`` They 're vision-based systems , the idea being traditional vision systems London to have traffic lights that count the number of people waiting for the ` ` green man '' known as ` ` SCOOT , '' it will adjust the walk time at lights . More people waiting at a light means they will get more time to cross the road . The SCOOT system already regulates London 's traffic flow and has cut it by 50 % .
London to have traffic lights that count the number of people waiting for the ` ` green man '' known as ` ` SCOOT , '' it will adjust the walk time at lights . More people waiting at a light means they will get more time to cross the road . The SCOOT system already regulates London 's traffic flow and has cut it by 50 % .