ss8a - street lighting design manual

CORPORATION OF THE CITY OF BURLINGTON

SPECIFICATIONS

INDEX FOR

STREET LIGHTING & CONDUIT

Street Lighting Design Manual(SPEC NO.: SS08A)

To be read in conjunction withSTREET LIGHTING & CONDUIT

MATERIAL SPECIFICATIONS

(SPEC NO.: SS08B)Issued April 2008

INDEX1. Street Lighting Design and Installation Requirements .......................................................... 21.1 Glossary: ............................................................................................................................. 21.2 General: .............................................................................................................................. 31.3 Replacement and Upgrade Policy: .................................................................................... 31.4 Downtown Lighting Policy: .............................................................................................. 42. IES Illuminance and Luminance Design Criteria .................................................................. 4Maintained Illuminance Values for Sidewalks .......................................................... 52.1 Maximum Recommended Spacings for Street Lighting on the City ofBurlington’s Standard Sections......................................................................................... 52.2 Maximum Recommended Spacings for Decorative Street Lights on the Cityof Burlington’s Standard Sections: ................................................................................... 72.3 Lighting for Urban Intersections ....................................................................................... 82.4 ESA Lighting Design Requirements................................................................................. 82.5 Curves and Hills ................................................................................................................. 92.6 Culs-de-sac ......................................................................................................................... 92.6.1 Lighting in Culs-de-sac........................................................................................................ 91. Street Lighting Design and Installation Requirements1.1 Glossary:ANSI/IESNA RP-8-00 - Illuminating Engineering Society of North America's AmericanNational Standard Practice for Roadway Lighting, issued June 27,2000 and reaffirmed in 2005Luminance Design – A design based on the amount of light which is reflected from asurface and reaches the eye of the observer. It is based on the “light” the observer sees at a given point and is based on the reflectance of the surface and the angle and distance of the observer from the point observed. See RP-8-00, Annex G. page 57 for further information on luminance.Illuminance Design - A design based on the amount of light which incident on asurface. Illuminance ignores the surface upon which the light falls. SeeRP-8-00, Annex G. page 56 for further information on illuminance.Pedestrian Conflict AreaClassification – Road classifications describe general conditions of vehicular traffic conflict in urban areas. A second type of conflict is the vehicular/pedestrian interaction. Pedestrian activity is nearly always related to the adjacent land uses. There are three levels of pedestrian conflict used by RP-8-00, high, medium and low. For the purposes of this manual, the pedestrian conflict level is assumed to be low or medium (adjacent to schools only) unless otherwise determined by the City. High PC Areas are areas with significant numbers of pedestrians on the sidewalks or crossing the streets during darkness. Examples are downtown retail areas, areas near theatres, concert halls stadiums and transit terminals. Medium PC Areas are areas where fewer pedestrians use the streets at night. Examples are downtown office areas, areas with libraries, apartments, neighbourhood shopping and streets with transit lines. Low PC Areas are areas with low volumes of pedestrian traffic at night. Examples are suburban streets, low density developments and rural or semi-rural areas. See RP-8-00, pages 4 & 5 and 9 & 10 for further information of pedestrian conflict classifications.PavementClassifications – Luminance calculations require information about the directional surface reflectance of the pavement. There are four general pavement classifications given in RP-8-00;R1, which is concrete or old asphalt pavement,coloured aggregate,R3, which is asphalt with a normal aggregate mix and normal age and wear – this is the typical road classification for roads and the pavement classification to be used in Burlington unless otherwise directed by the City.1.2 General:

