roadway lighting.pdf

8/11/2019 Roadway Lighting.pdf

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3.8. CABLE PITS3.9. REFERENCING CONVENTION FOR SWITCHBOARD, CIRCUIT, POLE AND PI...

4. DOCUMENTATION4.1. ELECTRICAL DESIGN DRAWINGS4.2. AS CONSTRUCTED DRAWINGS

5. DESIGN GUIDELINES DRAWINGS6. APPENDIX A:SPECIFICATIONS FOR HPS LAMPS & IGNITERS7. APPENDIX B-SELECTING A LUMINAIRE TYPE OTHER THAN AN APPROVED P...

1.GENERAL

1.1.PURPOSE

1.2.SCOPE

1.3.REFERENCES

In addition to complying with the technical requirements as outlined herein, and any requirementsor regulations of the Office of Energy, WA, and the regulations of Western Power or other supplyauthorities, all roadway and pathway lighting designs shall comply with the relevant standards listedbelow, including all amendments thereto which are current at the date of the design.

AS 1158.4 - 1987 Supplementary Lighting For Pedestrian Crossings

AS 3145 - 1990 Radio interference suppression devices

AS 3665 - 1989 Simplified definitions of lighting terms and quantities

AS 4139 - 2003 Fibres-reinforced Pipes and Fittings

AS 4282 - 1997 Control of Obtrusive effects of outdoor lighting

AS 1100.101 - 1992Technical Drawing-General Principles (Including Amdt. No. 1-1994)

AS 1100.401 - 1984Technical Drawing-Engineering survey and Engineering surveydesign drawing (Including Amdt. No. 1-1984)

AS/NZS 1158.0 - 2005 Lighting for Roads and public spaces - Introduction.

AS/NZS 1158.1.1 - 2005Lighting for Roads and public spaces - Vehicular traffic (CategoryV) lighting - Performance & installation design requirements.

AS/NZS 1158.1.3 - 1997Road Lighting - Vehicular traffic (Category V) lighting - Guide to

design, installation, operation and maintenance.

AS/NZS 1158.2 - 2005Lighting for Roads and public spaces - Computer procedures forthe calculation of light technical parameters for Category V

Li htin and Cate or P Li htin .

Main Roads will provide roadway and pathway lighting on urban freeways, highways and Control ofAccess Roads with high traffic volumes and Principal Shared Paths for users to travel safely at night.These will be provided in accordance with the requirements of this guideline.

The purpose of this document is to provide design guidelines for lighting for Road and PublicSpaces, where the lighting is being built and maintained by Main Roads.

This Guideline outlines technical requirements for the design of Roadway and Pedestrian Lightingand shared paths, associated Electrical Design, Material and Lighting Software, and Documentation

requirements.

Page 2 of 22Lighting Design Guideline for Roadway and Public Spaces

4/27/2011http://www2.mainroads.wa.gov.au/Internet/Standards/RTems/roadside/lighting_design...


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2.1.GENERALREQUIREMENTS

Definitions of terms provided in AS 3665, AS/NZS 1158.0, AS/NZS 1852.845 and Austroads Parts12 & 14 are applicable under this Guideline.

2.1.1 Survey Background

Survey shall be obtained and show the required data concerning existing or future services at the

site. All such information and data shall be formatted and stored in compliance with Main Roads WASurvey and Mappingrequirements.

2.1.2 Site Constraints

Any existing Utilities, Environmental Heritage and other obstacles, which are a constraint to anycomponents of the preferred lighting design, shall be identified.

2.1.3 Services Relocations

Where the re-location of any above or below ground services and/or obstacles is necessary in thevicinity of the proposed lighting scheme, the appropriate quotations shall be obtained and

considered in the development of the design to ensure that the most economical long term solution

is provided after considering both construction and ongoing costs.

2.1.4 Statutory Constraints

2 . 1 . 4 . 1 Gen e r a l

Statutory limitations on glare, impact of spilled light and lamp colour appearance and any otherspecial local conditions affecting the lighting scheme shall be identified as described in AS/NZS1158.1.3 and AS 4282. In particular, the following authorities shall be consulted where theproposed road lighting may adversely affect the authorities' operations:

2 . 1 . 4 .2 A i r p o r t A u t h o r i t y

For lighting schemes located close to airports, the Australian Civil Aviation Safety Authority and theOperator of the airport shall be consulted for possible interference with the airport's visualnavigation lights, RF equipment and aircraft operations in regard to existing height restrictions.

2 . 1 . 4 .3 R a il w a y A u t h o r i t y

Consultation with the railway Authority in the vicinity of proposed lighting scheme is the

recommended practice as part of the lighting design process, especially with regard to the siting ofthe lighting poles.

2 . 1 . 4 .4 P o r t A u t h o r i t y

Locations in the vicinity of Port Authority require special considerations and the designer shallcontact the Port Authority to arrange for design review or accessing a copy of their conditionsrequired under the design.

