Several parts of the world, large cities manage high vehicular flow crossings by means of traffic cameras with turns or magnetic induction loops, but these control options require a high investment in personnel and spare parts. In the first one, a structure is needed to place the camera and for the second one, it is necessary to periodically change because the loop ends broken due to the flow of vehicles.

Sinowatcher thinking about this problem has developed a sensor model that allows us to keep a record of the vehicle flow in each lane, detect speed, the size of the queue in the lane, and work together with the crossing controller. All these data are obtained wirelessly from the crossing and are transmitted to both the controller and the city control center.