The invention relates to traffic flow monitoring devices. The system includes stationary traffic monitoring points that includes reading devices to receive data from electronic tag located on a vehicle, and is connected to a remote server that includes a database of vehicles and associated electronic tags, and their owners. The stationary traffic monitoring points are in the form of autonomous small-sized computer devices with a cellular communication module, and includes automatic devices for photo-video-radar recording and for processing information about vehicles and traffic situation, and with automatic software tools for determining the parameters of the vehicles, traffic laws and for comparing them with the permissible parameters for the particular road section. Software tools can automatically qualify the violations of the traffic safety rules and contingency events and make decisions with respect thereto, and can automatically transmit information via a mobile communication network from stationary traffic monitors to transmitter/receiver of a nearest mobile communication operator and from there to the remote server via the Internet.