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West of England Partnership South Bristol Link Obtrusive Light Impact Assessment Report

June 2013

South Bristol Link road Obtrusive Light Survey Report

Atkins Obtrusive Light Survey Report | Version 1.0 | 2 January 2013

Notice This document and its contents have been prepared and are intended solely for Bristol City Council and North Somerset Council’s information and use in relation to Obtrusive light in connection with the South Bristol Link.

Atkins PLC assumes no responsibility to any other party in respect of or arising out of or in connection with this document and/or its contents.

This document has 28 pages including the cover.

Document history Job number: 5103087 Document ref: Obtrusive Light Impact

Assessment

Revision Purpose description Originated Checked Reviewed Authorised Date Rev 1.0 Draft for comment DM CF MB NR 13/05/1

3

Client signoff Client West of England Partnership

Project South Bristol Link

Document title Obtrusive Light Survey Report

Job no. 5103087

Copy no.

Document reference

Obtrusive Light Survey Report


Atkins Obtrusive Light Survey Report | Version 1.0 | 2 January 2013

Table of contents Chapter Pages

1. Introduction 51.1. Purpose of the Lighting Impact Assessment 51.2. Obtrusive light applied to Road lighting 51.3. The SBL Site 51.4. Environmental Classification 61.5. Site Appraisal by Area 6

2. LIA Methodology 82.1. Desktop Study 82.2. Survey 82.3. Survey Results Table 8

3. Recommendations & Mitigations 103.1. Recommendations for Obtrusive Lighting Effects of Construction and Final Proposed Road Lighting 10

Appendices 19Appendix A. Glossary 20A.1. Glossary 20

Appendix B. Lighting Drawings 23

Appendix C. Desktop Study 24

Appendix D. Survey Report 26

Tables Table 1. Environmental Zones 6Table 2. Obtrusive Lighting limitations for Exterior Lighting Installations – General Observers 6Table 3. Environmental Zone Summary 7Table 4. Mitigation Table Site Area 1 10Table 5. Mitigation Table Site Area 2 11Table 6. Mitigation Table Site Area 3 12Table 7. Mitigation Table Site Area 6 13Table 8. Mitigation Table Site Area 7 14Table 9. Mitigation Table Site Area 8 15Table 10. Mitigation Table Site Area 9 15Table 11. Mitigation Table Site Area 10 16


Atkins Obtrusive Light Survey Report | Version 1.0 | 2 January 2013 5

1. Introduction This report documents the obtrusive light impacts for the proposed South Bristol Link for defined lighting receptors identified in the desktop study and confirmed during the existing lighting survey. The impacts will be the net changes in obtrusive light over above those currently experienced by the lighting receptors Obtrusive Light criteria is outlined in the Institution of Lighting Professionals (ILP) guidance note on Obtrusive Lighting (ILP Guidance Note GN01:2011) and the SLL Guide ‘To Limiting Obtrusive Light 2012’. We have assumed that the proposed road cannot constitute a statutory nuisance under Clean Neighbourhoods and Environment Act 2005 if the proposed road lighting meets the recognised guidance, where there is doubt as to the proposed lighting meeting the guidance then mitigation methods have been recommended.

1.1. Purpose of the Lighting Impact Assessment The purpose of the Lighting Impact Assessment (LIA) is to provide an objective view of what the current baseline obtrusive light conditions are and to document them using a framework of objective criteria for planning permission. The LIA also forms an appendix of the overall Environmental Statement). Moreover, the LIA compares the existing baseline conditions (identified in the survey report (Appendix D)) with the proposed external lighting for the SBL. The LIA will also identify mitigation measures that can be adopted by the design team to reduce the obtrusive light impact of the new SBL lighting installations.

1.2. Obtrusive Light applied to Road Lighting Obtrusive light can be seen as external lighting that causes a loss of amenity for receptors. Road lighting is a defined example for the purposes of obtrusive light and has certain exemptions when compared to other external lighting installations. The criteria that apply to road lighting are:

• Skyglow • Light Intrusion • Luminaire luminance

Sky glow is upward stray light from luminaires. The current design trends of road lighting luminaires is to have flat luminaires glass full cut-off luminaire column mounted with minimal tilt offering almost no upward light directly. These luminaires are a significant improvement on the older semi cut-off lanterns.

There will be reflected upward light from road and surrounding ground surfaces and from passing vehicles as they move through the light distribution. This reflected upward light increases when conditions are wet from increased reflectance off wet surfaces and light scatter off raindrops. Passing light coloured vehicles will also give increased upward light. Reflected light is not considered by the published obtrusive light criteria due to variance in local conditions. Weather conditions are also not relevant.

Light intrusion is stray light that is incident on windows. The light is measured as illuminance on the vertical face of the window. The light has to be direct light from the luminaire and not reflected light say off the vertical sides of light coloured vehicles. House side shields and good luminaire cut-off are the normal mitigation measures

Luminaire luminance can be thought of as being the brightness of the luminaire against the ambient scene brightness. The luminaire luminance can be thought of as discomfort glare and would be intrusive to internal rooms if the recommend intensities are exceeded from normal observer positions. House side shields, reducing luminaire tilt and better luminaire cut-off are all accepted mitigation measures.

1.3. The SBL Site The SBL site extends from Long Ashton in the Northwest (in an L shape) to Cater Road roundabout at the east end. The area is semi-rural for the western half of the site and extends eastwards through a



predominately suburban residential area. The SBL is not intended to be lit throughout its length. The road is lit at junctions and in the suburban and city areas.

1.3.1. Zoning of the Site The site was divided into twelve zones following the areas covered by the drawings. Each of the zones will be given an individual environmental classification. Each zone will be assessed against its individual receptor points as indicated in the desktop study (see appendix B).

1.4. Environmental Classification Obtrusive lighting is assessed against a set of environmental lighting criteria based upon the level of background ambient light experienced in several types of environment. The table below details the criteria:

Table 1. Environmental Zones

Environmental Zones

Zone Surrounding Lighting

Environment

Examples

E0 Protected Dark UNESCO Starlight Reserves IDA Dark Sky Parks

E1 Natural Intrinsically Dark National Parks Areas of Outstanding Natural Beauty, etc.

E2 Rural Low district brightness Village or relatively dark outer suburban locations

E3 Suburban Medium district brightness Small town centres and suburban locations

E4 Urban High district brightness Town/City centres with high levels of night time activity.

(source Guidance Notes for Obtrusive Light GN01: 2011 ILP)

Table 2. Obtrusive Lighting limitations for Exterior Lighting Installations – General Observers

Environmental Zone

Sky Glow ULR Max %

Light Intrusion ( into windows) Ev ( lux)

Luminaire Intensity I (cd)

Building Luminance Pre Curfew

Pre curfew

Post curfew

Pre curfew

Post curfew

Average L (cd/m2)

E0 0 0 0 0 0 0 E1 0 2 0(1*) 2,500 0 0 E2 2.5 5 1 7,500 500 5 E3 5.0 10 2 10,000 1,000 10 E4 15 25 5 25,000 2,500 25

(*) Permitted for Public road lighting only ( source ILP Guidance Note GN01) The lighting criteria which is relevant for this appraisal is highlighted in yellow

1.5. Site Appraisal by Area For details of the site conditions see the survey report and desktop study in Appendices B & C.



