Abstract: The invention relates to an apparatus in a vehicle (1) for producing and wirelessly transmitting messages to vehicles (11) which are set up to receive such messages, having a communication means (2) and activation means (3), where activation by the activation means (3) is used to transmit messages from the communication means (2) which comprise at least information about the position and speed of the vehicle (1). In line with the invention, the communication means (2) is in the form of part of a unit (5) in the vehicle for determining road tolls, the activation means (3) is in the form of a direction-of-travel indicator operating element, and the messages are sent to the vehicles (11) from the communication means (2) using a control center (6) which is set up to manage road tolls.

Abstract: The invention relates to an integrated traffic surveillance system having devices for measuring environmental and weather data, having traffic sensors, and a traffic surveillance control centre for storing and processing the detected data, and communication devices for carrying out the data exchange with the measuring devices and with the data users. The invention also relates to a driver assistance system which operates autonomously or is part of the integrated traffic surveillance system. It is proposed according to the invention that in order to reduce the environmental pollution the integrated traffic surveillance system and/or the driver assistance system take actions to control a traffic system. The control actions comprise the output of information, warnings and/or recommendations to road-users, interventions in the infrastructure and/or interventions in the vehicle.