Signal control method for high density road grid in traffic rush hour

Abstract

The invention provides a method for controlling signals in a high-density road network during traffic peak. According to the total of traffic flows in the high-density road network, the method collects basic data about the high-density road network, which includes traffic static data, traffic dynamic data, and decision-making data from a decision maker, wherein, both the traffic static data and the decision-making data from the decision maker are classified as static data which is acquired from a static database of the high-density road network; the traffic dynamic data is classified as dynamic data which is gathered through traffic flow detection equipment; and a signal control scheme characterized by relatively long green light time length and red light time length is generated and applied to all signal intersections within the high-density road network. By controlling the total of the traffic flows within the high-density road network and realizing coordination among the intersections, the invention achieves the effects of improving the circulation efficiency of the traffic flows at all the intersections within the high-density road network during the traffic peak and reducing delays at the intersections for vehicles, thereby realizing efficient operation of the high-density road network.

Description

technical field [0001] The invention relates to generating a signal control scheme with the characteristics of longer green light duration and red light duration according to the traffic volume of the high-density road network traffic flow during the traffic peak period, and uniformly applying the signal control scheme to the high-density road network All signalized intersections. In order to improve the traffic efficiency of motor vehicles in the high-density road network, avoid frequent deceleration, parking, starting, acceleration and other phenomena when motor vehicles pass through the intersection, and reduce the delay of motor vehicles at intersections. The utility model belongs to the field of urban road traffic control. Background technique [0002] High-density road network mainly refers to an orthogonal checkerboard network structure composed of 2-4 lane roads with thin and dense roads, the average road spacing is less than 300m, the road network density is evenly...

AI Technical Summary

Problems solved by technology

However, when the traffic is in the peak period, the traffic volume entering the high-density road network is large, causing the traffic demand in the high-density road network to be far higher than the traffic supply capacity, and there is no redundant space-time resource in the road network for the signal control system. distribution, so that signal control methods such as timing control, induction control, and green wave control cannot improve the traffic efficiency of each intersection in a high-density road network

[0006] The inventors have found through long-term research that the main reasons for the unsatisfactory signal control effect in the high-density road network during the traffic peak period are: first, the traffic demand in the high-density road network is far higher than the traffic supply capacity, and the high-density road network There are not enough space-time resources for signal control and deployment; second, the correlation between adjacent intersections in the high-density road network is large, causing the traffic flow between adjacent intersections to affect each other, causing traffic congestion, and it is difficult to improve traffic efficiency at the intersection

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