Table 3. Environmental Zone Summary By Site Area

Environmental Zones

Site Area

Description Lighting

Environment

Environmental Zone

1 Ashton Court Long Ashton and Yanley Rural E2

2 Park and Ride and A 370 Interchange/ Brookgate Industrial Estate

Rural E2

3 Rose Meadow View Rural E2

4 Landfill Site and Hanging Hill Wood Rural E2

5 Hanging Hill Wood Rural E2

6 A38 Junction Rural E2

7 Highridge Common Rural E2

8 King George Road Suburban E3

9 King George Road East and the reserved corridor

Surburban E3

10 Hareclive Road Junction Urban E4



2. LIA Methodology 2.1. Desktop Study A desktop study was undertaken at the inception of the project to ascertain the extent and position of obtrusive lighting receptors. The receptors referred to in this LIA are only considered from an obtrusive lighting requirement.

2.1.1. Choice of Receptor Points The LIA used the receptor points identified in the desktop study. Each receptor point was further refined by on site investigation. All recorded LIA points were located on public land. The receptor points were also restricted to ground level views. Views from first floor windows could not be taken although establishing whether first floor windows had a view of the site could be ascertained. Comments on first floor window views are included in the results table.

Illuminance readings were taken on the horizontal and vertical planes at a height of 1.5m above ground level. Luminance readings were taken of lamp sources contained within the view from eye level from the survey point.

2.2. Survey A lighting survey was undertaken in August 2012 to verify baseline obtrusive lighting conditions see (appendix C). The survey also verified the choice of receptors and took lighting criteria readings to be compared with the lighting criteria referred to in GN01.

2.2.1. Survey Results Table The survey results table is located in (appendix C) at the rear of this document. The survey’s prime purpose was to document in objective terms the baseline conditions at each survey point and to use photography to help with the documentation of the baseline conditions.

2.2.2. Reading the photographs The photographs are either single shots or photomontage panoramas to encompass a whole view. The photographs cannot be used as objective measuring tool and as such are included for guidance and identification purposes only. The night time photographs have used long time exposures and have in some cases been lightened in Photoshop to reveal details, therefore the overall brightness of the scene cannot taken as being realistic but the relative brightnesses in the scene can be seen as representative of what the camera sees.

2.3. Recommendations and Mitigation Techniques

2.3.1. Recommendations The general recommendations of this report are the following:-

• Apply SLL and ILP guidance on obtrusive light. • Use full cut-off road luminaires. • Do not tilt the luminaires. • Avoid high luminance light sources • Do not over light the road. • Use appropriate mounting heights (reduce the height of columns). • Avoid drop glass Luminaires (pedestrian crossing lights can be difficult)

2.3.2. Mitigation • Reposition the luminaire if possible. • Reduce height or tilt of luminaire • Use outreach brackets if needed to obtain optimal positioning of the luminaire



• Apply curfews on luminaires such as construction compound luminaires • Use automatic presence detection and photocell minimise luminaire usage



3. SBL Recommendations & Mitigations by Site area

3.1. Recommendations for Obtrusive Lighting Effects of Construction and Final Proposed Road Lighting

3.1.1. Construction Phase The lighting during the construction phase is likely to exhibit more obtrusive lighting impacts than the final proposed road lighting scheme. This is due to the temporary nature of the installation and the low levels of design normally undertaken for construction lighting. The lighting scheme is used for Health and Safety and/or site security.

The best mitigation method is to propose a curfew on the site lighting during non-working hours with any security lighting on automatic detection control. All lighting should be full cut-off luminaire with no tilt above the horizontal plane and mounting heights reduced to a reasonable level of no more than 8m.

It is recommended that at detailed implementation design stage for the lighting, check calculations are undertaken for light intrusion and Luminaire luminance for receptors as noted below. This will confirm the final design, once final fittings, columns etc have been selected, is in accord with this assessment.

3.1.2. Site Area 1 Ashton Court, Long Ashton & Yanley Commentary

The lighting to the A370 Junction will have a relatively low impact on the current view from Ashton Court. The Universities hockey pitches are the largest single contributor to obtrusive light in the vista from the front facade of Ashton Court. The new luminaires at the A370 Junction will have lower light emissions than the existing drop glass class A road lanterns on the A370, so although there will be more luminaires the net effect of the junction should be less due to the better optical design of the luminaires.

The Survey point references (SP No/No) refer to receptor points identified in the desktop study and survey report included in the appendices.

Table 4. Mitigation Table Site Area 1

Prospective Impact Significance Mitigation Residual Effect

Operation

Brightness in view from Ashton Court from final road lighting

Non- Significant/

Negligible

Apply GN01 guidelines and use full cut-off luminaires with no tilt

None

Long Ashton

SP1/3-1-4

Non- Significant/

Negligible


None



Yanley

SP1/5-1-6

Non- Significant/

Negligible


None

3.1.3. Site Area 2 Park and Ride and A370 Interchange/ Brookgate Industrial Estate

Commentary

The new additional lighting to the north of the junction between the spur to the Park and Ride site and the A370 will have little effect on the residential properties on Ashton Drive as the junction will be obscured by the tree line to the west of the industrial estate and the industrial estate itself.



Construction

Brookgate

Glare from construction compound security and general floodlighting

Sp 2/1

Non-significant None None

Ashton Drive

SP2/2

Negligible Apply GN01 guidelines and obtain lighting proposals from contractor prior to commencement of works. Apply lighting curfew

None

Operation

Brookgate

Glare from construction compound security and general floodlighting

Sp 2/1

Non- Significant

Negligible

None

None

Ashton Drive

SP2/2

Negligible Apply GN01 guidelines and use full cut-off luminaires with no tilt

None



3.1.4. Site Area 3 Rose Meadow View Commentary

The eastern row of static caravans on Rose Meadow View is likely to have views of the construction compound and the new lighting especially if the scrub trees to the west of the railway are to be removed during the groundwork stage. The proposed lighting will be visible to some caravans.



Construction

Luminaire luminance from Rose Meadow View caravans of the construction compound floodlighting

Sp 3/1

Significant Apply GN01 guidelines and obtain lighting proposals from contractor prior to commencement of works. Apply lighting curfew

None

Operation

Brightness in view from Rose Meadow View caravans

Sp 3/1

Non- Significant/

Negligible


None

3.1.5. Site Area 4 Landfill Site and Hanging Hill Wood No proposed lighting in this area

3.1.6. Site Area 5 Hanging Hill Wood No proposed lighting in this area



3.1.7. Site Area 6 A38 Junction The new junction is immediately to the North of Castle Farm. We do not believe the proposed lighting will cause significant obtrusive lighting issues for Castle Farm due to the distance between the lighting and farm buildings.



Construction

The lighting to the site compound to the east of the A38

Temporary Receptor SP6/2


None

The lighting to the site compound to the east of the A38

Temporary Receptor SP6/3


None

Operation

Castle Farm

SP6/1

Non- Significant/

Negligible


None

Undertake check calculations for light intrusion and Luminaire luminance for receptor point 6/1 and temporary points 6/2 and 6/3

3.1.8. Site Area 7 Highridge Common Commentary

The Highridge Common area will be a sensitive area due to the proximity of the properties on the common itself and the line of properties on Highridge Green. The properties to the east of the common on Highridge Road are unlikely to experience notable effects. The two properties on the common itself sit in a dark landscape and the new road will represent a change in their local environment, although the lighting only starts well to the east of the properties

The height of the luminaires is 8m and there are a couple of isolated luminaires to the western end of the common; provided they are full cut-off flat glass, the impact will be non-significant.

Undertake check calculations for Highridge House and Grove House for luminaire luminance SP7/6 SP7/7and check calculations for Light intrusion and luminaire luminance for Highridge green properties SP 7/3.





