To provide a tunnel traffic flow monitoring system capable of accurately grasping a traffic state of a vehicle in a tunnel to perform necessary countermeasures.SOLUTION: A pair of vehicle sensors 60, 62 are arranged in the right and left vicinity in a tunnel longitudinal direction of a hydrant device 10 installed at a prescribed interval in the longitudinal direction of a tunnel 100, vehicles passing in front of the hydrant device 10 are detected, the vehicle information including at least the number of vehicles which have passed and their vehicle speed is measured for each installation place of the hydrant device 10 on the basis of the detection signal of the vehicle sensor 60, 62 and is sent to a disaster prevention receiving board. A traffic judging part of the disaster prevention receiving board obtains, for example, an average vehicle speed on the basis of vehicle measurement information measured on the hydrant device 10 side, displays a distribution of the average vehicle speed in the tunnel, and judges a vehicle traffic state such as a congestion occurrence in the tunnel.SELECTED DRAWING: Figure 1
トンネル内交通流監視システム
2021-12-17
Patent
Elektronische Ressource
Japanisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / E21F Sicherheitsvorrichtungen, Förderung, Auffüllen oder Bergversatz, Rettungswesen, Bewetterung oder Entwässerung in oder von Gruben oder Tunnels , SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS |