Tunnel traffic control system and traffic control method suitable for low-grade highway

The invention discloses a tunnel traffic control system suitable for a low-grade highway and a traffic control method. The system comprises a temperature sensor, a smoke sensor, a human body sensor, a jet fan, an LED guide assembly and a management station control module. The method comprises the steps of receiving temperature data everywhere in a tunnel; the detection temperature is judged; fire early warning is given out, the LED guide assembly is started, and the fire position is obtained; acquiring a traffic control scheme for pedestrians; according to the invention, the local flat guide is arranged, a plurality of sensors are arranged in the tunnel, then the management station control module formulates a corresponding guide indication path and a smoke exhaust path, and finally traffic control is realized through the LED guide assembly, so that when an accident occurs in the low-grade highway super-long tunnel, the jet fan and the LED guide assembly are matched to realize the traffic control. Vehicles and