Operation

Highridge Cottage

Sp 7/6

Significant Apply GN01 guidelines and undertake sample calculations as noted in 3.1.1 above

None

Grove House

Sp7/3

Significant Apply GN01 guidelines and use full cut-off luminaires with no tilt

Apply GN01 guidelines and undertake sample calculations as noted in 3.1.1 above

None

Highridge Green

SP7/1,7/5

Significant Apply GN01 guidelines and undertake sample calculations as noted in 3.1.1 above

None

Undertake sample Obtrusive lighting calculations during detailed design for survey points SP7/1,7/3, 7/5 and 7/6 for vertical illuminance on windows and Luminaire luminance during see appendices for positions of calculations.

3.1.9. Site Area 8 King Georges Road Commentary

After crossing Highridge Road, SBL runs down the existing line of King George Road which is suburban feeder road with low traffic density. The properties are generally set back 10m from the road whilst the existing road lighting is located at the carriageway kerb edge. The proposed lighting scheme includes two lines of lighting columns, one at the pedestrian/cycle path and another at the carriageway kerb line. The heights of these luminaires are 4m and 8m respectively, the lamp source is LED. It is likely that none of the over viewing receptor points SP8/1-8/10 will have any obtrusive light issues due to the current high levels of obtrusive light evident in the baseline conditions (see survey report Appendix D).

The residual effect of the proposed lighting will be better performing than the existing baseline semi cut-off luminaires due to the improved optical performance. Undertake check calculations to test the new positions especially for the cycle route lighting.




Prospective Impact (s) Significance Mitigation Residual Effect

Operation

King George Road

Glare from new luminaires road and cycle path. Light intrusion to windows Additional obtrusive light from new installation entering windows or luminance of new luminaires causing glare SP 8/1 and 8/5

Non- Significant/

Negligible


None

Undertake sample Obtrusive lighting calculations during detailed design for survey points SP8/3and 8/5.

3.1.10. Site Area 9 King George Road East and the Reserved Corridor SBL runs through the reserved corridor. In this area is a school and sheltered housing accommodation. Given the distance to these properties, the lighting scheme will have some effect. The road then continues to the east towards Cater Road.



Operation

King George Road East

Additional obtrusive light from new installation entering windows or luminance of new luminaires causing glare SP 9/1 and 9/2

Negligible Ensure correct luminaire distribution.

None

Sheltered housing development on Queens Road

Additional obtrusive light from new installation entering windows or luminance of new luminaires causing glare SP 9/4 and 9/5


None

Gable end council houses

Glare from new




luminaires road and cycle path. Light intrusion to windows Sp 9/6

Four-storey flats Glare from new luminaires road and cycle path. Light intrusion to windows SP 9/10


Undertake sample Obtrusive lighting calculations during detailed design for survey points SP9/4, 9/5, 9/6and 9/10

3.1.11. Site Area 10 Hareclive Road Junction SBL has a junction with Hareclive Road and then joins the line of the existing Whitchurch Lane.



Operation

Gable end flats

Glare from new luminaires road and cycle path. Light intrusion to windows

Sp 10/7 10/8

Non- Significant/

Negligible


None

Whitland Road.houses

Sp 10/9 & 10/10

Non- Significant/

Negligible


none

Undertake sample Obtrusive lighting calculations during detailed design for survey points SP10/7, 10/8, 10/9 and 10/10.

4. Conclusions The survey of the existing obtrusive light conditions on site (taken as the baseline) proved the wide variety of external ambient conditions that the proposed road will pass through; from the relatively rural and environmentally sensitive areas, around Yanley and Long Ashton, to the densely populated areas around Ashton Vale, Bedminster, Highridge and Hartcliffe. Moreover, the results of the survey demonstrated that the baseline conditions are well within those expected for each of the site areas and they conform to the



environmental zoning criteria for obtrusive light as defined by the Institution of Lighting Professionals (ILP) - ‘Guidance Note GN01’. The environmental zoning criteria were chosen during the desktop study and none of the assumptions were changed as a result of the survey.

In general, the levels of invasive light measured at the receptors from the existing installations are well within the guidance recommendations. The vertical illuminance values were taken at either the receptor positions or at the boundary with private lands. The survey also showed that in most cases there are few receptors that are likely to have obtrusive light issues with the current baseline conditions. The Ashton Vale end of the project is largely an E2 area, but any views from the south are affected heavily by the rising lands of Clifton and south Bristol generally in the background, which exhibit levels of light pollution and sky glow similar to a suburban (E3) or city (E4) area.

The performance of the proposed lighting will be significantly better than the existing lighting due to changes in luminaire design and better lighting technology such as high performance reflectors and better light sources.

Appendices



Appendix A. Glossary A.1. Glossary

Term Description Unit Colour rendering The way colours look under the

light of the lamp Ra

Correlated Colour temperature The appearance of the colour of the light related to a plankian black body radiator warm white 2500-3000k intermediate white 3200-3500K Cool White above 4000K

Deg K

Full cut-off luminaire A luminaire that emits no upward light

House side shield An additional shielding device to stop stray backward light affecting nearby residential properties

HPS High pressure sodium a golden white source with low colour rendering but with long life and high energy efficiency

Illuminance Measure of the amount of luminous flux incident on a surface

Lux (Lx)

Intrusive Light The light incident on a window surface

Lux (Lx)

LEDs Light emitting diodes a white light based on solid state electronics high energy efficiency and long life.

Luminance Measure of the physical brightness of a surface in the direction of the observer

Nits Cd/m2

Mesopic Referring to eyesight - Partial colour vision delivered by Rod and Cone ganglian cells during night time and twilight conditions when illuminance is between 2and 20 lux

Metal Halide A white light source with good colour rendering but relatively short lamp life but reasonably energy efficient



Mounting Height Height of luminaires above carriageway level normal heights 4, 6,8, 12m height luminaires are normally column or wall mounted

Metres (m)

Obtrusive Light The general term for all types of light covered by the statutory nuisance.

Photopic Referring to eyesight - Full colour vision delivered by Cone ganglian cells during daylight and twilight conditions

Scotopic Referring to eyesight - Monochrome vision delivered by Rod ganglian cells during night time and twilight conditions when illuminance is between below 2 lu.x

Uniformity Ratio of average /min luminance or illuminance values



Appendix B. Lighting Drawings & Lighting Equipment

B.1. North Somerset/Halcrow luminaires

B.2. BCC Luminaires

B.3. Additional calculations for site area 6 - to be provided following design stage B.4. Additional calculations for site areas 7, 8, 9 & 10 - to be provided following design stage

A CH2M HILL COMPANY

100023397

Bristol City Council and North Somerset Council

Halcrow Group Limited

www.halcrow.com

Burderop Park, Swindon, Wiltshire, SN4 0QDTel +44 (0)1793 812479 Fax +44 (0)1793 812089

South Bristol Link

Lighting LayoutSheet 2 of 3

Junction layout changed, lighting layout unchanged

Additional columns by rail bridge. New retaining walls near Colliter's Brook bridge.

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SP 3/1

Lighting LayoutSheet 3 of 3

A CH2M HILL COMPANY

100023397

Bristol City Council and North Somerset Council

Halcrow Group Limited

www.halcrow.com

Burderop Park, Swindon, Wiltshire, SN4 0QDTel +44 (0)1793 812479 Fax +44 (0)1793 812089

South Bristol Link

Junction layout changed, lighting layout unchanged

New retaining walls near Colliter's Brook bridge

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sp 6/1

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sp 6/2

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sp 6/3

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Note sp6/2 and 6/3 are for construction compound lighting only

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SP 7/6

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SP 7/5

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SP 7/1

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Obtrusive light and luminaire luminance calculations to be undertaken for survey points marked during detailled design

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SP 7/3

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SP9/4

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SP9/5

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SP9/2

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Nursing home

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SP9/6

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SP9/10

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Obtusive Lighting calculations for site areas 7, 8 ,& 9

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SP9/1

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SP 8/1

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SP 8/5

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SP10/5

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SP9/12

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SP10/9

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Additional obtrusive light calculations to be carried out during detailed design to prove compliance with ILP GN01 see Mitigation section for details of which calculations are to be undertaken

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Proposed Lighting Scheme Site areas 9 and 10 Positions of Obtrusive Lighting Calculations.