Contact details for Fremantle Port Authority is listed below:

Mr. Peter MaresseManager Electrical & Mechanical ServicesFremantle PortsTel: (08) 9430 3385Mobile: 0438 303 499Email: [email protected]

2 . 1 . 4 .5 S p e ci a l R e q u i r em e n t s

Generally, locations requiring special consideration or use of non-standard equipment or




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arrangemen s a e en e n e es gn repor . e es gner s a a se an con rm w ePrincipal on the use of non-standard equipment and arrangement for unusual situations before thefinalisation of the design.

2.1.5 Calculation of Applicable Light Technical Parameters

For calculations of applicable Light Technical Parameters (LTP), refer to AS/NZS 1158.1.1, AS/NZS1158.2, AS/NZS 1158.1.3 and AS/NZS 1158.3.1.

The maintenance factor associated with the formulated maintenance regime for the Light TechnicalParameters shall be 0.7.

2.1.6 Design Methods and Rules

Design Tools and methods identified under Australian Standards AS/NZS 1158.1.1 andAS/NZS1158.3.1 shall be applied.

2 . 1 . 6 .1 Ca t e g o r y V L i g h t i n g - D e s ig n M e t h o d s

Table 1

2 . 1 . 6 .2 Ca t e g o r y P L ig h t i n g - D e s i g n r e q u i r em e n t s

All Category P lighting shall be designed in accordance with AS/NZS1158.3.1 and any specific MainRoads' requirements as stated under clause 2.3.

Design of public lighting shall comply with the requirements of AS/NZS1158.3.1 and Table 2.

Table 2

Item Road Element Design Method AS/NZS reference

1 Straight Section Luminance-based Computer

Calculation

Clause 3.2 of AS/NZS

1158.1.1

2 Curved Sections Curved Spacing ChartLuminance-based ComputerCalculations

Clause 3.3 of AS/NZS1158.1.1

3 Intersections,Junctions and otherSpecified Locations

Luminance-based ComputerCalculations, where applicable andIlluminance-based ComputerCalculation

Clause 3.4 of AS/NZS1158.1.1

4 Isolated Intersections Design Rules Clause 3.5 of AS/NZS

1158.1.1

Item Road Element Design Category AS/NZS reference

1 Roads in local areas P3, P4, P5 Table 1.1 of AS/NZS 1158.3.1

2 Pathways including cycle

ways

P1, P2, P3, P4 Table 1.2 of AS/NZS 1158.3.1

3 Public Activities excludingcar parks

P6, P7, P8 Table 1.3 of AS/NZS 1158.3.1

4 Connecting Elements P9, P10 Table 1.4 of AS/NZS 1158.3.1

5 Out door car parksincluding Roof Top carparks

P11, P12 Table 1.5 of AS/NZS 1158.3.1




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2 . 1 . 6 .3 D e p a r t u r e f r om D e s ig n S p a ci n g

Where necessitated at isolated points in the installation due to the presence of obstruction orstructures, the design spacing may be varied by not more than 10% for any two consecutive spans.Refer to AS/NZS1158.1.1 and Clause 3.3.8 of AS/NZS 1158.3.1.

2.1.7 Computerised Calculation Software

The AS/NZS 1158 series Standard for lighting for roads and public spaces permits the use ofcomputer programs for calculating illuminance and luminance such as the SAA STAN program, PLE,AGI, etc.

The outputs of such computerised calculations shall certify conformance to AS/NZS 1158 seriesrequirements and specific Main Roads' requirements.

2.1.8 Electrical Design

The design of the electrical installation shall comply with WA Electrical Regulations, SupplyAuthority's Requirements, AS/NZS 3000 Wiring Rules and Section 10.4 of AS/NZS 1158.1.3.

The selection of cables with respect to size, voltage drops and other requirements shall comply withAS/NZS 3008.

The design drawings shall include but not limited to:

Details of cable sizes, circuit diagram, main switchboard and its location, The electrical circuits forming the controls and switches, Schedules of luminaries, their poles/pits, circuits and their phases, Pole numbers, etc. Conduit sizes, road crossings, cable pits

Material or equipment quantities and other relevant details. [Refer to Section 4 of thisGuideline for more information]

The design shall use inter-leaved three-phase circuits for providing supply to the roadway lightingsystem except for some minor luminaries and other low load circuits such as Public Lighting wheresingle-phase supply may be employed. [Refer to Clause 3.3 of this Guideline].

Three phase electrical loads shall as far as practically possible be evenly distributed across eachcircuit.

2.1.9 Power Supply

Power supply shall be 415 V a.c. 50 Hz, three-phase active, neutral and earth or 240 V a.c. active,neutral and earth. Allowable voltage and frequency variations shall be as permitted by Western

Australian Electrical Requirements, whose custodian is the Office of Energy.

The design shall be submitted to the Electricity Supply Authority (i.e. Western Power or some otherprivate operator as the case may be) proposing the Point of Attachment, its location and the type ofconnection, that is, whether the supply shall be via an aerial cable and service pole or undergroundpower cables in conjunction with a ground mounted service pillar. The preferred method ofsupplying electrical power is via underground cables.