0.3

0.4

0.4

0.6

0.3

0.4

Street lighting design in the City of Burlington shall be generally based on ANSI/IESNA RP -8-00. Modifications to RP-8-00 have been made in certain areas to better conform to the City’srequirements. This manual shall be used together with RP-8 (latest revision).Street lighting design in Burlington must provide uniform lighting at a level that is adequate andcomfortable for vehicular and pedestrian movement on the City’s roads and sidewalks. All street lighting systems in the City of Burlington shall be designed by a qualified lighting designer using the luminance method as described in RP-8-00 (unless noted otherwise), as well as incorporating both the City’s and Burlington Hydro’s standards and specifications as given below. Street lighting design in Burlington must take into consideration all of the approved luminaires of a given type in order to allow interchangeability of luminaires during maintenance operation s.Recommended maximum spacings or arrangements given in the following sections are to beused for the specific cross section or road layout shown. Variations in cross section, road layout and/or pedestrian conflict levels must be dealt with on an individual design basis and a specific lighting design and its associated calculations must be submitted to the City for review.It is the responsibility of the street lighting designer to ensure they have the latest revisions of theCity of Burlington’s street lighting standards and specifications and a current list of approved suppliers prior to designing the street lighting system.As of January 1, 2003, all street lighting design and construction is subject to ESA inspectionand approval. All materials used for street lighting in the City of Burlington must meet CSAspecifications.Decorative street lighting may be used in the City only with the City’s permission and inaccordance with the City’s requirements and specifications.1.3 Replacement and Upgrade Policy:New installations shall be designed and constructed in accordance with thespecifications contained in this manual wherever possible. Where the designer wishes to use materials or specifications not contained in this manual, he must first contact the City to obtain their approval.etc. shall be replaced with materials in accordance with the new standards.1.4 Downtown Lighting Policy:It is the policy of the City that all street and sidewalk lighting design shall be based on ANSI /IESNA RP-8-00 as referred to above.All lighting designs for the downtown area must be submitted to the City for review with thenecessary back-up material. Shop drawings, lighting design data, cross sections, etc. must be provided. Where the City’s standard cross sections are not applicable, the designer shall submit the appropriate road cross section(s) and the proposed road and pedestrian conflict classifications to the City for review. No design shall proceed without the City’s approval of the road and pedestrian conflict classifications.2. IES Illuminance and Luminance Design CriteriaThe design requirements for luminance and illuminance given below in Tables 1 and 2 are takenfrom ANSI/IES RP-8-00. The values given for luminance shall govern; the values given for illuminance are for use in intersection and sidewalk designs. For the purposes of lighting design in the City of Burlington, it was assumed that the pedestrian conflict area classification area is low. All roads requiring a medium or higher pedestrian conflict designation will require the preparation and submission of a suitable design to the City for review.TABLE 1: LUMINANCE DESIGN CRITERIA FOR STANDARD ROADS

Road and Area Classification

Average Maintained Luminance

(cd/m2)

Maximum LuminanceUniformity Ratios

MaximumVeiling

Luminance Ratios

Lmax to Lmin Lave to Lmin Lv to Lave

Local Residential Roads (IES Local – Low1) Standard Cross Sections S-15, S-16, S-17, S-18 &S20 (8m pavement)

10 to 1 6 to 1 0.4 to 1

Residential Collector Roads (IES Collector –Low1) Standard Cross Sections S-19, S-20 (9m pavement) & S-26R

8 to 1 4 to 1 0.4 to 1

Employment Collector Roads (IES Collector– Low1) Standard Cross Sections S-20 (9m pavement) & S-26E

8 to 1 4 to 1 0.4 to 1

Arterial Roads (IES Major – Low1) StandardCross Sections S-30 & S-35

6 to 1 3.5 to 1 0.3 to 1

Rural Local Residential Road (IES Local –Low 1) Standard Cross SectionS-20-RURAL

10 to 1 6 to 1 0.4 to 1

Rural Collector Road (IES Collector – Low1)Burlington Standard Cross Section S-26- RURAL

8 to 1 4 to 1 0.4 to 1

Note 1. Pedestrian Conflict Area Classification as defined in ANSI/IES RP-8-00 inparagraph 2.2 on page 4. The only standard exception to the low PCC used in lighting calculations in the City is in school zones, where a medium PCC shall be used.TABLE 2: ILLUMINANCE DESIGN CRITERIA FOR INTERSECTIONS, CULS-DE-

4

6

6

9

4

6

3

SAC AND SIDEWALKS

Road and Area Classification

Minimum AverageMaintained Illuminance

(horizontal only 3) (R2 & R3 Pavements 2) Eave in lux

Maximum Illuminance Uniformity Ratio Eave to Emin

Local Residential Roads (IES Local – Low1)Standard Cross Sections: S-15, S-17, S-18 & S-20 (8m pavement)

6 to 1

Residential Collector Roads (IES Collector – Low1)Standard Cross Sections: S-19, S-20 & (9m pavement) & S-26R

4 to 1

Employment Collector Roads (IES Collector – Low1)Standard Cross Section: S-26E & S-20 (9m pavement)

