Authorities in Dayton, Ohio, fined and put on house arrest a 17-year-old high school student named Kameron Price for hacking into the city's traffic control system to make the stoplights sync up. In ...

Sensors in the ground communicate with the traffic signals to constantly retime the signals based on road conditions. If more cars are coming in one direction, the direction with heavier traffic flow ...

Traffic lights have been with us since 1868, when the first gas-powered set was switched on in London. These lights used a semaphore system similar to those used by the railways of the day and ...