Abstract: Traffic control system for timely signalling an obstruction in the roadway as a result of accidents, traffic jams etc., in order to signal the presence of the obstruction to the arriving vehicles. The control system consists of a plurality of autonomous cooperating detecting units distributed along the road, wherein each detecting unit includes a control plant formed by a sensor of the presence of motor-vehicles, a timer unit receiving the signals provided by the sensor when the vehicles are passing and letting only a signal longer than a pre-established time to pass, in the case in which a vehicle column has been formed, and a central control unit receiving the signals from the sensor and the timer unit and adapted to control an alarm when the column is formed, and radio-transmitter units and radio-receiver units. The system is housed inside an envelope shaped preferably as a curbstone.

Abstract: Traffic control system for signalling timely any obstruction on the road determined by accidents, jaims etc., in order to signal the presence of still motor-vehicles to the vehicles being arriving.