May 30, 2010
- A d v e r t i s e m e n t
The system would be able to receive position information from vehicles waiting at red lights to determine a queue of participating vehicles stopped at the signal. It would then determine the time still to elapse before the lights turn green, and if this time is over a set threshold (such as two minutes) the traffic light would then send signals to the vehicle engines to stop them.
When the lights turn green, a “start-engine notification” would be sent to the front vehicle to start its engine first, and a signal would be sent to the second vehicle in the queue an “optimal time” later, and so on.
The IBM patent says the system could be applied to traffic signals at intersections, railway crossings, or other transportation signals for “indicating correct moments to stop and to proceed.” Its stated aims are to reduce wastage of fuel and optimize the movement of vehicles through the intersection or crossing.