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SP9/10

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SBL (Bristol) PROPOSED

1. Columns & Brackets Sheet 1 of 1

Location: Col No/Qty Nominal Height Bracket Proj Manufacturer Catalogue Ref FoundationKing Georges Road & New Link Road and Highridge Grean/Road Area 68 8m Post Top

Fabrikat BCC SPEC (Conical) SEE 106 SPECIFICATION

Highridge Road & Highridge Green Area 3 8m Twin Arm Stub Fabrikat BCC SPEC (Conical) SEE 106 SPECIFICATIONKing Georges Road Footpaths 23 6m Post Top CU Phosco Manchester (Mid Hinged), BCC SPEC SEE 106 SPECIFICATIONNew Link Road Footpaths 17 6m Post Top CU Phosco Manchester (Mid Hinged), BCC SPEC SEE 106 SPECIFICATIONWhichurch Lane Area & Queens Road 26 10m Post Top Fabrikat BCC SPEC (Conical) SEE 106 SPECIFICATION

2. Painting

Section 28 Schedule of Equipment To Be Used (Street Lighting)

Location: Col Undercoat (1 Coat) Main Coat (1 Coat) Colour BS or Ral

As Above All Columns T WASH Dacrylate HB (Line number 41-464) "BLACK" As Per Line Number

3. Lanterns & Lamps

Location: Lantern Lantern Wattage & Type Manufacturer Notes

King Georges Road, New Link Road & Highridge Green/Road Area (8m Mounting Height) BGP322 LED & 60W Philips All Lanterns to incorporate the Philips Starsense

Computer Management System

Whichurch Lane Quens Road Area (10M) BGP323 LED & 60W Philips All Lanterns to incorporate the Philips Starsense Computer Management System

Foothpath Areas (King Georges Road and New Link Road) (6M) Axia 16LED LED & 19W Urbis All Lanterns to incorporate the Philips Starsense

Computer Management System

Notes: Lantern Wattages may change (decrease) due to continual advances in LED Technology (certain wattages may also increase due to Tree Planting)

Catalogue Reference

BGP322 T50 GRN 73-25 657 DW

BGP322 T50 GRN 73-25 657 DM

Axia 16LED COOL WHITE 5080 31314F

4. Control Details

Location: Type (PEC OR Other) ManufacturerAll Locations CMS Philips

5. Miscellaneous

Item Manufacturer Catalogue Reference

Isolators (no sub circuits)Charles Endirect or Lucy Lighting Equivalent L3/SFNE/K3

Electrical Supply WPD N/A Philips BGP322 & 323 Urbis Axia

Feeder Pillars & Controls Peter Wall Available on RequestNote: All Work to BCC Specification (Please refer to specification)Note: Please ensure column doors are aligned correctly, Brass Earthing Bolts are used, inside of doors are painted and Anti Vandal Door Lock are fitted

Description

Feeds for Centre Island Double Arm Columns etc

Catalogue ReferenceStarsense CMS System

All Columns to be fed via WPD Supplies (Where applicable)

Switched Fuse Isolator single fuse



Appendix C. Desktop Study

South Bristol Link Obtrusive Light Desktop Study West of England Partnership

25 July 2012

South Bristol Link Obtrusive Light Desktop Study

Private and confidential Atkins Obtrusive Light Desktop study | Version 1.0 | 23 July 2012

Notice This document and its contents have been prepared and are intended solely for West of England’s information and use in relation to gaining planning permission for the South Bristol Link Rd as part of the overall Environmental Impact assesssment

ATKINS PLC assumes no responsibility to any other party in respect of or arising out of or in connection with this document and/or its contents.

.

Document history Job number: Document ref: Obtrusive Light Desktop Study

Revision Purpose description Originated Checked Reviewed Authorised Date

Rev P1 Internal Draft for comment DM 2/08/12

Client signoff Client West of England Partnership

Project South Bristol Link

Document title Obtrusive Light Desktop study

Job no. 5103087

Copy no.

Document reference

Obtrusive Light Desktop Study



Table of contents Chapter Pages

Introduction 32. The Site Error! Bookmark not defined.62.1. Site Analysis by Site Area 4

3. Obtrusive Light 53.1. The Receptors 53.2. Environmental Zoning. 63.3. Local Regulations. 63.4. Possible effects. 73.5. The Survey 7

Appendices Error! Bookmark not defined.Error! Bookmark not defined.Appendix A. English Heritage Requirements 9A.1. English Heritage Letter 9A.2. Ashton Court and All Saints Church 11A.3. Long Ashton and Yanley Conservation Areas 12A.4. Bishopsworth and Malago Conservation area (including Highridge Common) 12

Appendix B. ILP Guidance Note GN01:2011 Error! Bookmark not defined.18

Appendix C. Drawings Error! Bookmark not defined.19C.1. Receptors Locations by Site Area 14

Appendix D. Survey Data Table 15

Tables Table 1. Project Obtrusive Light Environmental Zoning according to ILP GN01 6Table 2. Obtrusive Lighting limitations for Exterior Lighting Installations – General Observers 7

Figures Figure 1. Ls-100 Luminance Meter 8Figure 2. T-10 Iluminance Meter 8Figure 3. Long Ashton and Yanley Conservation Areas Error! Bookmark not defined.16Figure 4. Highridge Common Error! Bookmark not defined.Error! Bookmark not defined.Figure 5. Bishopsworth & Malago Conservation Area Error! Bookmark not defined.17

Introduction



1. Introduction The purpose of this desktop study is to determine the obtrusive light implications for the South Bristol Link. The study will define the criteria, scope and receptors that are likely to be affected by the construction of the new road on the night time lit environment and will identify the scope of the Obtrusive Light Survey that will be conducted to determine the baseline situation and will be included as an appendix to the final report for inclusion in the Environmental Impact Assessment (EIA).

This study is the first step in the process of identifying and evaluating obtrusive light problems and recommending mitigation measures to the design team for implementation in the final lighting design. The final report will form part of the EIA that will be used to address environmental impacts as part of the planning procedure for the project.

The nature of the project and its site means that the baseline conditions change markedly depending upon the surrounding environs. This changing nature will mean that the obtrusive lighting criteria will also have to change to match the current site conditions. To accommodate the varying site conditions we propose to sub-divide the site into subsections and apply the appropriate Environmental Light zoning to each of the area hence determine the obtrusive light criteria appropriate to each zone.

Background to Obtrusive Light Legislation

Obtrusive Light (formerly Light pollution) has been determined as a statutory nuisance under the terms of the Clean Neighbourhoods and Environment Act from 2005 in sections 101, 102 and 103 these sections are then enforced utilising sections 79,80, 81 and 82 of the Environmental Protection Act 1990.

In the case of this project the lighting for this project does fall under the jurisdiction of the above legislation.

2. The Site The site is the proposed South Bristol Link road from the A 370 in Long Aston through to the Hengrove roundabout. The extent of the site is covered by the series of ten Pre Consultation Aerial Plans ref MMD-291342-C-DR-00-GA-0079 to MMD-291342-C-DR-00-GA-0089b. It is proposed to sub divide the site into site areas covered by each of the ten drawings.

