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school in the dark the exterior lighting needs to be on at full output to deliver high visibility and ensure maximum safety. ‘This applies to both pedestrian areas and those for motorised traffic. Typically, staff will leave later than the pupils and not all at the same time, so the lighting of car parks and roadways could be dimmed to reflect the lower risk of accidents while still maintaining safe illuminance levels,’ explains Barnwell. ‘Later in the evening, there may be an event such as a play or a concert where large numbers of people arrive at about the same time, ready for the beginning of the performance. There will then be a period of a couple of hours where there is very little activity in the school grounds, before the mad rush when the event has finished. Dimming the lighting during this quieter period will maintain adequate illumination without wasting energy.


‘The use of dimming in this way simply follows the established best practice for other types of lighting, namely that the lighting of spaces should be aligned to the demand for light. The fact that this same principle can now be applied to HID lighting greatly increases the opportunity to extend energy saving initiatives to areas of schools and other buildings that have hitherto not been able to benefit from enhanced controllability.’ ‘Amenity, what is it? Literally meaning “a feature that increases attractiveness”. If we apply this to lighting we should


consider amenity lighting as an opportunity to increase the attractiveness to an area,’ explains Mike Hill, managing director of WE-EF Lighting.


Looking at the Temple Quay project in Bristol, the specially designed columns by WE-EF utilise both pathway and effect lighting to enhance the space. From an architectural point of view, the columns form a vertical structures and the lighting encourages full use of the area.


‘When the opportunity arises to improve our urban landscapes, every effort should be made to enhance what is already there or add to it. This encour- ages full use of the area, not only during the working day but also after hours and during the hours of darkness. This is what we call Liveable Cities.’


DW Windsor was approached by WSP and Transport for London to refurbish the ornate columns and lanterns on Battersea Bridge, London. The historical importance of the bridge had to be recognised throughout the project along with consultation with English Heritage – due to the Grade II status of the structure. Key requirements included the improvement of lighting levels, in addition to minimising the light spill onto the river and ensuring a high IP rating to future-proof the fittings against the elements, ensuring life expectancy and illumination levels for years to come. The existing luminaires were in a very poor state, both damaged and dirty, plus reflectors were missing and light spill was quite dramatic. DW Windsor recommended that replica lanterns should be made, which would allow modern technology to be used, incorporating the company’s Diamond Optic reflector for optimum lighting control and energy efficiency. Ghidini offers a couple of great


products for the amenity sector. Maestros has various LED and HIGH light source and distribution options, and allows a flexible approach for many external environment lighting applications. The Maestros are made from oxidation resistant die-cast aluminium and incorporate the innovative MOVILED OPTICS system,


Top: Alumet range of columns by Thorn. Ghidini’s Corrimano handrail lighting and Maestros.


26 www.a1lightingmagazine.com


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