“30 per cent of a typical city authority’s budget is spent on street lighting – a sizeable proportion of its expenditure”
“Dimming the streetlights at quieter periods during the night or in the early hours of the morning when traffic flow is at a minimum will considerably reduce energy consumption and costs”
ently high volumes of traffic or congestion, the streetlights are deployed on full bright- ness but then are programmed to dim to established safe levels by the local manage- ment system when traffic flow is lighter. Dimming the streetlights at quieter periods during the night or in the early hours of the morning when traffic flow is at a minimum will considerably reduce energy consump- tion and costs - without any compromise on safety levels. It has been estimated that a dynamic lighting system can increase energy savings by up to 20 per cent5
.
RADAR BENEFITS Intelligent Radar Detection Systems are increasingly playing a vital role in the transport industry providing road authori- ties access to a wealth of information at their fingertips from vehicles’ target speed and position; vehicle count and occupancy
smartHIGHWAYS Vol 2 No 1
measurements; congestion detection, as well as cycle and pedestrian detection, for varied applications, in both urban and inter-urban environments. City and regional authorities and light-
ing manufacturers themselves are now recognising the capability and adaptability of deploying radar detection solutions for international lighting applications across various sectors to help achieve energy effi- ciency targets and generate significant cost savings. A significant advantage for road author-
ities is that radars already in deployment in road networks can therefore serve a dual
purpose – both as a means of vehicle, cycle or pedestrian detection and traffic flow monitoring and to control lighting levels. With budgetary
restrictions still in
place and keeping a tight lid on costs a key consideration for many authorities, the deployment of dynamic street light- ing control using data from pre-existing traffic management systems, rather than installing a new streetlight control system with its own dedicated sensors, represents a sizeable cost saving.
MEETING REQUIREMENTS Road authorities and lighting manufacturers
FOOTNOTES 1
https://www.gov.uk/government/policies/reducing-the-uk-s-greenhouse-gas-emissions-by-80-by-2050 2
www.greeninvestmentbank.com 3
www.greeninvestmentbank.com 4 Lighting the way: Perspectives on the global lighting market, McKinsey & Company 5
www.greeninvestmentbank.com
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