Car parks should provide basic levels of visibility. Illumination levels must promote confidence and feelings of safety and security. Locating lighting above and between parked cars ideally, this is to eliminate potential hiding places within a carpark.
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Best Practice Advice
Wide column spacing in outdoor car parks may be counter-productive in terms of light distribution. A higher quantity of lower output luminaires, more closely spaced, is often preferred.
Vertical illuminance must also be considered to ensure good facial recognition which instills a sense of personal security in spaces that may often be quite deserted. This form of illuminance also helps the effectiveness of CCTV recordings.
Light Spill & Pollution
Specific areas such as ticket machines, barriers, pedestrian walkways, and signage benefit from highlighting to allow easy location and wayfinding
Car parks are often close to local residences, therefore light spill and general light pollution should be carefully considered and minimised.
Vandal resistance and high ingress protection are vital for luminaires specified in car park applications.
To light these areas a range of column, wall mounted luminaires and bollards may be appropriate with close attention paid to light spill. Reference should be made to BS EN 12464-1:2011 for indoor applications. As well as BS EN 12464-2:2014 which has guidance for outdoor car parking applications.
Calculated uniformity should be 0.4 for covered / 0.25 open but care should be taken to avoid, as much as possible, areas of deep shadow between vehicles by careful selection and positioning of luminaires
Using a lighting controls system can improve the quality of illumination, whilst reducing the energy consumption. Control systems allow the use of light in the required place, at the right time and in the optimum quantity. At Designplan we can provide control solutions for traditional switched applications and standalone luminaire operation, through to full networked systems utilising the DALI protocol.
PDF Lighting Guide
Our 24 page lighting guide identifies typical community and public applications, focusing on the principles of good lighting. We examine the benefits of the robust construction and lighting controls. This is to reduce the cost of ownership and carbon footprint. To download your copy click on the button below.