4 to 1

Arterial Roads (IES Major – Low1)Standard Cross Sections: S-30 & S-35

3 to 1

Rural Local Residential (IES Local – Low1) StandardCross Section S-20-RURAL

6 to 1

Rural Collector Road (IES Collector – Low1) StandardCross Section S-26-RURAL

4 to 1

Maintained Illuminance Values for SidewalksLow Density Residential 6 to 1Note 1. Pedestrian Conflict Area Classification as defined in ANSI/IES RP -8-00 in paragraph2.2 on page 4.Note 2. Pavement Classification as defined in ANSI/IES RP-8-00 in Table1, pg. 5.Note 3. Meeting the IES Evmin specification (minimum vertical illuminance at 1.5 metres above the sidewalk/bikeway measured in both directions parallel to the main pedestrian flow) is not being required by the City at this time. It is the opinion of the City that the need for this level of lighting on the sidewalks is excessive for a City like Burlington and the spacings needed to meet this requirement are excessively short.2.1 Maxi mu m R e c o m me nde d S pac i ng s fo r Str e e t Lig hting o n the C ity o f Bur li ng to n’s Standard SectionsUsing the luminaire/pole combinations listed in Table 5 under Equipment Specifications, thetable below gives the maximum allowable spacings for flat glass "cobra-head" street lights for straight sections, gradual curves and gently sloping grades for single sided, two sided staggered and two sided opposite arrangements.The spacings given below are to be used for the design of street lighting on residential streetshaving the same dimensions for the essential items of the road cross section indicated, i.e.,pavement width, luminaire offset and sidewalk width and offset. Variations in any of theseessential items, such as pavement width in or near intersections, must be dealt with on an individual design basis and a specific lighting design and its associated calculations must be submitted to the City for review.The Light Loss Factor (LLF) used for the spacings in Tables 3 and 4 is 0.77.TABLE 3: MAXIMUM RECOMMENDED SPACINGS ON STRAIGHT SECTIONSFOR FLAT GLASS “COBRA-HEAD” STREET LIGHTSLuminaireWattage

Type of R.O.W.Burlington Standard Cross Section Number

Single SidedSpacing

Two SidedSpacing; Staggered

100 wattHPS

15 m Minor Local Residential - Standard S-15 43 m 43 m

100 wattHPS

17 m Minor Local Residential - Standard S-17 43 m 43 m

100 wattHPS

18 m Local Residential - Standard S-18 42 m 42 m

100 wattHPS

20 m Local Residential - Standard S-20 (8m pavement) 41 m 41 m

100 wattHPS

20 m Rural Local Residential - StandardS-20-RURAL1,7

54 m 54 m

100 wattHPS

20 m Rural Local Residential – StandardS-20-RURAL (with Hydro pole line) 1,4,7

53 m 53 m

150 wattHPS

19 m Residential Collector - Standard S-19 41 m 48 m

150 wattHPS

20 m Residential Collector – Standard S-20 (9mpavement)

41 m 48 m

150 wattHPS

26 m Residential Collector - Standard S-26R NotRecommended

40 m

150 wattHPS

20 m Industrial Collector - Standard S-20 (9m pavement with Hydro pole line 2)

41 m 48 m

150 wattHPS

26 m Employment Collector - Standard S-26E NotRecommended

37 m

150 wattHPS

26 m Employment Collector - Standard S-26E (with Hydro pole line) 3

NotRecommended

NotRecommended

150 wattHPS

26 m Rural Collector - Standard S-26-RURAL (with Hydro pole line) 4,6,8

60 m 58 m

200 wattHPS

30 m Arterial Road - Standard S-30 (4-lanepavement; 1.5 m sidewalks)

NotRecommended

46 m

200 wattHPS

30 m Arterial Road - Burlington Standard S-30(4-lane pavement; withHydro pole line) 5

NotRecommended

NotRecommended

200 wattHPS

35 m Arterial Road - Standard S-35(4-lane pavement)

NotRecommended

40 m

200 wattHPS

35 m Arterial Road - Standard S-35(5-lane pavement)