2.1. Site Analysis by Site Area

2.1.1. Site Area 1 A370 link In this site area the new road passes through open fields with small groups of trees at field boundaries. The new road is proposed to be lit via a single sided arrangement of street lanterns with dual sided junction arrangement for the new roundabout linking onto the A370. The proposed luminaires are likely to be full cut off lanterns mounted at a height of 8-12m. There are no residential properties in the immediate vicinity but there are possible views from both All Saints Church and Ashton Court Estate. These two sites have been highlighted as sites of significance and impacts on their night time environment should be assessed. The Long Ashton, Yanley and Westleaze and Wyke conservation areas have also been considered and preliminary receptor point allocated to these will be finalised during the survey.

2.1.2. Site Area 2 Ashton Vale Rapid Transit Link In this site area the road passes through open fields up to the industrial buildings adjacent to the proposed Brookgate stop. There are residential properties backing on to the line of the road to the East at about 150-200m distance. The park and ride car park may be a source of obtrusive light but it is a further 250m away from the residential properties. All Saints Church and Ashton Court have already been considered as part of area 1.



2.1.3. Site Area 3 Brookgate Stop In this site area the two link roads combine to form a single new road. There appears to be no residential properties in the area of the stop and junction with an industrial estate immediately to the east of the junction.

We assess this area to have no receptors at present; this will be confirmed by the survey.

2.1.4. Site Area 4 South of Railway/Colliters Brook In this site area the road passes through open fields. There is no lighting on this section of the road south of the railway bridge hence no impact.

2.1.5. Site Area 5 Hanging Hill Wood/ A38 Junction In this site area the road passes through open fields to the east of Hanging Hill Wood. There is junction street lighting to cover the intersection with the A38. The only receptor appears to be a farm to Northeast of the junction at about 500m from the road. The farm house appears to have a gable end facing the junction.

2.1.6. Site Area 6 A38 Junction/Castle Farm In this site area the road passes through open fields as the new road crosses the east-west running A38. The only receptor is likely to be Castle Farm to the southwest of the Junction.

2.1.7. Site Area 7 Highridge Green Road In this site area the road leaves the open fields and enters an area of residential housing. The houses are generally set back between 3-15m from the kerb line of the adjoining road Highridge Green Road and get increasingly closer to the line of the new road as the road merge. The new lighting starts at the junction of Highridge Green Road and the SBL scheme.

2.1.8. Site Area 8 Highridge Road In this site area the road is passing through the last of open land to the southwest of the junction with Highridge Road. to the southeast of the junction the road passes through a residential estate on land set aside for this development. There are residential properties on both sides of King Georges Road. The residential properties run parallel to the scheme through to the junction with Queens Road. The distance between these properties and kerb line of the new road will mean that these properties are considered as receptors. Additional receptors have been added for possible views for The Malago and Bishopsworth Conservation Areas although it is not clear at the moment whether these areas will have views of the new road.

2.1.9. Site Area 9 Queens Road In this site area the road passes a school and some commercial buildings before continuing through the residential properties. This will effectively mean it is likely only the gable ends of the properties and the front and rear faces of the last properties on each side of the road need to be considered as receptors. The school is set back from the road and will probably be unaffected. The school will be a receptor at present but maybe dropped during the survey, likewise the commercial properties.

2.1.10. Site Area 10 Hareclive Road In this site area the road continues to pass through residential properties on both sides up to the intersection with Hareclive Rd. East of the intersection the residential properties are only to the southern side of the new road . The residential properties stop at the Cater Rd Intersection.

3. Obtrusive Light 3.1. The Receptors The receptors have been identified as the residential buildings backing on to the proposed road. The receptors chosen are our inital assessment of the receptor points required to document the baseline levels of obtrusive the receptors also include local Heritage assets and Conservation areas identified by the letter from English Heritage (see appendix 1). The adjacent industrial buildings can largely be ignored as they are



unlikely to be occupied during the hours of darkness. Industrial buildings are not normally considered as receptors as disturbance to sleep is considered the prime nuisance. This assumption will be confirmed by the survey. Any specialised buildings such as farm buildings that could be sensitive to disturbance from light will be identified through the survey. The receptors have been initially identified on the marked up drawings (located in appendix C).

3.2. Environmental Zoning. The nature of the site changes through the each of the ten site areas. we have applied an environmental Zone for each area as follows:-

Table 1. Project Obtrusive Light Environmental Zoning according to ILP GN01

Site Area

Environmental Zone

Surrounding Lighting Environment

Example

01 E2 Rural Low District Brightness

Village or Relatively dark outer Suburban Area











07 E3 Suburban Medium District Brightness

Small town centres or suburban areas





10 E4 Urban High District Brightness

Town/city centres with high levels of night time activity

3.3. Local Regulations. The site lies within the jurisdiction of the two local authorities of North Somerset and the City of Bristol. We have visited their planning portals to establish any local requirements after the survey. To date we can find no specific local planning recommendations regarding obtrusive light that would affect this site. We would therefore suggest that the guidance given by the ILP (Institution of Lighting Engineers) would form the basis of demonstrating compliance with obtrusive lighting criteria.



3.4. Possible effects. The receptors can be subject to four effects of obtrusive light:- • Light Intrusion- Light entering windows Measured in illuminance lux (Ev

.)

• Luminaire Intensity- Glare emitted by unshielded light sources in the direction of the observer, measured in (Cd/m2

).

• Building luminance- Pre-Curfew the brightness of building facades in the direction of the viewer, measured in (Cd/m2

).

• Light Trespass- light entering the boundaries of adjacent properties measured in Lux (Eh

) at the boundary of the site. This value should not exceed 1 lux at the site boundary.

Light Intrusion, Luminaire Intensity and Light Trespass are likely to be the effects identified by the baseline survey.

3.4.1. Obtrusive Light Criteria

Table 2. Obtrusive Lighting limitations for Exterior Lighting Installations – General Observers

Environmental Zone

Sky Glow ULR Max %

Light Intrusion ( into windows) Ev ( lux)

Luminaire Intensity I (cd)

Building Luminance Pre Curfew

Pre curfew

Post curfew

Pre curfew

Post curfew

Average L (cd/m2)

E0 0 0 0 0 0 0 E1 0 2 0(1*) 2,500 0 0 E2 2.5 5 1 7,500 500 5 E3 5.0 10 2 10,000 1,000 10 E4 15 25 5 25,000 2,500 25

(*) Permitted for public road lighting only (source ILP GN01 2011)

3.5. The Survey The purpose of the survey is to ascertain the current situation with regard to obtrusive light that exists on site before works commence. The survey will identify through readings of Iuminance and illuminance the current situation. Up to five photographs will be taken at each point of reference identified on the Lighting Impact Assessment drawing (Located in appendix B). The survey will also check and inform the final report and will correct any inconsistencies/ assumptions in this study. Additional receptor points maybe added as a result of the daytime survey The proposed date of the survey is the 15th-16th

3.5.1. Access Limitations.

August 2012 and will be conducted in the afternoon and early evening 1 hour after sunset.

The survey will be limited to public rights of way and carriageways no attempt will be made to enter private property to take readings or take photographs. The drawing shows the intended measurement positions and these positions maybe altered to suit access restrictions.

3.5.2. Measurement Method The readings will be taken with calibrated measurement equipment and readings will be taken from the boundary of the receptor site or at positions which are as adjacent as possible to the marked point.



