“Green” speed bumps that will generate electricity as cars drive over them are to be introduced on Britain’s roads. The hi-tech “sleeping policemen” will power street lights, traffic lights and road signs in a pilot scheme in London that could be rolled out nationwide.
The ramps – which cost between £20,000 and £55,000, depending on size – consist of a series of panels set in a pad virtually flush to the road. As the traffic passes over it, the panels go up and down, setting a cog in motion under the road. This then turns a motor, which produces mechanical energy. A steady stream of traffic passing over the bump can generate 10-36kW of power.
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