25 January 2013 Courtney Winter Rigby Cooke Lawyers Level 13, 469 Latrobe St. MELBOURNE 3000 Peninsula Link Freeway Service Centre Baxter – External Lighting Design - Electrical Services We are providing the following information in relation to the outdoor lighting design for the proposed Service Centre at Baxter on Peninsula Link Freeway. BRT Consulting is a firm of Building Services Engineers and one of our roles is lighting design in and around buildings. We are also members of the IES (Illuminating Engineering Society of Australia & New Zealand Limited). There are several factors in external lighting design that need to be considered: 1 Providing enough light to make the space safe to all who use it at night; 2 Not providing too much light such that the light is an annoyance to neighbours of the

property; and 3 Meeting the relevant standards and regulations. Internal Lighting Design In completing the specific design for the car parking and circulation spaces at Peninsula Link Freeway Service Centre, Baxter we have considered all of the above. The proposed design utilises light fittings and poles which are an industry standard method of lighting external car parks. We have had the design confirmed with the lighting supplier of the exact light fittings to confirm the proposed levels will meet relevant Australian standards. The North and South bound sites both use a combination of 4m, 6m and 10m poles with various different wattage fittings attached to meet the standards. A computer simulation is undertaken to model the output of the lights based on laboratory testing of the fittings. The computer simulation takes into account all of the proposed fittings and their effect beyond the properties’ boundaries. A copy of these results accompanies this report. Drawing number 12415E1-Sheet 1 Revision A shows the schedule of proposed light fittings. This schedule lists details of the light fittings including type of light fitting, type of light source, wattage of fitting, mounting height and accessories to be supplied as part of the light fittings.

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Drawings 12415E1 – Sheets 2&3 (both Revision A) shows the light fitting plan which presents the locations for the fittings scheduled. Light fittings are shown as symbols and designations corresponding to the schedule of fittings on Sheet 1. This plan also presents the horizontal illuminance values for the design areas within the site. The areas have been designed to meet Australian Standards to the relevant Category for the designated use of the area. The details of the categories designed to are in the ‘Notes’ section on each sheet. The fitting type, output, distribution (‘shape’ of the light out of the fitting), mounting height, orientation and location have been selected in order to meet the requirements for each relevant category as set out in the Australian Standards listed on the drawings. Obtrusive Effects of Lighting Design In addition to a compliant design to meet required internal lighting illuminance levels an obtrusive light compliance report has been prepared. This report is found on Sheet 4 attached. It is derived from the same computer simulation which is used to design a compliant internal design. As can be seen on Sheet 4 the surrounding properties beyond the property have been surveyed and imported into the simulation. The obtrusive light compliance report has been prepared based on Australian Standard AS4282-1997 ‘Control of Obtrusive effects of outdoor lighting’. This standard sets out allowable illuminance and luminous intensity values at surrounding properties. AS4282 presents a recommendation on maximum values of the light technical parameters depending on time of day, use of the properties (i.e. residential or non-residential) and the amount of surrounding light from road lighting. For the purposes of the compliance report the most stringent of options has been selected, that being residential areas with dark surrounds at curfewed hours. This corresponds to 1 lx maximum illuminance at the plane of windows of habitable rooms and 500 cd luminous intensity to a position where a view of luminaires is likely to be maintained. Without accurate data on the existing adjacent dwelling window locations, room layouts and any obstructions the compliance report has taken a worst case scenario and assessed the technical parameters at the property boundaries. The vertical planes of calculations along the boundaries are shown on the plan on Sheet 4. The results for all planes assessed show all lighting technical parameters are less than the recommended maximum values for the most stringent of circumstances. Illuminated Signage The proposed development includes plans for internally illuminated signage around the site. This includes advertising signage, informational signage and directional signage. Unlike laboratory tested light fittings there is no data on the light output (photometrics) of the illuminated signage. Therefore accurate simulation of the effects of the illuminated signage cannot be performed. Additionally, the Australian Standard AS4282-1997 ‘Control of Obtrusive effects of outdoor lighting’ which sets outs standards on light technical parameters and lighting designs to minimise effects on neighbouring properties there is no equivalent standard for illuminated signage. AS4282 makes specific mention that it is not applicable to internally illuminated advertising signs.

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Having said that, in considering the impact of the internally illuminated signage we present the following comments.

1. Internally illuminated signage typically has diffuse or coloured covers on the face of the sign with backlighting behind. The covers shield any direct view of the light source and diffuse the light out of the sign. This would result in low luminous intensity (glare) from the signage. Given the distance to the nearest boundary and the diffuse nature of the light output it is expected the luminous intensity at the boundary will be less than the 500cd evaluated in the Obtrusive Light compliance report.

2. Whilst the exact lamps and light source used in the illuminated signage is not known, the

illuminance produced by the larger signs (‘MID’ and ‘Price Board’) is typically less than that used to safely light the carpark. As this illuminance is dispersed in all directions there is no directionality to the output. The low level of illuminance, disperse nature of the light from the signs and the distance to the nearest neighbouring property leads to the expectation that compliance to AS4282 is achieved.

Conclusion The proposed external lighting to the site has been designed to meet the relevant Australian Standards for the use of the area. An obtrusive lighting compliance report has been completed on the proposed design in accordance with the most stringent recommendations of AS4282-1997 ‘Control of Obtrusive effects of outdoor lighting’. All results looked at in the report pass the specified parameters of AS4282. Additionally, whilst exact data or simulation on the illuminated signage is not available it is our opinion that the effect of the illuminated signage will not impact the above AS4282 compliance nor have a detrimental effect on the surrounding properties. We hope the above information helps and should you require anything further please do not hesitate to call. Yours faithfully Sam Thorn Director