3.5.3. Measurement Equipment For the purposes of this survey professional calibrated instruments are required. These meters are will be hired from a specialist scientific instrument supplier. The instruments to be used for this survey are the Konica Minolta Luminance Meter LS-100 and Konica Minolta illuminance Meter T-10.

Figure 1. Ls-100 Luminance Meter

Figure 2. T-10 Iluminance Meter

South Bristol Link Obtrusive Light Desktop Study Appendices

Appendix A. English Heritage Requirements

A.1. English Heritage Letter This letter details the comments that have been received to date

A.2. Ashton Court and All Saints Church Ashton Court

See Key Plan for Location

Long Ashton Court SP 1/1

All Saints Church

SP 1/2

SP 1/3

New Road Line

A.3. Long Ashton and Yanley Conservation Areas See Key Plan for Location

Figure 1. Long Ashton and Yanley Conservation Areas

SP 1/4

SP 1/5

SP 1/6

A.4. Bishopsworth and Malago Conservation area (including Highridge Common)

Figure 2. Bishopsworth & Malago Conservation Area

SP 8/8 SP 8/7

Road Line

SP 8/9

SP 8/11

For Highridge Common see Area 7 Plan

Kings Head lane Pk

SP 8/12

Appendix B. ILP Guidance Note GN01:2011

Guidance Notes for the Reduction of Obtrusive Light GN01:2011

1

GUIDANCE NOTES FOR THE

REDUCTION OF OBTRUSIVE LIGHT

“Think before you light - The right amount of light, where wanted, when

wanted.”

Man's invention of artificial light has done much to safeguard and enhance our night-time

environment but, if not properly controlled, obtrusive light (sometimes referred to as

light pollution) can present serious physiological and ecological problems.

Obtrusive Light, whether it keeps you awake through a bedroom window or impedes your

view of the night sky, is a form of pollution, which may also be a nuisance in law and which

can be substantially reduced without detriment to the lighting task.

Sky glow, the brightening of the night sky, Glare the uncomfortable brightness of a light

source when viewed against a darker background, and Light Intrusion (“Trespass”), the

spilling of light beyond the boundary of the property or area being lit, are all forms of obtrusive light which may cause nuisance to others and waste money and energy. Think

before you light. Is it necessary? What effect will it have on others? Will it cause a

nuisance? How can you minimise the problem?

Figure 1 – Types of obtrusive light

Do not "over" light. This is a major cause of obtrusive light and is a waste of energy. There

are published standards for most lighting tasks, adherence to which will help minimise

upward reflected light. Organisations from which full details of these standards can be obtained are given on the last page of this leaflet.


2

Dim or switch off lights when the task is finished. Generally a lower level of lighting will

suffice to enhance the night time scene than that required for safety and security.

“Good Design equals Good Lighting”

Any lighting scheme will consist of three basic elements: a light source, a luminaire and a method of installation.

Light sources (Lamps)

Remember that the light source output in LUMENS is not the same as the wattage and that it is the former that is important in combating the problems of obtrusive light.

Most nightime visual tasks are only dependant on light radiated within the visual spectrum.

It is therefore NOT necessary for light sources to emit either ultra-violet or infra-red

radiation unless specifically designed to do so. It is also understood that light from the

shorter wavelengths of the spectrum has important effects on both flora and fauna that

should be considered.

Research indicates that light from the blue end of the spectrum has important non-visual

effects on the health of the human body, in particular in our sleep/wake patterns. It is

therefore important to appreciate that while in obtrusive light terms the use of blue light

should be minimised, there are many night-time tasks such as driving and sports where to

be fully awake is an important aid to safety.

Luminaires

Care should always be taken when selecting luminaires to ensure that appropriate products

are chosen and that their location will reduce spill light and glare to a minimum.

Use specifically designed lighting equipment that minimises the upward spread of light near

to and above the horizontal. The most sensitive/critical zones for minimising sky glow are

those between 90o and 100o as shown in Figure 2 and referred to as the lower, upward

light output zone (UL).

Figure 2 – Critical luminaire angles

For minimising sky glow


3

For most sports and area lighting installations the use of luminaires with double-

asymmetric beams designed so that the front glazing is kept at or near parallel to the

surface being lit should, if correctly aimed, ensures minimum obtrusive light.

Appendices 1 and 2 to these notes gives more details of how to choose and if necessary

modify luminaires.

Installation

In most cases it will be beneficial to use as high a mounting height as possible, giving due

regard to the daytime appearance of the installation. The requirements to control glare for

the safety of road users are given in Table 3.

Keep glare to a minimum by ensuring that the main beam angle of all lights directed

towards any potential observer is not more than 70o. Higher mounting heights allow lower

main beam angles, which can assist in reducing glare. In areas with low ambient lighting

levels, glare can be very obtrusive and extra care should be taken when positioning and

aiming lighting equipment. With regard to domestic security lighting the ILP produces an

information leaflet GN02:2009 that is freely available from its website.

Figure 3 – Luminare aiming angles

Poor Okay Good

When lighting vertical structures such as advertising signs, direct light downwards wherever possible. If there is no alternative to up-lighting, as with much decorative lighting

of buildings, then the use of shields, baffles and louvres will help reduce spill light around

and over the structure to a minimum.

For road and amenity lighting installations, (see also design standards listed on Page 5)

light near to and above the horizontal should normally be minimised to reduce glare and sky glow (Note ULR’s in Table 2). In rural areas the use of full horizontal cut off luminaires

installed at 0o uplift will, in addition to reducing sky glow, also help to minimise visual

intrusion within the open landscape. However in some urban locations, luminaires fitted

with a more decorative bowl and good optical control of light should be acceptable and may

be more appropriate.


4

Figure 4 – Façade Illumination

Poor Good Good

Since 2006 “Artificial Light” has been added to the list of possible Statutory Nuisances in

England, Wales and Scotland. The monitoring of such nuisances will be the responsibility

of Environmental Health Officers (EHOs) for which separate guidance is being produced.

With regard to the planning aspect, many Local Planning Authorities (LPAs) have already

produced, or are producing, policies that within the planning system will become part of

their local development framework. For new developments there is an opportunity for LPAs

to impose planning conditions related to external lighting, including curfew hours.

The Scottish Executive has published a design methodology document (March 2007) entitled “Controlling Light Pollution and Reducing Energy Consumption” to further assist in

mitigating obtrusive light elements at the design stage.

ENVIRONMENTAL ZONES

It is recommended that Local Planning Authorities specify the following environmental

zones for exterior lighting control within their Development Plans.

Table 1 – Environmental Zones

Zone Surrounding Lighting

Environment

Examples

E0 Protected Dark UNESCO Starlight Reserves, IDA Dark Sky

Parks

E1 Natural Intrinsically dark National Parks, Areas of Outstanding

Natural Beauty etc

E2 Rural Low district brightness

Village or relatively dark outer suburban

locations

E3 Suburban Medium district

brightness

Small town centres or suburban locations

E4 Urban High district

brightness

Town/city centres with high levels of night-

time activity

http://www.scotland.gov.uk/Publications/2007/03/14164512/0


5

Where an area to be lit lies on the boundary of two zones the obtrusive light limitation

values used should be those applicable to the most rigorous zone.

NB: Zone E0 must always be surrounded by an E1 Zone.

DESIGN GUIDANCE

The following limitations may be supplemented or replaced by a LPA’s own planning

guidance for exterior lighting installations. As lighting design is not as simple as it may

seem, you are advised to consult and/or work with a professional lighting designer before

installing any exterior lighting.