2.1.10 Roadway Lighting Pole Set Back

Lighting poles shall be installed at the set back distance detailed below:

For straight and curved kerbed roads, poles shall be set back at least 1.5 metres from thevertical face of the kerb or edge of carriageway (including shoulders whether or not it is

sealed). Where there are no kerbs, the set back of the pole shall not be less than 3.0 metres from the

edge of the traffic lane and 1.5 meters from the edge of shoulder (whether or not it is

sealed).




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2.2.ROADWAYLIGHTING

,deflection of the barrier, but no less than 1.0 m from the barrier in a direction away from theroad.

Where there is other roadside items nearby, the pole shall be no less than 1.0 metre awayfrom the closest piece of roadside furniture, drainage pit etc.

On no account shall the pole be mounted on the road shoulder (whether sealed or unsealed), whichis that designated portion of the at-grade surface contiguous with edge of the traffic lane.

2.1.11 Embankments

The road geometry design shall allow for cutting or widening of the embankment to allow forinstallation of the roadway lighting poles to comply with the mounting height of 13.7 meters andmounting position as per clause 2.1.10 and in accordance with Main Roads Standard drawing 0530-

1456and 0530-1457.

Further, the designer is advised to consult other relevant literature on roadside engineering such asthe AASHTO NHI on Roadside Design Guideline, especially on matters relating to poles installation.

2.1.12 Roundabouts & Medians

Lighting poles shall not be installed in the centre of roundabouts or around the periphery of theraised island of the roundabout. If it is unavoidable, then AS/NZS 1158.1.3 shall be strictlyfollowed.

Lighting poles shall not be installed in medians, raised islands, except where unavoidable due tosite conditions; the pole set back requirements shall comply with Clause 6 of Appendix B of AS/NZS1158.1.3.

2.1.13 Intersections

At T-junctions and intersections, the same principle applies to the set back and location of poles

(refer to clause 2.1.10). Moreover, for a junction which has slip lanes, the layout of the poles,(taking into account the required set back and luminaire overhang) when viewed in perspective,should give as far as possible the run of the road ahead without causing confusion or indecision inmotorists.

Further, as much as is necessary to satisfy the design aims and compliance with standards andregulations, the design of the overhang of the luminaries should be such that it would not impedethe flow of traffic during maintenance work on the luminaries (i.e. for a two lane carriageway, atleast one lane must remain open at all times).

2.1.14 Other Considerations

When design work is undertaken, the designer shall at all times take into consideration the

following requirements:

Operating characteristics and the surrounds of the road High degree of safety, considering all the required clearances Ease of installation and accessibility Ease of maintainability Minimum capital, ongoing and maintenance costs Efficiency.

The following Main Roads physical parameters shall be stringently followed when designingroadway lighting:

a) The luminaire shall be fitted with High output 250 watt High Pressure Sodium (HPS)lamp.

b) Minimum lighting category for roadway lighting is category V3.

c) Typical mounting height for roadway lighting poles shall be 13.7 m.

d) Standard 12.85 m poles (measured "straight") shall be mounted on bridge railings or




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2.3.PUBLICSPACES(PATHWAYSANDCYCLEWAYS) LIGHTING

concrete parapet wa or ot erwise mounte a stee stump o set rom or in- ine wit t erailing to achieve a typical 13.7 m mounting height above the road surface.

e) Overhang values complying with standard outreach lengths used by Main Roads shall be0.0, 1.5, 2.5, 3.5 and 4.5 metres.

f) The road surface classification shall be taken as R3 of CIE Publication No. 27 forluminance calculations.

g) Road lighting pole type shall be slip-base or impact absorbent type where there is a riskof a secondary accident to occur, such as pedestrian areas or other utilities likeoverhead powerlines or footbridge abutments etc. The light pole types shall be decidedbased on Austroads Guidelines Part 11 for lighting.

h) The luminaire's optical assembly shall have an adjustable tilt of not less than +5ofromthe horizontal, which feature shall be inherent in the luminaire's design. However, theupcast and any specific luminaire settings required shall be specified in the design.

If for any reason technical or otherwise, any of the above physical parameters cannot be satisfiedand the need for the employment of unusual methods or arrangements or materials or componentsbecomes evident, then such reasons shall be properly and duly recorded in the designdocumentation.

The design objectives of Category P lighting are achieved by specifying luminaire optics, lamp type,lamp watt, lumen output, mounting height, spacing of poles, setback from the edge of path oredge of kerbed path, overhang length and other physical parameters to satisfy the requirements ofthe sub-category required for the pathway.

