Telraam counts pedestrians, cyclists, cars and freight/heavy vehicles. This is done using images taken by the device camera and the analysis performed by the ‘Raspberry Pi’ (a small computer on which the device is based). The analysis simply uses the size and speed of the passing object.
Telraam does not count when it is dark.
For example, because of its size the Telraam will count a tram as a truck.
Vans can either be counted as trucks or cars, depending on their size.
Buses are counted as trucks, because of their size.