Table 2 – Obtrusive Light Limitations for Exterior Lighting Installations – General Observers

Environment

al Zone

Sky Glow

ULR

[Max %](1)

Light Intrusion

(into Windows)

Ev [lux] (2)

Luminaire Intensity

I [candelas] (3)

Building

Luminance

Pre-curfew (4)

Pre-

curfew

Post-

curfew

Pre-

curfew

Post-

curfew

Average,

L [cd/m2]

E0 0 0 0 0 0 0

E1 0 2 0 ( 1*) 2,500 0 0

E2 2.5 5 1 7,500 500 5

E3 5.0 10 2 10,000 1,000 10

E4 15 25 5 25,000 2,500 25

ULR = Upward Light Ratio of the Installation is the maximum permitted

percentage of luminaire flux that goes directly into the sky.

Ev = Vertical Illuminance in Lux - measured flat on the glazing at the centre of

the window.

I = Light Intensity in Candelas (cd)

L = Luminance in Candelas per Square Metre (cd/m2)

Curfew = the time after which stricter requirements (for the control of

obtrusive light) will apply; often a condition of use of lighting applied by the local planning authority. If not otherwise stated - 23.00hrs is suggested.

* = Permitted only from Public road lighting installations

(1) Upward Light Ratio – Some lighting schemes will require the deliberate and careful use of upward light, e.g. ground recessed luminaires, ground mounted floodlights,

festive lighting, to which these limits cannot apply. However, care should always be

taken to minimise any upward waste light by the proper application of suitably

directional luminaires and light controlling attachments.


6

(2) Light Intrusion (into Windows) – These values are suggested maxima and need

to take account of existing light intrusion at the point of measurement. In the case of

road lighting on public highways where building facades are adjacent to the lit

highway, these levels may not be obtainable. In such cases where a specific

complaint has been received, the Highway Authority should endeavour to reduce the

light intrusion into the window down to the post curfew value by fitting a shield,

replacing the luminaire, or by varying the lighting level.

(3) Luminaire Intensity – This applies to each luminaire in the potentially obtrusive

direction, outside of the area being lit. The figures given are for general guidance

only and for some sports lighting applications with limited mounting heights, may be

difficult to achieve.

(4) Building Luminance – This should be limited to avoid over lighting, and related to

the general district brightness. In this reference building luminance is applicable to

buildings directly illuminated as a night-time feature as against the illumination of a

building caused by spill light from adjacent luminaires or luminaires fixed to the

building but used to light an adjacent area.

TI = Threshold Increment is a measure of the loss of visibility caused by the

disability glare from the obtrusive light installation

Lv = Veiling Luminance is a measure of the adaptation luminance caused by the

disability glare from the obtrusive light installation

(1) = Road Classifications as given in BS EN 13201 - 2: 2003 Road lighting

Performance requirements. Limits apply where users of transport systems are subject to a reduction in the ability to see essential information. Values given

are for relevant positions and for viewing directions in path of travel. For a

more detailed description and methods for determining, calculating and

measuring the above parameters see CIE Publication 150:2003.

Table 3 – Obtrusive Light Limitations for Exterior Lighting

Installations – Road Users

Road

Classification (1)

Threshold Increment (TI) Veiling

Luminance (Lv)

No road lighting 15% based on adaptation

luminance of 0.1cd/m2

0.04

ME6/ ME5

15% based on adaptation

luminance of 1cd/m2

0.25

ME4/ ME3


luminance of 2cd/m

0.40

ME2 / ME1


luminance of 5cd/m2

0.84


7

RELEVANT PUBLICATIONS AND STANDARDS:

British Standards: BS 5489-1: 2003 Code of practice for the design of road lighting – Part 1: Lighting

www.bsi.org.uk of roads and public amenity areas

BS EN 13201-2:2003 Road lighting – Part 2: Performance requirements BS EN 13201-3:2003 Road lighting – Part 3: Calculation of performance

BS EN 13201-4:2003 Road lighting – Part 4: Methods of measuring lighting

performance. BS EN 12193: 1999 Light and lighting – Sports lighting

BS EN 12464-2: 2007 Lighting of work places – Outdoor work places

Countryside Commission/ Lighting in the Countryside: Towards good practice (1997) (Out of Print but DOE available on www.communities.gov.uk/index.asp?id=1144823)

UK Government / Defra Statutory Nuisance from Insects and Artificial Light – Guidance on Sections 101 to www.defra.gov.uk 103 of the Clean Neighbourhoods and Environment Act 2005

Road Lighting and the Environment (1993) (Out of Print)

CIBSE/SLL Publications: CoL Code for Lighting (2002) www.cibse.org LG1 The Industrial Environment (1989)

LG4 Sports (1990+Addendum 2000)

LG6 The Exterior Environment (1992)

FF7 Environmental Considerations for Exterior Lighting (2003)

CIE Publications: 01 Guidelines for minimizing Urban Sky Glow near Astronomical Observatories

(1980) www.cie.co.at 83 Guide for the lighting of sports events for colour television and film systems

(1989)

92 Guide for floodlighting (1992) 115 Recommendations for the lighting of roads for motor and pedestrian traffic –

Second Edition (2010)

126 Guidelines for minimizing Sky glow (1997) 129 Guide for lighting exterior work areas (1998)

136 Guide to the lighting of urban areas (2000)

150 Guide on the limitations of the effect of obtrusive light from outdoor lighting installations (2003)

154 The Maintenance of outdoor lighting systems (2003)

ILP Publications: TR 5 Brightness of Illuminated Advertisements (2001) www.theilp.org.uk TR24 A Practical Guide to the Development of a Public Lighting Policy for Local

Authorities (1999)

GN02 Domestic Security Lighting, Friend or Foe

ILP/CIBSE Joint Lighting the Environment - A guide to good urban lighting (1995)

Publications

ILP/CSS Joint Code of Practice for the installation, maintenance and removal of seasonal

Publications decorations. (2005)

ILP/CfDS Joint Publication Towards Understanding Sky glow. 2007

www.dark-skies.org

IESNA www.iesna.org TM-15-07 (R) Luminaire Classification System for Outdoor luminaires

NB: These notes are intended as guidance only and the application of the values given in Tables 2 & 3 should be given due consideration along with all other factors in the lighting design. Lighting is a complex subject with both objective and subjective criteria to be considered. The notes are therefore no substitute for professionally assessed and designed lighting,

where the various and maybe conflicting visual requirements need to be balanced.

© 2011 The Institution of Lighting Professionals. Permission is granted to reproduce and distribute this document, subject to the restriction that the complete document must be copied, without alteration, addition or deletion.

http://www.dark-skies.org/


8

APPENDIX 1 - PROPOSED OUTDOOR LUMINAIRE CLASSIFICATION SYSTEM

Variable Aim Luminaires – General Classifications:

Proposed labelling System:

Fixed Position luminaires Variable Aim Luminaires (Shown here for a 45o Double-Asymmetric

luminaire aimed at 70o – with and without a cowl).


