They’re the bane of city drivers everywhere: those traffic lights that invariably turn to red just as you approach, making even the shortest journey a stop-start affair.
But now a German car-maker has come to the rescue – with a device that ensures you can always arrive at a light when it is green.
The in-car gadget tells drivers how fast to go in order to sail through a junction by ‘speaking’ to special transmitters fitted inside a traffic signal that can be up to 300 yards away.
It arrives at the calculation after plotting the car’s position and approach route, then displays the optimum speed on a screen.
Audi, which has developed the device called Travolution, claims extensive trials have been so successful that in one phase of testing, cars nearly always hit a light on green.