Cars will communicate with traffic lights

American concern General Motors has started testing the information system in which the vehicle and the traffic light can share some data. The testing was the GM engineers in Michigan USA, and the functionality is called V21.

The role of the test vehicle complied with the model Cadillac CTS. The transmission of information was carried out from a traffic light to the car, and in the opposite direction. Moreover, the information to the traffic light will not be transmitted from one vehicle approaching the intersection, and from several. Thus formed a kind of a certain network.

The system operates at the expense of the DSRC Protocol and has the ability to take and give a signal to the hundreds, and even thousands of cars. The range of the network is 300 metres away.

First of all, this new system of "communication" of the car and the traffic light is designed for safety and orderly traffic at intersections. A vehicle approaching the intersection with such "smart" traffic lights retrieves information about how the time machine approach directly, and which at this point will light the signal. The car then receives a recommendation to accelerate or on the contrary to slow down. The same applies to the cars equipped with autopilot, but in this case the computer itself will choose the speed limit.

In addition, the information is transferred, in the case if a vehicle in front for several cars, made an emergency brake. Also sent a message about the condition of the roadway, weather and emergency.

Inventors V21 assure that no confidential data when such a system is not transmitted. Even if the driver violated the rules of movement and will pass the intersection on a red signal of a traffic light.