Research in C2C communication is being conducted to define a universal standard for communication between vehicles, as sharing information is expected to yield great improvements in road safety.
For example, if a vehicle encounters an adverse condition such as a traffic jam, fog, an icy road surface or an accident, it will transmit this information to all potentially affected vehicles in the area. Approaching traffic is alerted, allowing drivers to adjust their driving to the upcoming situation.
In the tests at the testing grounds in Dudehofen, the Passat and the Golf acted as a sender, receiver and transmitter. Ad-hoc networks based on wireless LAN technology exchanged data between the vehicles. The following situations were simulated in the demonstration: motorcycle at an intersection, stationary vehicle, construction site and police car in action.
Data access was provided by a ‘CarGate’ which creates an abstract of the vehicle data, thus allowing simple access to a multitude of information, e.g. road speed, engine speed, wheel speeds or status of the hazard flashers.