A Control Method of Arterial Intersection Based on Fuzzy Control

Abstract

The present invention relates to a fuzzy control-based arterial intersection control method, comprising: S1, calculating the timing basic parameters of the arterial intersection signal phase; S2, calculating the timing advanced parameters in the saturated and unsaturated state of the intersection; S3 1. Divide the arterial line between the intersections into detection section, the first subsection and the second subsection; S4, respectively determine the exit flow index, queuing dissipation index and downstream section flow index of the intersection phase; S5, calculate the main line Coordination control index; S6, determine the upstream congestion index of the intersection phase; S7, design the coordination fuzzy controller of the arterial line to output the estimated display time of the green light; S8, determine the coordination constraint index of the arterial line; S9, calculate the display green light time of the intersection phase . Compared with the prior art, the present invention is based on a fuzzy control method, and starts from logic involvement and time-space relationship, effectively guarantees the close connection between the main road and the secondary main road, and realizes the goal of timing optimization.

Description

technical field [0001] The invention relates to the technical field of traffic control, in particular to a method for controlling an arterial intersection based on fuzzy control. Background technique [0002] Arterial intersection control is to connect multiple intersections on the arterial line as the research object, and at the same time design a coordinated signal timing scheme for each intersection, so that vehicles traveling on the arterial line can obtain the right of way without stopping as much as possible. The current control method of arterial intersections mainly adopts green wave coordinated control. The basic idea is to coordinate the time difference between the green lights at each intersection to ensure that after the vehicle passes the green light at the first intersection, it will pass through the subsequent intersections with green lights all the way; or enter the downstream. After the road segment, follow the rear vehicle of the vehicle ahead to form a con...

AI Technical Summary

Problems solved by technology

[0003] The green wave coordinated control method is based on the comprehensive design of signal phase, channelization, and timing, which can meet the traffic demand of less parking and no parking, but ignores the connection between the main road and the secondary arterial road (such as the exit ramp), and cannot comprehensively perceive Upstream road sections, detection road sections, exit ramps, exit roads, and adjacent phase queuing conditions cause vehicles to often encounter red lights when driving to downstream intersections, or when vehicles reach the tail of the downstream queue, the vehicles at the tail of the queue are still in a stopped state, forcing vehicles to Parking and queuing, part of the traffic flow requires additional travel time and space costs, which reduces the capacity of the ramp, that is, it is impossible to design an on-demand optimized signal timing scheme for the saturation and unsaturation of the intersection capacity

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