9

APPENDIX 2 - ILLUSTRATIONS OF LUMINAIRE ACCESSORIES FOR LIMITING

OBTRUSIVE LIGHT (images provided by Philips and Thorn)

Cowl (or Hood)

External Louvre

SHIELD

SHEILD “Barn Doors”

Double Asymmetric Luminaire

Simple Hood


10

Circular Louvre

Cowl & Louvre

Internal Louvre (horizontal)

Internal Louvre (vertical)

Appendix C. Drawings

C.1. Receptors Locations by Site Area

SP 2/2

RobinsTimber

A & J Timber

SP 2/1

SP 4/1

Rose Meadow View

SP 6/1

Castle farm

Lit road

Highridge Common

SP7/7

SP7/6

Presbytery

SP 1/4

SP 10/13

Appendix D. Survey Data Table

South Bristol Link Road Light Survey Results Table 5103087

August 2012

Survey Point

Location Day time Photo file reference

Comments Night time photo file reference

Comments Vertical illuminance Pt

Luminance Pt

Horiz illuminance

Luminance Pt 2

Comments

1/1 Ashton Court in front of House

DSC3031 Intrinsically dark environment

DSC3065

0.16

0.18

DSC3030 DSC3064

DSC3029 DSC3063

DSC3028

1/2 Ashton Court in at Bottom of Garden

DSC3034 Floodlight at distance

DSC3069

0.4

0.078

0.03

DSC3033 DSC3068

DSC3032 DSC3067

DSC3066

1/3 All Saints Church DSC3035 At base of pine tree (entry to church)

DSC3073

0.11

0.11

DSC3036 DSC3072

DSC3037 DSC3071

DSC3038 DSC3070

1/4 Bourton Mead

DSC3042 Long Ashton road footpath

DSC3074 Street Lamp Local Hence high illuminance reading

0.28

488

0.10

DSC3041

DSC3040

DSC3039

1/5 A370 Yanley

Lane intersection

DSC3049 Opposite long Ashton

Business park

DSC3079 Photos taken near farm

1.25

3.17

DSC3048 DSC3078

DSC3047 DSC3077

DSC3046 DSC3076

DSC3045 DSC3075

1/6 Yanley Last

House

DSC3052 End of style farm

DSC3083

Luminance sodium/MH

floods

0.02

0.11/4.55

0.02

DSC3051 DSC3082

DSC3050 DSC3081

DSC3080


August 2012

Survey Point




Luminance Pt

Horiz illuminance

Luminance Pt 2

Comments

2/1

Brookgate (A+J

Timbers)

3061 Photo taken over gate next to Mass developments

3086

2.20

0.20

3060 3087

3059 3088

2/2

Ashton Drive

3058 Field behind houses 10 yards from

lampost

3091

0.03

25.05

floodlight

0.02

3057 3090

3056 3089

3055

3054

3/1

Rose meadow View

3062

From Bridge gate

3085

3.14

3.15


August 2012

Survey Point




Luminance Pt

Horiz illuminance

Luminance Pt 2

Comments


August 2012

Survey Point




Luminance Pt

Horiz illuminance

Luminance Pt 2

Comments

6/1

Castle Farm

(The Meadows)

3094 3165

0.33

0.88

3093 3164

3092 3163

3162


August 2012

Survey Point




Luminance Pt

Horiz illuminance

Luminance Pt 2

Comments

7/1

Highridge Green road

3097 Photo taken

infront of house No.133

3178

1.52

0.93

3096 3177

3095 3176

7/2

Highridge Green

road

3101 Highridge cottage

3179

4.7

3.25

3100 3180

3099 3181

7/3

Highridge Green

road

3011 Brunel and

Son builders

3184

4.24

2.3

3010 3183

3109 3182

3108

7/4

House on Highridge Common

3099 3175

0.13

0.71

3100 3174

3101 3173

3172

7/5

Highridge Common

3114 3187

0.13

0.23

3113 3186

3112 3185


August 2012

Survey Point




Luminance Pt

Horiz illuminance

Luminance Pt 2

Comments

8/1

Highridge

common (King Georges Road)

3122 Photo taken

infront of house No. 30

3188

1.42

0.63

8/2

Highridge


3123 Photo taken


3189

4.27

2.6

8/3

Highridge common (King Georges Road)

3124 Photo taken


3190

2.55

3.07

3126

8/4

Highridge road (King Georges Road Junction

3127 Photo taken


3193

0.67

Readings taken

at gate

0.37

8/5

Highridge common (King Georges Road)

3126 Photo taken


3192

0.37

0.33


August 2012

Survey Point




Luminance Pt

Horiz illuminance

Luminance Pt 2

Comments

8/6

Highridge


3125 Photo taken

infront of house No.77

3191

1.77

0.60

8/7

Bishopsworth/Malago (Highridge

common)

3120

Highridge UFC (No view)

Valley/Trees

3119

3118

8/8

Bishopsworth Conservation

3121 Manor wood

Tree/river obstruction

3167

0.02

0.05

8/9

The Malago Conservation

NIL

8/10

Crosscombe Drive

3117 3242

0.38

2.49

3116

3115


August 2012

Survey Point




Luminance Pt

Horiz illuminance

Luminance Pt 2

Comments

Survey Point




Luminance Pt

Horiz illuminance

Luminance Pt 2

Comments

9/1

Queens road King Georges road junction

3128 Photo taken near near log

wall home

3194

3.25

3.11

9/2

Queens Head

pub

3130

3196

11.80

10.68

9/3


3126 Photo taken near near log

wall home

3195

0.57

0.46

9/4


3194 2.07

19.7


August 2012

Survey Point




Luminance Pt

Horiz illuminance

Luminance Pt 2

Comments

9/5

Proposed

Road

3133 One window to side of

property

3206

0.09

0.06

3205

9/6

Proposed

Road

3134 3208

0.05

0.06

3207

9/7

9/8

Gatehouse Road

Gatehouse Road

3138 Two windows

to side of property

3213 0.04

1.04

0.10

0.31

3214

3139 3219

3218

9/9

Gatehouse Road

3141 Eight window

to side of property

3222

0.81

0.25

3223

9/10

Gatehouse Road

3144 Two redbrick

properties

3224 0.65

0.22

3225

9/11

Comleaze

3142 3226

1.43

0.22

3227


August 2012

Survey Point




Luminance Pt

Horiz illuminance

Luminance Pt 2

Comments

9/12

Selley walk

3146 3220

1.22

0.27

3221

9/13

Goulston Road/Selley

walk

3137 3216

0.16

0.11

3217

9/14

Goulston Road

3136 3211

0.60

0.10

3212

9/15

Waverly Home (Old peoples

home)

3131 3199

0.11

0.12

3198

9/16

NiL

9/17

Red house

office

3143 3210

2.05

0.65

3209


August 2012

Survey Point




Luminance Pt

Horiz illuminance

Luminance Pt 2

Comments

10/1

Hareclive road Stop/1 South

10/2


10/3


10/4

Hareclive road Stop/4 North

3147 3231

0.34

0.15

3148 3230

3149 3229

3150 3228

10/5


10/6



August 2012

Survey Point




Luminance Pt

Horiz illuminance

Luminance Pt 2

Comments

10/7


3119 3233

0.55

0.18

3120 3232

10/8


10/9

Hareclive

Road

3151 Photo taken


3238

1.84

1.6

10/10

Off Hareclive

road

3152 Photo taken infront of

house No. 22

3239

0.34

1.02

10/11

Off Hareclive road

3153 3240

11.03

4.82

10/12

Off Hareclive road

3154 3241

2.52

1.20

Report

Ref

Cater road Panorama

3157

3156

3155


August 2012

Survey Point




Luminance Pt

Horiz illuminance

Luminance Pt 2

Comments

Report

Ref

Hareclive

Roundabout

3161

3160

3159

3158


August 2012

Survey Point




Luminance Pt

Horiz illuminance

Luminance Pt 2

Comments

© Atkins Ltd except where stated otherwise. The Atkins logo, ‘Carbon Critical Design’ and the strapline ‘Plan Design Enable’ are trademarks of Atkins Ltd.

David Mooney Atkins Woodcote Grove Ashley Road Epsom KT18 5BW

[email protected]

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