Main Roads requires P2 Category lighting for Principal Shared Paths to be achieved with the

following additional parameters:

a) Typical mounting height for column mounted Pedestrian Light poles shall be 7.0 meters.

b) The outreach length for pedestrian lighting is to be 0.0 to 1.5 meters.

c) The luminaire's optical assembly shall have an adjustable tilt of not less than +5ofromthe horizontal, which feature shall be inherent in the luminaire's design. However, theupcast and any specific luminaire settings required shall be specified in the design.

d) All pedestrian lighting design and installation shall be High Pressure Sodium (HPS)lamps.

e) Point horizontal and vertical illuminance of no less than 5 lux;

f) At locations where a PSP intersects another Path the horizontal and vertical illuminanceshall not be less than 20 lux;

g) At locations of conflict and high pedestrian usage such as rail stations point horizontaland vertical illuminance of no less than 20 lux shall be achieved;

h) Desirable pole setback should be 1.0m from edge of path;

i) Vegetation in the vicinity of lighting is to be removed/pruned so as proposed lightinglevels are maintained.

j) Regular maintenance requirements for vegetation should be mentioned under designreport.

k) Spillage lighting level (roadway lighting only, not commercial lighting etc) and

reflectivity of any walls or surfaces in the vicinity of the lighting is to be included inlighting calculations.

l) Minimum lighting category for PSP under pass lighting is P10 in accordance with AS/NZS1158.3.1:2005.

m) It is required to comply with V3 Category lighting requirements where a PSP intersects aroad in accordance with AS/NZS 1158.1.1:2005.




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2.6.UNDERPASSANDSHORTTUNNELLIGHTING

2.7.HIGHMASTLIGHTING

In special locations such as grade-separated interchanges or other road sections having unusualgeometry or other reasons such as energy costs, aesthetics and controls of Light Pollution, it maybe necessary to use high mast lighting system. Where such a need arises, the necessaryinformation, technical data and a cost benefit analysis of such a system shall be submitted as partof the design. These shall include but not limited to the following:

The proposed height of each mast shaft. The maximum and minimum dimensions of the mast shaft at the bottom and top. The number and dimension of the outreach arms. Mass of each high mast shaft, inclusive of luminaires, brackets arms and lowering/raising

mechanism. Structural calculations to prove design can withstand the geographical conditions such as

wind speed.

Details of anchoring system regarding type and dimensions of anchor bolts and their cover,anchor bolt circle template, shaft cap, pit dimension and pit cover.

Type of material used in the fabrication of the mast as well as the methods of fabrication,including quality control measures as required under AS/NZS 1796 and AS/NZS 9000.

The total electrical load per mast. The light distribution design shall be based on the IES or other approved technical authority's

method of determining the luminance or illuminance levels, including all Isolux contourdiagrams for the areas involved.

A lowering / raising mechanism to allow maintenance to be carried out with minimuminterruptions and maximum safety to both the workers and the passing road users below.

The mechanism shall be similar to Main Roads Western Australia's existing high mast

mechanism for economy reasons. All information relating to the above shall be presented in accordance with the Section 4 of

this Guideline.

.

Clause 2.5.1 of this guideline should be applied when undertaking the lighting design for underpassor short tunnel lighting. It is usual to take into account the contribution of flux from other sources

in the vicinity though this is often negligible given the low height of the underpass or tunnel and thecomparatively high level of externally mounted road lighting luminaires. However, the multipleinternal reflections from the soffit and wall of the underpass or short tunnel due to the luminairesinstalled therein can be taken into consideration based on AS 1680.1. The designed luminance levelfor the road surface should not be less than that of the road, which traverses through theunderpass or tunnel.

Underpass and Tunnel lighting design would depend on the actual length and width of theunderpass or short tunnel. In some cases where daylight may filter through the gap between two-separated carriageways such as it is found in some underpasses, daytime lighting may not berequired. However, night lighting shall in most cases be necessary.

For underpasses which have a mixture of vehicular, cyclist and pedestrian traffic, it is important totake into account the illuminance required for direct illumination of the cyclists and pedestrian pathsin addition to the luminance level for the road surface.

In underpass or short tunnel constructed strictly for pedestrians or pedestrian and cyclist traffic, theilluminance criteria shall allow for the safety and security of public when designing for daytime andnight-time lighting in accordance to Clause 2.3.

If the length of the tunnel or underpass is long, the lighting design should allow for parity of lightingfor eyes entering from daylight into dark and exiting into daylight environment, in addition to otherlighting design considerations.

The designer would need to consider each case on its own merits according to Part 1.1 and Parts3.1, 5 and 6 of AS/NZS 1158. The relevant MRWA Drawing for reference is 0448-3011.




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2.8.WESTERNPOWERLIGHTINGDESIGN

3.LIGHTING COMPONENTS

3.1.GENERALREQUIREMENTS

3.2.MAINSWITCHBOARDREQUIREMENTS

All lighting circuits providing electric power to the lighting poles to be supplied from a mainswitchboard located in the vicinity of the road lighting scheme. The main switchboard shall acceptthe Western Power supply of single-phase, 240 Vac or three-phase 415 V ac, 50 Hz via a Point ofAttachment, which may be an aerial-type feeder or ground mounted service pillar, or fuse pit.

3.2.1 Main Switchboard Fittings

Although the details of lighting design dictates the switchboards equipment list, the fittings andcomponents of the main switchboard shall be as per Main Roads Specification 701and DesignGuideline drawing for Switchboards.

