Urban area traffic supersaturated traffic strategy control strategy

The invention provides an urban area traffic supersaturated traffic strategy control strategy, which directly or indirectly alleviates a supersaturation condition of a traffic intersection by settingdifferent detectors. According to the urban area traffic supersaturated traffic strategy control strategy, the detectors comprise a relative detector and an absolute detector, a queuing length of vehicles is calculated through detecting a number of the vehicles, further a green time is controlled according to the queuing length of the vehicles, and a downstream intersection calculates an effectivegreen time required for the vehicles to pass through a next intersection by utilizing an associated relationship according to data detected by means of the detectors at an upstream intersection, so as to optimize the green time at the downstream. Through the example of one direction, other directions are measured and calculated according to the detectors in all directions, the green time and optimization are determined by