NotRecommended

37 m

200 wattHPS

35 m Arterial Road - Standard S-35(4-lane pavement; with Hydro pole line) 5

NotRecommended

NotRecommended

200 wattHPS

35 m Arterial Road - Standard S-35(5-lane pavement; with Hydro pole line) 5

NotRecommended

NotRecommended

Note 1. Based on 0.8 m grade difference between road and pole location in the ditchNote 2. Assuming hydro pole mounting height of 6.4 m for high-rise brackets, or 7.6 m for regular 1.8 m elliptical brackets.Note 3. Assuming hydro pole mounting height of 7.1 m for high -rise brackets, or 8.0 m forregular 2.4 m elliptical brackets.Note 4. Assuming hydro pole mounting height of 7.8 m for high-rise brackets and a standard2.4 meter bracket on the 10.7 m street light poles.Note 5. Assuming hydro pole mounting height of 7.6 m for high-rise brackets. Note 6. Spacing for Cooper OVF – type 3 luminaire only (curve #767456.IES)Note 7. Spacing for Cooper OVH – type 3 luminaire only (curve #OVH10S3D.IES)Note 8. Based on 0.9 m grade difference between road and pole location, assuming modified pole offset of 4.5 m from streetline.2.2 Maximum Recommended Spacings for Decorative Stree t Lights on the City of Bur li ng to n’s Sta nd ar d Se c tio ns : Using the decorative luminaire/pole combinations listed in Table 6, the table below gives themaximum allowable spacings for decorative street lights for straight sections, gradual curves and gently sloping grades for single sided and two sided, staggered arrangements.TABLE 4: MAXIMUM RECOMMENDED SPACINGS ON STRAIGHT SECTIONSFOR DECORATIVE STREET LIGHTSLuminaireWattage

Type of R.O.W.Burlington Standard Cross SectionNumber

Single SidedSpacing


Two SidedSpacing; Opposite

100 wattHPS

15 m Minor Local Residential - StandardS-15

37 m 39 m NotRecommended

100 wattHPS

17 m Minor Local Residential - StandardS-17


100 wattHPS

18 m Local Residential- Standard S-18


100 wattHPS

20 m Local Residential- Standard S-20 (8m pavement)

NotRecommended

39 m NotRecommended

100 wattHPS

20 m Rural Local Residential - Standard S-20-RURAL 1,4


150 wattHPS

19 m Residential Collector – Standard S-19 38 m 52 m 60 m

150 wattHPS

20 m Residential Collector - Standard S-20(9m pavement)

37 m 52 m 60 m

150 wattHPS

26 m Residential Collector – Standard S-26R

NotRecommended

38 m 51 m

150 wattHPS

26 m Employment Collector - Standard S-26E

NotRecommended

41 m 52 m

150 wattHPS

26 m Employment Collector - Standard S-26E (with Hydro pole line) 2, 3

NotRecommended

NotRecommended

64 m

150 wattHPS

26 m Rural Collector - Standard S-26- RURAL 4,5


Table 4: ContinuedLuminaireWattage

Type of R.O.W.Burlington Standard Cross SectionNumber

Single SidedSpacing



N/A 30 m Arterial Road - Standard S-30 NotRecommended

NotRecommended

NotRecommended

N/A 35 m Arterial Road - Standard S-35 NotRecommended

NotRecommended

NotRecommended

Note 1. Based on 0.8 m grade difference between road and pole location in the ditch.Note 2. Assuming 7.1 m bracket mounting height on Hydro poles.Note 3. The street lights on the hydro poles shall be 150 watt flat glass cobra -head luminaires(S/L part #BSL-02-02, latest revision), mounted on high rise brackets (S/L part #BSL-

03-03).

Note 4. Using a 10.7 meter pole due to ditch.

Note 5. Based on 0.9 m grade difference between road and pole location, assuming modified pole offset of 4.5 m from streetline.

