A device has been invented by a German car-maker that will let the motorists to avoid red lights. The name of this gadget is Travolution and it informs the drivers to drive at a specific speed so that when they arrive at the traffic lights, it is green.
The formula behind this gadget is that once installed inside the car, it plots the position of the vehicle and the distance from the next set of traffic signals. Following this, the optimum speed is displayed by it on a screen.