All switchboards require a DIN rail mounted 16 Amp Main Circuit Breaker over-current device toprotect the system from earth leakage. The circuit breaker must comply with the requirements ofAS/NZS 3000:2007

Where the switchboard is also required to provide power to a traffic signal controller, a traffic signalcircuit breaker shall also be included in the Main Roads compartment. Further, in some cases, itmay be necessary to include a surge diverter in the switchboard in areas or regions that experiencea high degree of lightning activity. The circuit breaker design must comply with the requirements ofAS/NZS 3000:2007

All voltage ratings of the component shall be rated for operation at 415 V three phase (Roadway

Lighting) or 240 V single-phase (Pedestrian Lighting) supplies as applicable to the type of lightingrequired, i.e. roadway lighting or pedestrian lighting. Current ratings of the components shall be asdetermined by design.

Main Roads may be involved in the design and construction of roads where roadway lighting wouldbe designed to Western Power lighting standards.

Western Power has an account manager for Main Roads who would arrange for design activity tobe carried out.

The designer shall contact Western Power's representative to arrange for design to be carried outto Western Power standards.

Below is the Western Power contact detail:

Western Power Account Manager - 08-9326 4989Horizon Contact Centre - 131087

The designer shall also contact to seek Western Power's approval of the lighting design and toattach a copy of such approval to the design report for submission to the Principal.

All materials used in the fabrication of the lighting components shall be of the highest quality interms of purity and alloy content, resistance to the debilitating effects of the elements of weather,

electrical and mechanical properties. They shall be manufactured to the requirements of Main RoadsSpecification 701, current industrial standards and shall be suitably rated for the specified duties.Quality controls instituted during their manufacture shall conform to the AS/NZS 9000 Series toensure that their durability and functional life meet current Australian and International Standards.




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3.3.CABLESANDWIRING

All cable and wiring shall comply with AS/NZS 3000 and Main Roads Specification 701for theInstallation and Maintenance of Roadway Lighting. All cables shall have stranded copper conductorsand double insulated PVC with an insulation rating of 0.6/1kV.

All insulation colours shall be as follows:

Active conductors - Red (R), White (W) and Blue (B) Neutral conductors - Black

Earth conductors - Yellow/Green

The voltage drop shall comply with the requirements of AS/NZS 3000 wiring rules. In any case,

cabling and wiring run underground shall not be less than 2.5mm2.

Circuit number (e.g. L1, L2, L3, L4 etc) allocated to each light pole shall be clearly marked on thedesign drawings.

Underground power is the preferred method of mains supply from the Power Supply Authority tothe switchboard and from the switchboard to the lighting poles. The design drawing shall provide

full details of type of power supply and location for Point of Attachment.

Circuits shall be so arranged that lighting poles are connected to alternate phases and circuits usingseparate cables. In other words, the system shall employ an interleaved circuit/alternate phase tosupply power to the luminaires mounted on the poles. For a three-phase system, it is illustrated inFigure 1 below:

. .

The position and internal arrangement of the components shall be such that good access is providedfor installation, meter reading by Western Power personnel and subsequently maintenance.Particular attention shall also be given to the location of switches, levers, handles etc with respectto the personnel operating and maintaining the switchboard. The switchboard dimensions andinternal rear clearances shall satisfy the WA Electrical Requirements. The design location forswitchboard shall be such that the door(s) are facing away from the road.

The switchboard housing design shall allow for separate compartments with unique key and itsduplicates for Main Roads and Western Power as detailed in Main Roads Specification 701.

The direction the switchboard, which is positioned accordingly, allows for fitting of PECell to theexterior of switchboard housing to utilise sunlight.

3.2.3 Main Switchboard Dimensions

A Standard Switchboard has dimensions 650mm (W) x 1400mm (H) x 350mm (D) and is normallymounted on a reinforced concrete plinth. It also has a separate compartment for housing WesternPower meter and cut outs. Refer to Main Roads Specification 701for Supply and Installation ofRoadway Lighting and Main Roads Switchboard Guideline Design drawings.




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3.4.CONDUITSANDROADCROSSINGS

Figure 1

Notes:

1. Symbol for Light pole and pit system .2. AAA is the Main Switchboard Number.

3. L1, L2, L3 and L4 are three-phase circuits, numbered as AAAL1 or AAA L2, AAAL3 and AAAL4inside the switchboard.

4. Phases are shown as BW, WR or RB.5. Odd numbered poles are numbered as AAA01 or AAA03 or AAA05 on one side.6. Even numbered poles are numbered as AAA02 or AAA04 or AAA06 on opposite site to odd

numbers side.7. Large arrows show direction of travelling motorists.

Note that the pole numbers are to be prefixed with the switchboard number. For example,assuming the switchboard number is 'AAA', the odd number poles would be designated AAA01,AAA03 and AAA05 while the even number poles would be AAA02, AAA04 and AAA06. Thenumbering shall be extended to all exit and entry lanes along the lighting scheme.