2.3 Lighting for Urban IntersectionsThe luminance method is difficult to use with the design of lighting for intersections due to thebasic assumptions inherent in luminance design and the methods used in its calculation. Therefore illuminance criteria and calculations are recommended for use in the design of intersections. Intersections should be illuminated to a level equal to the sum of the recommended average illumination levels for each of the intersecting roads. These levels are given in Table 2, above. The pedestrian conflict classification of “low” is included in the illumination levels given in table 2. No further adjustment of lighting levels is required due to pedestrian conflict classifications unless a higher classification is chosen.Typical lighting layouts for intersections are given in ANSI/IES RP -8-00 in Annex “D”, FigureD3 on page 40.2.4 ESA Lighting Design RequirementsThe new ESA regulations that came into effect as of January 1, 2003 are intended to separate thestreet lighting system from the electrical distribution system and to allow parties other than the local distribution company to maintain the street lights.In order to accomplish this, the lighting designer must place a service entrance rated disconnectbetween the electrical distribution system and the street lighting system. The method approved by the City of Burlington at this time is to run an appropriately sized service cable to a street light pedestal (see City of Burlington Dwg. No. S-156) and from there to the individual street lighting circuits.A maximum of a 5% voltage drop will be allowed in the street lighting cable from thetransformer to the last light in the circuit.All materials, including the secondary service to the disconnect switch, must be CSA approvedand will be subject to ESA inspection and approval.2.5 Curves and HillsTables 3 and 4, Maximum Spacings on Straight Sections for the two types of luminaire/polecombinations, are to be used on relatively straight and level sections only. When lighting curves and/or hills, the spacings in the aforementioned tables should be modified in accordance with the procedures given in ANSI/IES RP-8-00 in Annex “D”, Figure D2 on page 39.2.6 Culs-de-sacThere are several design problems to be dealt with when designing lighting for the end (bulb) ofculs-de-sac. They are:the area to be lit is not readily adaptable to the standard luminaires used in Burlington;the space available for the placement of the luminaires/poles is generally quite limited due to the convergence of driveways in the boulevard areas; anddue to the basic assumptions inherent in luminance design and the methods used in i tscalculation, the use of luminance criteria at the ends of culs-de-sac (or any other “dead-end” arrangement) is not recommended. Illuminance criteria and calculations are recommended for use in the design of culs-de-sac, as specified in Table 2.2.6.1 Lighting in Culs-de-sacIt is suggested that lighting in culs-de-sac be arranged in accordance with the sketches givenbelow.Option AOption A consists of a street light placed as close as possible to neck of bulb and a street light tilted at 5° at the top of the bulb at an angle of 0° +/- 5° off the “north” line. The luminaire

wattage and pole size are to match the luminaire/pole combination specified for the type of street. See Table 2 for appropriate illuminance levels.

Option BOption B consists of a street light placed as close as possible to neck of bulb and two street lights tilted at 5° at angles of 45° +/- to 70° +/- from the top centre of the bulb. The luminaire wattage

and pole size are to match the luminaire/pole combination specified for the type of street. See

Table 2 for appropriate illuminance levels.

Designs for street lights using arrangements other than the standard locations given above shallbe accompanied by a full set of lighting calculations for review by the City.

1. Street Lighting Design and Installation Requirements .......................................................... 21.1 Glossary: ............................................................................................................................. 21.2 General: .............................................................................................................................. 31.3 Replacement and Upgrade Policy: .................................................................................... 31.4 Downtown Lighting Policy: .............................................................................................. 42. IES Illuminance and Luminance Design Criteria .................................................................. 4

2.3 Lighting for Urban Intersections ....................................................................................... 82.4 ESA Lighting Design Requirements................................................................................. 82.5 Curves and Hills ................................................................................................................. 92.6 Culs-de-sac ......................................................................................................................... 92.6.1 Lighting in Culs-de-sac........................................................................................................ 9

ANSI/IESNA RP-8-00 - Illuminating Engineering Society of North America's American

Luminance Design – A design based on the amount of light which is reflected from asurface and reaches the eye of the observer. It is based on the “light” the observer sees at a given point and is based on the reflectance of the surface and the angle and distance of the observer from the point observed. See RP-8-00, Annex G. page 57 for further information on luminance.

Classification – Road classifications describe general conditions of vehicular traffic conflict in urban areas. A second type of conflict is the vehicular/pedestrian interaction. Pedestrian activity is nearly always related to the adjacent land uses. There are three levels of pedestrian conflict used by RP-8-00, high, medium and low. For the purposes of this manual, the pedestrian conflict level is assumed to be low or medium (adjacent to schools only) unless otherwise determined by the City. High PC Areas are areas with significant numbers of pedestrians on the sidewalks or crossing the streets during darkness. Examples are downtown retail areas, areas near theatres, concert halls stadiums and transit terminals. Medium PC Areas are areas where fewer pedestrians use the streets at night. Examples are downtown office areas, areas with libraries, apartments, neighbourhood shopping and streets with transit lines. Low PC Areas are areas with low volumes of pedestrian traffic at night. Examples are suburban streets, low density developments and rural or semi-rural areas. See RP-8-00, pages 4 & 5 and 9 & 10 for further information of pedestrian conflict classifications.

