Traffic signal control method under outermost lane closed condition of multi-lane expressway

Abstract

The invention discloses a method for controlling traffic signals under the closed condition of a lane on the outermost side of a multi-lane highway. The method comprises steps as follows: collecting traffic data; determining weighted average acceleration; determining the length of a buffer area and the position of a stop line; determining the length of a lane change non-permissible area; determining a signal control scheme; implementing signal control. According to the method, various traffic flow messages of an upstream section and a construction section of a closed construction area of the highway are collected, so that the length of the buffer area, the position of the stop line and the length of the lane change non-permissible area of each lane in the direction influenced by the construction area are designed and determined; according to the signal control scheme obtained through computation, wayleave allocation is performed on a blocked lane and a non-blocked lane in the direction of the construction area; according to the method, the traffic flow passage of the lanes in the direction influenced by the closed construction area in the highway is controlled through signals, vehicle confluence and free interweaving caused by lane reduction are reduced, the safety of traffic circulation is improved, and the method has great realistic significance.

Description

technical field

[0001] The invention belongs to the field of highway traffic operation and organization technology and traffic control, and in particular relates to a traffic signal control method under the condition that the outermost lanes of a multi-lane expressway are closed. Background technique

[0002] Expressways are high-grade highways, which refer to highways that can adapt to the annual average day and night passenger car traffic volume of more than 25,000 vehicles, are designed for high-speed driving in separate lanes, and all access and exit are controlled. With the rapid development of my country's social economy, expressway is also playing an increasingly important role. On June 20, 2013, the Ministry of Transport further improved my country's national expressway network in the "National Highway Network Planning (2013-2030)", adding two north-south longitudinal lines in the west, forming seven The "71118" network consisting of radial lines from the capital, 11...

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