To ensure the performance of the transport infrastructures required to guarantee sufficient mobility and, in particular, to activate existing performance reserves, great importance is attached to traffic management measures. As part of dynamic traffic management, a variety of traffic control systems are designed to help distribute traffic flows more evenly in the network, equalize peak loads, and thus handle traffic in a more compatible manner. This can be done by messages (e.g. traffic radio), by guidance (e.g. variable message signs or navigation devices) and by regulations (e.g. speed limits via route guidance systems).
In the research project wiki, the effects of traffic control systems that influence route choice and departure time choice in motor vehicle traffic are investigated. Collective systems (traffic radio, variable message signs), as well as individual systems (various forms of navigation systems), are considered. To quantify the interdependencies, the traffic behavior of motorists in a test area is be recorded using various complementary methods:
The combination of these three survey methods makes it possible to capture all presumed variables influencing route choice. The behavioral data obtained in this way are fused with the traffic situation data collected at the same time from license plate recognition and other sources. This database is then the basis for analyzing the variables influencing route choice and departure time choice behavior. Based on the interdependencies between information and behavior that are relevant for route choice, the potential of the investigated traffic control systems is estimated in the second step to be able to give concrete recommendations for future traffic control systems and to further optimize the operation of the existing systems. To this end, the magnitude of optimization potentials in terms of time expenditure and fuel consumption will be quantified.