Classifications – Luminance calculations require information about the directional surface reflectance of the pavement. There are four general pavement classifications given in RP-8-00;

R3, which is asphalt with a normal aggregate mix and normal age and wear – this is the typical road classification for roads and the pavement classification to be used in Burlington unless otherwise directed by the City.

comfortable for vehicular and pedestrian movement on the City’s roads and sidewalks. All street lighting systems in the City of Burlington shall be designed by a qualified lighting designer using the luminance method as described in RP-8-00 (unless noted otherwise), as well as incorporating both the City’s and Burlington Hydro’s standards and specifications as given below. Street lighting design in Burlington must take into consideration all of the approved luminaires of a given type in order to allow interchangeability of luminaires during maintenance operation s.

used for the specific cross section or road layout shown. Variations in cross section, road layout and/or pedestrian conflict levels must be dealt with on an individual design basis and a specific lighting design and its associated calculations must be submitted to the City for review.It is the responsibility of the street lighting designer to ensure they have the latest revisions of theCity of Burlington’s street lighting standards and specifications and a current list of approved suppliers prior to designing the street lighting system.

Decorative street lighting may be used in the City only with the City’s permission and in

New installations shall be designed and constructed in accordance with thespecifications contained in this manual wherever possible. Where the designer wishes to use materials or specifications not contained in this manual, he must first contact the City to obtain their approval.

necessary back-up material. Shop drawings, lighting design data, cross sections, etc. must be provided. Where the City’s standard cross sections are not applicable, the designer shall submit the appropriate road cross section(s) and the proposed road and pedestrian conflict classifications to the City for review. No design shall proceed without the City’s approval of the road and pedestrian conflict classifications.

from ANSI/IES RP-8-00. The values given for luminance shall govern; the values given for illuminance are for use in intersection and sidewalk designs. For the purposes of lighting design in the City of Burlington, it was assumed that the pedestrian conflict area classification area is low. All roads requiring a medium or higher pedestrian conflict designation will require the preparation and submission of a suitable design to the City for review.

Pedestrian Conflict Area Classification

LOW 1

LOW 1

LOW 1

LOW 1

LOW 1

LOW 1

paragraph 2.2 on page 4. The only standard exception to the low PCC used in lighting calculations in the City is in school zones, where a medium PCC shall be used.TABLE 2: ILLUMINANCE DESIGN CRITERIA FOR INTERSECTIONS, CULS-DE-

Maximum Illuminance Uniformity Ratio Eave to Emin

6 to 1

4 to 1

4 to 1

3 to 1

6 to 1

4 to 1

6 to 1

specification (minimum vertical illuminance at 1.5 metres above the sidewalk/bikeway measured in both directions parallel to the main pedestrian flow) is not being required by the City at this time. It is the opinion of the City that the need for this level of lighting on the sidewalks is excessive for a City like Burlington and the spacings needed to meet this requirement are excessively short.Maxi mu m R e c o m me nde d S pac i ng s fo r Str e e t Lig hting o n the C ity o f Bur li ng to n’s

table below gives the maximum allowable spacings for flat glass "cobra-head" street lights for straight sections, gradual curves and gently sloping grades for single sided, two sided staggered and two sided opposite arrangements.

having the same dimensions for the essential items of the road cross section indicated, i.e.,

essential items, such as pavement width in or near intersections, must be dealt with on an individual design basis and a specific lighting design and its associated calculations must be submitted to the City for review.

TABLE 3: MAXIMUM RECOMMENDED SPACINGS ON STRAIGHT SECTIONS


NotRecommended

NotRecommended

NotRecommended

NotRecommended

NotRecommended

NotRecommended

NotRecommended

NotRecommended

59 m

NotRecommended

59 m

59 m

NotRecommended

70 m

67 m

76 m

74 m

67 m

62 m

Note 2. Assuming hydro pole mounting height of 6.4 m for high-rise brackets, or 7.6 m for regular 1.8 m elliptical brackets.