Pedestrian Lighting schemes should be numbered so that numbers are in ascending order sincelight poles are installed on one side of the path. For example, AAA01, AAA02, AAA03 ,etc.

Figure 2

Note:

1. For single phase circuits, circuits would be different but off the same phase.

All conduits used for running the cable shall be heavy duty PVC conduit conforming to AS/NZS 2053Series and the amendments thereto, and shall be of the following sizes:

80mm conduit - between Point of Attachment (P.O.A) and Main Switchboard

63mm conduit - between cable pits.

32mm corrugated conduit - between cable pit and pole.

The run of the conduit shall as far as possible be parallel to the carriageway and shall be locatednominally 2.0 metres from the edge of the kerb or the edge of the carriageway. The conduits shallnot be located under pedestrian ramps or crossings.

For road crossings, the following standard sized duct and pipe shall be used:

150mm PVC conduit complying with AS/NZS 2053.

300mm DN Fibre-Reinforced Concrete Pipe conforming to AS 4139.

140mm diameter Class 9 PE (preferred option).




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3.5.CABLERUNS, ROUTEMARKERSANDIDENTIFICATION

3.6.LUMINAIRES

Where these are required, the preferred method of installation is to be directional thrust-bore underand across the existing road pavement at the required depth and terminate each end of thecrossing in pits which shall be located at between two to three metres from the edge of thekerb/shoulder, But where such sub-ducting is required, as for cases where telephone lines andstreet circuits are required to traverse the road, then the duct pits may be terminated at one metrefrom the duct's ends in order to permit the installation of the various services pits at distanceswhich will facilitate the ease of installation and maintenance of the services concernedsubsequently.

When the road-crossing conduit is used as a shared service between authorities, Main Roadselectrical lighting cables shall be run within a 63 mm conduit inside the road crossing.

As far as possible, all cable runs shall be continuous throughout their designed routes. Where jointsare required, they shall be affected inside cable pits only.

All lighting luminaires shall in general comply with the requirements of Main Roads Specification 701- Roadway Lighting.

3.6.1 Roadway Lighting Luminaires

The listing order of the brands does not in any way indicate the order of preference. Neither do theimplied specifications of proprietary brands indicate that any preferential treatment is to be accordedto these brands.

All Road lighting luminaires shall comply with AS/NZS1158.6 and AS/NZS 60598 and Main RoadsSpecification 701.

Main Roads' approved Roadway luminaires based on proprietary brands are:

The 250-watt HPS lamp specified is the lamp used in a vast majority of cases but in some instances,400-watt HPS lamp or higher may be used where the road geometry or other site conditions warrantit, as in the case of high mast lighting.

The designer shall at all times select the most suitable Luminaire for the project in terms of costeffectiveness , luminaire spacing and maintenance requirements as identified under Clause 2.1.14.The Designer's recommendation should be finalised and submitted at 15% and 85% design reviewstage. Refer to Appendix B for guidance.

3.6.2 Under-Bridge Lighting Luminaires

Main Roads currently uses the following under-bridge luminaires:

a) GE M-250R2.

b) Sylvania, B2227(R47) for general roadway lighting.

c) Holophone Vector HL2A400HP24KGR for multi-lane lighting of Mitchell Freeway.

d) Thorn Alpha 2000 luminaire is being considered for approval to be included in MainRoads list of approved Roadway Lighting luminaries.

a) Holophone Module 600 MDWP240HP24BK for underbridge lighting applications.

b) Holophane Wall Packette WL3K (WP2A070HP24GR WP1 and WP2) for walkway and

Any change in the conduit direction shall be shown on design drawing by showing the location ofcable route markers on the concrete surround while their installation shall be in accordance withMRWA Drawing No. 200231-0063.




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3.7.LIGHTINGCOLUMNSANDOUT-REACHARMS

3.7.1 Pole Type Selection

Though it is Main Roads policy to use slip-base poles for mounting the luminaires for the lighting ofFreeway/Highway/Controlled Access Roads, it must be borne in mind that where use of such polesis not comparable with Main Roads standards and Australian Standards, the designer shall considerthe use of impact absorbing lighting poles as recommended by the Australian Standards.

Main Roads WA currently uses various types of poles:

Slip-base pole (in the majority) (frangible)

Impact absorbing pole (frangible)

Bridge mounted light poles

Pedestrian light poles

Joint use Roadway Light pole and Emergency Telephone - subject to compliance with allrequirements under Design Guidelines for Emergency Telephones and Main RoadsSpecification 702- Emergency Roadside Telephones joint with this type of light pole should

be approved by Main Roads WA prior to finalising design.

Though the vast majority of poles used are of the slip base type, the decision as to which type ofpole is selected for road lighting would depend on the maximum design speed on the road, thevehicular & pedestrian traffic volumes as well as the location concerned. As a rough rule of thumb,slip-base pole shall be used in locations where the speeds are in excess of 80 kph and where adislodge pole is not likely to cause serious injury to pedestrians or the occupants of nearby vehicles(i.e. secondary accidents).

