Functionality
The red/green dots mark the TAPS detectors. The sensor data is sent in real time to the gateway, which is in direct communication with the traffic light system. Of the total of 16 sensors installed, four are used for congestion detection (the last four in the picture) and twelve sensors provide information about the occupancy of the respective lanes.
The congestion detectors recognise a developing backlog at an early stage and forward this to the traffic light system. From there, the light signals are switched so that the traffic continues to flow as efficiently as possible. In order to implement this type of congestion detection with induction loops, it is necessary to cut open the road by more than 60 metres. The TAPS system, on the other hand, provides adaptive congestion monitoring with little infrastructure. The sensors are embedded in the roads by means of core drilling, which does not hold up traffic for long and drastically reduces road works.