Note 5. Assuming hydro pole mounting height of 7.6 m for high-rise brackets. Note 6. Spacing for Cooper OVF – type 3 luminaire only (curve #767456.IES)


maximum allowable spacings for decorative street lights for straight sections, gradual curves and gently sloping grades for single sided and two sided, staggered arrangements.TABLE 4: MAXIMUM RECOMMENDED SPACINGS ON STRAIGHT SECTIONS


NotRecommended

NotRecommended

NotRecommended

NotRecommended

NotRecommended

60 m

60 m

51 m

52 m

64 m

NotRecommended


NotRecommended

NotRecommended


basic assumptions inherent in luminance design and the methods used in its calculation. Therefore illuminance criteria and calculations are recommended for use in the design of intersections. Intersections should be illuminated to a level equal to the sum of the recommended average illumination levels for each of the intersecting roads. These levels are given in Table 2, above. The pedestrian conflict classification of “low” is included in the illumination levels given in table 2. No further adjustment of lighting levels is required due to pedestrian conflict classifications unless a higher classification is chosen.

The new ESA regulations that came into effect as of January 1, 2003 are intended to separate thestreet lighting system from the electrical distribution system and to allow parties other than the local distribution company to maintain the street lights.

between the electrical distribution system and the street lighting system. The method approved by the City of Burlington at this time is to run an appropriately sized service cable to a street light pedestal (see City of Burlington Dwg. No. S-156) and from there to the individual street lighting circuits.

combinations, are to be used on relatively straight and level sections only. When lighting curves and/or hills, the spacings in the aforementioned tables should be modified in accordance with the procedures given in ANSI/IES RP-8-00 in Annex “D”, Figure D2 on page 39.

the space available for the placement of the luminaires/poles is generally quite limited due to the convergence of driveways in the boulevard areas; and

calculation, the use of luminance criteria at the ends of culs-de-sac (or any other “dead-end” arrangement) is not recommended. Illuminance criteria and calculations are recommended for use in the design of culs-de-sac, as specified in Table 2.

Option A consists of a street light placed as close as possible to neck of bulb and a street light tilted at 5° at the top of the bulb at an angle of 0° +/- 5° off the “north” line. The luminaire

wattage and pole size are to match the luminaire/pole combination specified for the type of street. See Table 2 for appropriate illuminance levels.

Option B consists of a street light placed as close as possible to neck of bulb and two street lights tilted at 5° at angles of 45° +/- to 70° +/- from the top centre of the bulb. The luminaire wattage

surface and reaches the eye of the observer. It is based on the “light” the observer sees at a given point and is based on the reflectance of the surface and the angle and distance of the observer from the point observed. See RP-8-00, Annex G. page 57 for further information on luminance.


Classifications – Luminance calculations require information about the directional surface reflectance of the pavement. There are four general pavement classifications given in RP-8-00;

R3, which is asphalt with a normal aggregate mix and normal age and wear – this is the typical road classification for roads and the pavement classification to be used in Burlington unless otherwise directed by the City.


used for the specific cross section or road layout shown. Variations in cross section, road layout and/or pedestrian conflict levels must be dealt with on an individual design basis and a specific lighting design and its associated calculations must be submitted to the City for review.

specifications contained in this manual wherever possible. Where the designer wishes to use materials or specifications not contained in this manual, he must first contact the City to obtain their approval.



specification (minimum vertical illuminance at 1.5 metres above the sidewalk/bikeway measured in both directions parallel to the main pedestrian flow) is not being required by the City at this time. It is the opinion of the City that the need for this level of lighting on the sidewalks is excessive for a City like Burlington and the spacings needed to meet this requirement are excessively short.

table below gives the maximum allowable spacings for flat glass "cobra-head" street lights for straight sections, gradual curves and gently sloping grades for single sided, two sided staggered and two sided opposite arrangements.

essential items, such as pavement width in or near intersections, must be dealt with on an individual design basis and a specific lighting design and its associated calculations must be submitted to the City for review.



combinations, are to be used on relatively straight and level sections only. When lighting curves and/or hills, the spacings in the aforementioned tables should be modified in accordance with the procedures given in ANSI/IES RP-8-00 in Annex “D”, Figure D2 on page 39.

calculation, the use of luminance criteria at the ends of culs-de-sac (or any other “dead-end” arrangement) is not recommended. Illuminance criteria and calculations are recommended for use in the design of culs-de-sac, as specified in Table 2.

from the top centre of the bulb. The luminaire wattage

ss8a - street lighting design manual

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