. As the existing lighting is low level, the suggested impact is ‘SIGNIFICANT ADVERSE’.

During Operation; The installation of lighting to the improved Nursery Walk, Area E, will produce an adverse impact upon the receptors, compared to the unlit baseline condition. The installation of 6m columns to the access road, within the depot site, will additionally increase illumination levels The suggested impact is ‘SIGNIFICANT ADVERSE’.

Receptor Location 8 – Residents - Nursery WalkBaseline; Residents view Nursery Walk, Area E, brightly illuminated with a combination of high and low pressure sodium road lighting.

During Construction; Ambient illumination levels, therefore sky glow and visual brightness will be increased. Mitigation measures such as hoarding will be effective in obscuring illumination glare and direct luminaires at low level. Accurate direction, aiming and localised shielding of fixtures may aid in limiting spill light, glare and direct views of lamp sources, above hoarding. As the site is operational 24/7 the duration of the impact is extended. However, as Nursery Walk baseline and is brightly lit at close proximity to the receptor, the suggested impact is ‘NOT SIGNIFICANT’.

During Operation; The reinstatement of the existing lighting to Nursery Walk will maintain the baseline condition as a minimum. If a new lighting scheme, designed in accordance with key guidance publications, is installed the impact may improve to ‘SIGNIFICANT BENEFICIAL’. The installation of 6m columns to the access road, within the depot site, will increase illumination levels. The suggested impact is ‘SIGNIFICANT ADVERSE’.

Receptor Location 1 - Workplace on Dane Road/Viking Business CentreBaseline; The occupiers of these buildings view Area B, the existing unlit footpath and railway lines. The existing GEML stablings are lit column mounted high pressure sodium floodlights. The existing lighting is poorly directed and controlled.

During Construction; Site lights associated with the overnight works to the existing GEML railway and sidings will impact upon the receptors, exacerbated as the railway is at a higher level than the adjacent land. Ambient illumination levels, therefore sky glow and visual brightness will be increased. Mitigation measures such as hoarding will be effective in obscuring illumination glare and direct luminaires at low level. Accurate direction, aiming and localised shielding of fixtures may aid in limiting spill light, glare and direct views of lamp sources, above hoarding. As the site is operational 24/7 the duration of the impact is extended. As the design of the existing lighting installation is poor the suggested impact is ‘NOT SIGNIFICANT’.

During Operation; The installation of lighting to the new access road, Area B, will produce an adverse impact upon the receptors, compared to the unlit baseline condition, the suggested impact is ‘SIGNIFICANT ADVERSE’. As the design of the existing lighting installation, in area C, is poor the suggested impact is ‘NOT SIGNIFICANT’, if a new lighting scheme, designed in accordance with key guidance publications, is installed the impact may improve to ‘SIGNIFICANT BENEFICIAL’.

Receptor Location 2 - Residences - Beechfield Gardens (Viewing North)Baseline; The receptors view Area B the existing unlit footpath and unlit railway lines.

During Construction; Site lights associated with the overnight works to the existing GEML railway will impact upon receptors, exacerbated as the railway is at a higher level than the adjacent land. Ambient illumination levels, therefore sky glow and visual brightness will be increased. Mitigation measures such as hoarding will be effective in obscuring illumination glare and direct luminaires at low level. Accurate direction, aiming and localised shielding of fixtures may aid in limiting spill light, glare and direct views of lamp sources, above hoarding. As the site is operational 24/7 the duration of the impact is extended. As the existing installation is unlit, the suggested impact is ‘SIGNIFICANT ADVERSE’.

During Operation; The installation of lighting to the new access road, Area B, will produce an adverse impact upon the receptors, compared to theunlit baseline condition. As new stabling lighting will be installed, the suggested impact is ‘SIGNIFICANT ADVERSE’.

Receptor Location 3 - Residences - Beechfield Gardens (Viewing East)Baseline; Residents view an unlit abandoned area, Area A. (Non-operational lighting installed). A wall approximately 4m separates the proposed site.

During Construction; Ambient illumination levels, therefore sky glow and visual brightness will be increased. Mitigation measures such as hoarding will be effective in obscuring illumination glare and direct luminaires at low level. Accurate direction, aiming and localised shielding of fixtures may aid in limiting spill light, glare and direct views of lamp sources, above hoarding. As the site is operational 24/7 the duration of the impact is extended. As the existing installation is unlit, the suggested impact is ‘SIGNIFICANT ADVERSE’.

During Operation; There is a wall approx. 4m separating the proposed site. However, reflected illumination from the proposed Car Park and RCC building is likely to be visible above wall height - columns proposed are 6m. Ambient illumination levels within the space, sky glow and visual brightness will increase. Spill light, glare and direct view of lamps may result. The suggested impact is ‘SIGNIFICANT ADVERSE’.

Receptor Location 4 – Ainsley Avenue and Romford StadiumBaseline; The existing GMEL stablings south of the railway are illuminated are lit column mounted high pressure sodium floodlights. The existing lighting is poorly directed and controlled. The railway is unlit, Area F.

During Construction; Site lights associated with the overnight works to the existing GEML railway and sidings will impact upon the receptors, exacerbated as the railway is at a higher level than the adjacent land. Ambient illumination levels, therefore sky glow and visual brightness will be increased. Mitigation measures such as hoarding will be effective in obscuring illumination glare and direct luminaires at low level. Accurate direction, aiming and localised shielding of fixtures may aid in limiting spill light, glare and direct views of lamp sources, above hoarding. As the site is operational 24/7 the duration of the impact is extended. As the design of the existing lighting installation is poor the suggested impact is ‘NOT SIGNIFICANT’.

During Operation; It is assumed the railway will be unlit, as a result it is suggested that there will be no impact upon the receptors. As there is existing stabling within Area C, re-instatement of this scheme will maintain the baseline condition, as a minimum. The suggested impact is ‘NOT SIGNIFICANT’. If a new lighting scheme, designed in accordance with key guidance publications, is installed the impact may improve to ‘SIGNIFICANT BENEFICIAL’.

AnalysisNE8 & NE9Route WindowRomford Depot (West & Central)Site





Receptor Location 9 – Train DriversBaseline; Train drivers navigate an unlit railway ,Area F, to Area C illuminated with High pressure sodium lighting.

During Construction; Due to the elevated location of the track, the train drivers will have unobstructed views into the construction sites. Ambient illumination levels, therefore sky glow and visual brightness will be increased. Mitigation by the use of hoarding may be ineffectual as a result of these clear sight lines. Accurate direction, aiming and localised shielding of fixtures that aid in limiting spill light, glare and direct views of amp sources above hoarding level. However, given the close proximity to areas C and A and multiple sight lines, glare may be seen at some viewing locations. As the site is operational 24/7. For the track, the duration of the impact is extended. The suggested impact is ‘SIGNIFICANT ADVERSE’. Crossrail will work with Network Rail to devise and implement measures that will ensure that any impact is ‘NOT SIGNIFICANT’.

During Operation; Existing lighting reinstated will at a minimum be equal to the existing installation. The suggested impact is ‘NOT SIGNIFICANT’. If a new lighting scheme, designed in accordance with key guidance publications, is installed the impact may improve to ‘SIGNIFICANT BENEFICIAL’.

AnalysisNE8 & NE9Route WindowRomford Depot (West & Central)Site


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