Route Guidance coordinated with Traffic Management, Individual in-car-navigation in accordance with diversion recommendations of traffic control centers - technical and institutional solutions

摘要

In Germany a navigation project showed how cooperation between road authorities and navigation services can be established. Navigation systems used information and data concerning traffic management activities to provide drivers with better route guidance and - by doing so - to ameliorate traffic conditions. Traffic management of public authorities can be supported by the consideration of collective measures and information concerning traffic engineering in the navigation device on the side of the vehicle. Public administrations develop diversion recommendations for recurring events and disturbances. Examinations or simulations with suitable traffic models are base of these diversion recommendations. In this way routes are recommended, which are efficient enough to take an additional amount of traffic in specific traffic conditions. The social acceptance of dynamic navigation systems is secured for by a route choice which avoids sensitive areas, like residential areas etc. and primarily uses the main road network. An instrument was developed, that makes public diversion recommendations available and process able for individual route calculation. This so-called "Strategic Layer" is the technological translation of road closures and diversion recommendations into a format, that can be interpreted by a routing software. This enables the navigation device to react to situation dependent public inhibitions or diversions.