The increasing traffic and the increasing number of sensors both in cars and in the infrastructure pose new challenges but also create new opportunities for traffic control. If the sensor data in various states of interpretation and aggregation could be shared and reused, it would be possible to minimize accidents and improve the traffic situation. In this paper we describe an approach to automatically configure sensor data fusion systems across the boundaries of independent subsystems, where information on all levels can be exchanged. The basis for this is a formal description of all required meta-information that enables the reasoning for automatic configuration.