The preferred length of the outreach is 0.0, 1.5, 2.5, 3.5, and 4.5 metres.

Use of other types of Light poles such as Rigid type where applicable and in accordance withStandards shall be identified and advised by the designer prior to completion of the design.

Roadway Light Poles and outreaches shall generally conform to the requirements stated underSpecification 701 and those shown on Standard Drawings.

3.6.3 Over-bridge/Overpass Lighting Luminaires

Luminaires for over-bridge lighting are similar to those specified for road lighting as detailed inClause 3.6.1 above.

3.6.4 Pedestrian Lighting Luminaires

Luminaries shall comply with AS/NZS 1158.6 and AS/NZS 60598.

Currently, Main Roads is installing Thorn FVC 2D-28-B as an underpass luminaire and Thorn Civic 1luminaires for pole mounted pedestrian lighting. Approval for these products is being sought toinclude them in the list of preferred luminaires for underpass and pedestrian lighting.

However, Approval for any luminaire considered under the design shall be documented and soughtfrom the Principal as per Appendix B.

3.6.5 Other Approved Products

Main Roads also approved ATCO, Ignitor (Catalogue No AMZN400/T1) under Lighting approvedproduct list.

.

c) Thorn Meco Flood (Currently is being installed under Main Roads Projects)




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3.8.CABLEPITS

3.7.2 Standard Drawings for Light Poles

Light Poles for Roadway and Pedestrian Lighting shall conform to the following drawings:

Round Roadway Light poles

9220-0636and 9220-0637

Octagonal Roadway light poles (Slip Base type)

0530-1456and 0530-1457

Pedestrian Shared Path Light Pole

0448-3008

Joint use of Roadway light pole and Emergency Telephone (Impact absorbent)

0348-3123, 0448-3012and9220-670

Octagonal Roadway Light poles are the preferred light poles to be installed at all new sites.

Use of Round poles shall be limited to existing lighting schemes, if advised under the scope of work.

To allow the greatest flexibility on maintenance and repairs, on both 3-phase and single phaselighting systems, all roadway lighting Schemes shall utilise a cable pit system. Only RoadwayLighting Scheme requires cable pit termination next to each light pole. Main Roads uses different

sizes of pits according to the function each pit is to perform. Refer to Main Roads Specification 701.

Pedestrian Lighting scheme does not require cable pit to be installed at each pole.

3.8.1 Main Switchboard Cable Pit

The dimensions of the main switchboard cable pit ("Viscount P1" or similar) shall be of adequate sizeto facilitate cable installation in the 80mm and 63mm ducts inserted and fixed into the sides of thepit. Refer to Main Roads Specification 701for supply and installation of Roadway Lighting.

3.8.2 Lighting Pole Cable Pit

Each Roadway Light Pole shall be provided with a pit to facilitate cable drawing works and thetapping-off of power to the luminaire via Tee-off point in the pit and a flexible corrugated PVCconduit to the terminals at the control gear tray located at the base of the pole. It also permits easy

isolation of faulty luminaires or damaged pole in the event of a collision.

The dimensions of the pit shall be as shown on the Standard Drawing 200231-0063which isequivalent to "Viscount P4" or similar approved cable pit. Refer to Main Roads Specification 701forRoadway Lighting.

The location of the pit shall be at least 0.5 metre from the pole measured in a direction away fromthe kerb or the edge of the shoulder of the road.

Pits associated with light poles shall have the same reference as the pole. Starting from the pit

nearest to the switchboard, each pit associated with the light pole shall be prefixed with analphanumeric reference to include the switchboard number as well, e.g. 607P1, 607P2, 607P3 etc.

3.8.3 Other Pits




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3.9.REFERENCINGCONVENTIONFORSWITCHBOARD, CIRCUIT, POLEANDPIT

4.DOCUMENTATION

4.1.ELECTRICALDESIGNDRAWINGS

4.2.ASCONSTRUCTEDDRAWINGS

5.DESIGN GUIDELINES DRAWINGS

Other pits shall be installed where there is a change of direction (normally 90o) of the conduit run orat the extremities of ducts across roads. They shall be similar to that specified for lighting pole pit insub-Clause 3.8.2 above, though their dimensions may vary depending on the function intended.There shall also be a pit provided to house the earth electrode for the main switchboard.

Typical layout of conduits, ducts and their associated numbering, cable pits and pit details areindicated on Standard Drawing and 200231-0061, 200231-0063, 0530-1456and 0530-1457.

Drawing Number Drawing description

9220-670Emergency Telephones - General Arrangement, Foundation and Base

Details

200231-0057 Typical Under Bridge Lighting Layout and circuit Diagram

200231-0061 Typical Design Guideline Drawing- Conduit and Cable Pit Layout

200231-0062 Switchboard Plinth Detail

200231-0063Cable Pit and Light Pole Internal Wiring, Cable Pit Marker and ConcreteSurround Details

200231-0065 Typical Design Guideline Drawing-Switchboard Schematic

200231-0066 Typical Design Guideline Drawing-Switchboard Layout

200231-0067 Lighting Drawing Legend Convention

0348-3122 Impact Absorbing Roadway Light Pole for High-Speed Areas.

