These Traffic Lights Stay Green Until All The Cyclists Have Crossed The Road

The bike traffic signals use radar and thermal imaging to automatically sense how many cyclists happen to be waiting at a particular intersection, and then adjust the length of the light so everyone can cross. At rush hour, the light will be longer, and late at night it will be short, unless a midnight bike party happens by.

“If there was a sudden spurt at a particular time it could cater for them,” says Thomas Canning from Transport for London, the city agency that is testing out the new technology. The city already has similar technology to help crowds of pedestrians safely cross the road.