Old-fashioned street lamps may have a greater carbon footprint and cost more to LED lights. Photo: Christopher Thomond for the GuardianAdvice to the South-West of England has installed what claims to be the first system of intelligent street lighting on a busy roundabout.
More than 70 LED lights were installed at the intersection of Bath and Bristol. Their brightness automatically adjusts depending on how dark it is, but also takes into account the number of vehicles on the road at any time.
Bath and North East Somerset Council believes that it is one of the first times that the system was put in place on a busy street. It maintains that the lights will reduce carbon emissions and save ￡ 4,500 a year, although there is an initial outlay of ￡ 36,000.
At Hicks Gate Keynsham used to be illuminated by a dull yellow sodium light at night, but, under the lights LED 71, the area can become almost as bright as the light of day.
Councilman Roger Symonds, Cabinet Member for transport, said "we understand that this is one of the country's first cases of this type of technology used on a path of great traffic. The lights will adjust automatically the brightness according to time of day and also the number of vehicles on the route at various times of the night.
"The end result is that the Council, Bath and North East Somerset saves money on behalf of local taxpayers, cut our carbon footprint and makes the journey even safer because the lights illuminate the transport much more clearly for drivers and cyclists."
The Board said that and other local authorities have used LED lights in residential streets and trails of light, but believes that it is at the forefront in creating this system, with additional intelligent features, on a busy street.
Kelvin Packer, Service Manager for highways and parking, said: "depends on the outcome of this test, there is the possibility of extending this lighting and associated benefits to other areas of the neighborhood."
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