0348-3123 Impact Absorbing Roadway Light Pole and Emergency Telephone Light

Numbers as specified by Main Roads Western Australia shall be allocated to the switchboard andeach light pole. Once the switchboard number is fixed, all other items such as circuit, pole and pitnumbers shall be prefixed with the switchboard number for ease of identification. Please refer toClause 3.8 of this Guideline for further details on referencing of circuits, poles and pits.

In documenting the design drawings shall conform to MRWA's Drawing Presentation Guideline, therequirements of Section 11 of AS/NZS 1158.1.3 and Main Roads Specification 701.

Upon completion of drawings, a set of three printed copies of the documents and an electronic copyof the drawings shall be submitted to Main Roads for information and retention.

Upon completion of all works on sites deign drawings shall be amended and modified to representthe asset as built on site. The preparation of As Constructed Drawings shall be in accordance withMain Roads Design and Drawing Presentation Guideline for As Constructed drawings.




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7.APPENDIX B-SELECTING A LUMINAIRE TYPE OTHER THAN ANAPPROVED PRODUCT

ese amps s a ave o ow ng arac er s cs:

6.6 Lamp Colour Temperature and Life

All lamps rated from 70 watts to 400 watts under Main Roads Installation shall have colourTemperature of 2000 K and life of 28500 hours.

6.7 Roadway and Pedestrian Luminaire Selection

The designer shall select luminaires and its accessories in accordance with standards listed below:

Lamp wattage 28

Lamp cap GR10

Colour temperature (K) 3500

Rated life (hours) 10,000

Lamp lumens (lm) 2850

AS/NZS 1158.6AS/NZS 60598AS/NZS 60922

AS/NZS 60923

AS/NZS 61347.1AS/NZS 61437.2.1AS/NZS 61437.2.9

Lighting for Roads and Public space-LuminairesLumianaires.Auxiliaries for Lamps - Ballasts for Discharge lamps - General and safetyRequirementsAuxiliaries for Lamps - Ballasts for Discharge lamps - PerformanceRequirementsLAMP control gear - General and Safety RequirementsLamp Control gear- Particular requirements for Starting DevicesLamp Control gear- Particular requirements for Ballasts for Discharge lamps.

7.1 Luminaire selection

Luminaire Type shall be selected in accordance with the requirements set out under Appendix A ofthis document and Main Roads Specification 701- Supply and Installation of Roadway LightingEquipment.

7.2 Propose a Luminaire type under design

It is designer's responsibility to submit his recommendation and seek Main Roads Approvals.

The supporting document could cover the listed information in below and any other relevantinformation related to the design.

7.3 Assumptions-Example

This should be treated as a working example only.

Software used to calculate the luminaire spacing - Perfect Light.Maintenance Factor - 0.7.Lamp - 250W, High Pressure Sodium.Initial Lamp flux(lm)=33000 lm.Road type - Carriageway divided, two lanes with median.Lane width - 3.5 meters.

Emergency Lane Width - 3.0 meters.Verge width - 2 meters.Pole set back - 1.5 meters.

Mounting Height - 13.7 meters.Li htin arran ement - ARR5




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Lighting Category - V3.Carriageway width = 2 x Lane width + 2 x Emergency Lane.

= 7.0 + 6.0 .= 13.0 meters

Selected Luminaire- Thorn Alpha- 2000- ASN250.4/84.The maximum Spacing could be achieved is 80 meters, however, for extent of our project isselected to be 75 meters. This means under this project the follow applies:

For Arrangement 5 for the extent of 750 meters:

Under luminaire Thorn Alpha the light pole spacing is being increased by 10 meters and results inuse of 20 light poles where under standard conditions minimum 24 light poles would be requiredunder other types as identified under this project, hence:

At installation stage, a saving of 4 light poles complete with footing, outreach, internalwiring, cable pits and Luminaires would be achievable.

Maintenance cost is reduced by approximately 16% (less number of light poles are requiredto be maintained).

Running cost is reduced by approximately 16%.

Australian Standard is still complied.

Conclusion:To recommend the best installation and justify your recommendation.

LuminaireType

Lightpole

numbers

Installationcost

Maintenancecosts

Maintenancerequirements

RunningCost

Compliancewith

StandardsYes/No

Comments

A X $$$$$$ $$$$$$

As perrecommendation

frommanufacturer

$$$$$$ YesMaximumSpacing ofxx meters

B X $$$$$$ $$$$$$


from

manufacturer

$$$$$$ YesMaximumSpacing of

xx meters

C X $$$$$$ $$$$$$


frommanufacturer


D X $$$$$$ $$$$$$


frommanufacturer


E X $$$$$$ $$$$$$


frommanufacturer

$$$$$$ YesMaximumSpacing of

xx meters




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