June 7, 2005

DaimlerChrysler demonstrates car-to-car communication

Washington, D.C. – DaimlerChrysler has presented its first dynamic driving demonstration of its broadband car-to-car communication between a Mercedes-Benz E-Class and a Dodge Durango at the DaimlerChrysler Innovation Symposium.

Called Dedicated Short-Range Communication (DSRC) technology, it makes real-time communication possible between a vehicle and roadside stations, and from one vehicle to another.

The communication allows for the selective forwarding of information to help optimize traffic flow and enhance traffic safety. If a vehicle encounters a critical situation such as congestion, fog, ice or a collision, it can pass the relevant information on to all road users in the immediate vicinity of the danger spot. Cars equipped with DSRC can communicate directly with one another, making it possible to transmit braking signals back over several vehicles, giving drivers early warning that they might have to brake soon. Each vehicle within the network can take on the role of sender, receiver or router. It allows a chain of information to be passed along, like a relay race; the process, known as multi-hopping, can spread information to cover a substantial distance.

According to investigations by the U.S. National Highway Traffic Safety Administration (NHTSA), 88 per cent of all rear-end collisions are the result of inattention on the part of the driver, or of travelling too closely to the vehicle in front. DCRS can help prevent or reduce the severity of such collisions.

The system is primarily designed for traffic flow and safety, but can be used to transmit other data, such as digital music, movies or map updates for on-board navigation systems.

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