Signal adaptive control method based on variable lane

Abstract

The invention discloses a signal self-adaptive control method based on a variable lane. The signal self-adaptive control method comprises the following steps of 1) collecting intersection data in realtime; 2) identifying an overflow state of the intersection, and judging whether overflow emergency processing is executed or not; if not, entering the step 3); if so, entering an overflow emergency disposal mode, generating an emergency timing scheme, and entering a step 6); 3) identifying the lane variable state, and judging whether to execute variable lane control or not; if so, entering step 4); if not, entering the step 5); 4) executing lane changing control, and entering the step 5); 5) entering the adaptive control mode, updating the lane attributes of the intersection, and generating the adaptive timing scheme; and 6) implementing the above generated adaptive timing scheme. According to the method, the adaptive capacity of the intersection for coping with sudden changes of trafficflow is enhanced, the space-time resource utilization rate of the intersection is increased, intersection delay is reduced, and road traffic congestion is relieved.

Description

technical field [0001] The invention belongs to the technical field of traffic control, and specifically refers to a signal adaptive control method based on variable lanes. Background technique [0002] With the rapid development of the national economy and the continuous acceleration of the urbanization process, the phenomenon of urban traffic congestion in my country is becoming more and more serious. As an important part of urban traffic system, intersection is the node of traffic network and the bottleneck of urban traffic. [0003] The traffic flow in the city is unevenly distributed in time and space, the flow direction of the intersection flow fluctuates greatly, and the left turn and straight lanes cannot be fully and balancedly utilized. How to rationally utilize the limited space-time resources at intersections under the existing road supply conditions has always been a hot topic of research by scholars at home and abroad. The traffic organization method of setti...

AI Technical Summary

Problems solved by technology

[0006] (1) At present, the existing variable lane control and signal adaptive control, the two control methods basically operate independently, without considering the overall control of the intersection, designing a unified traffic control strategy, so it cannot maximize the efficiency of intersection traffic

[0007] (2) The existing variable lane control basically analyzes and determines whether to switch the lane guidance attribute based on the traffic state of the flow direction of the entrance, and does not comprehensively consider the traffic state of the exit

[0008] (3) Most of the intersection traffic flow data collection adopts a single detection data source, which cannot comprehensively monitor the traffic operation status at the entrance and exit of the intersection; at the same time, due to the maximum detection range of the detector, it is impossible to obtain the traffic status beyond the detection range.

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