System for determining traffic data

A system for determining traffic data, comprising at least one fahrbahnnah to be arranged traffic monitoring unit (3), at least one with the traffic monitoring unit (3) communicating external transmitting and receiving station (5), and communicating one with the transmitting and receiving station (5) external traffic data center (7 ) - wherein the traffic monitoring unit (7) for monitoring a road section a plurality of sensors (4) for the direct detection of traffic and / or vehicle-specific data, at least one processing means (8) adapted for determining the a measure of the current traffic situation in the track section representing traffic data having basis of the sensor data, and a wireless transmitter and receiver module (9) for short-range radio communication, - wherein the traffic data center (7) comprises a transmitter and receiver module (11) for wired communication, - wherein the traffic monitoring unit (3) and the traffic data center (7) for bi-directional data communication via the transmitting and receiving station (5) are formed, - and wherein the traffic data center (7) for transfer of processing and / or control related data to the traffic monitoring unit (3) is formed.