Intersection signal optimizing control method in heterogeneous traffic state

A technology for optimizing control and traffic status, applied in the direction of controlling traffic signals, etc., can solve problems such as single, efficient control, and unsuitable intersection signal control

Active Publication Date: 2015-12-30
SOUTHEAST UNIV
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  • Abstract
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Problems solved by technology

However, the existing intersection signal control method is mainly based on motor vehicles, and it is not suitable for the intersection signal control under the unique heterogeneou...

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  • Intersection signal optimizing control method in heterogeneous traffic state
  • Intersection signal optimizing control method in heterogeneous traffic state
  • Intersection signal optimizing control method in heterogeneous traffic state

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Embodiment Construction

[0103] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0104] Such as figure 2 As shown, it is a schematic diagram of the operation of heterogeneous traffic flow at the measured single-point intersection. The four vehicles of human bicycles, electric bicycles, buses, and cars drive together and interfere with each other, resulting in chaotic traffic at the intersection and increased traffic delays. Based on this current situation, the applicant proposes the technical solution of the present invention.

[0105] Such as figure 1 Shown, a kind of intersection signal optimization control method of heterogeneous traffic state of the present invention, comprises the following steps:

[0106] Step 10) deploy video detectors to identify the heterogeneous traffic characteristics at the entrance;

[0107] Step 10), specifically including steps 101) to 105)

[0108] Step 101) Select the intersection w...

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Abstract

The invention discloses an intersection signal optimizing control method in a heterogeneous traffic state. The method comprises the following steps that an intersection with heterogeneous traffic flow convergence serves as a research object, a video detector is installed on the intersection, and heterogeneous traffic characteristics of all entrance lanes are identified; a vehicle driving simulation model is established according to the heterogeneous traffic characteristics of all the entrance lanes, heterogeneous traffic flows are simulated, and saturation flows of all the entrance lanes are obtained; signal parameters are optimized on the basis of an all-phase equisaturation principle, and a signal timing plan of the intersection is obtained. By means of the intersection signal optimizing control method in the heterogeneous traffic state, maximum utilization of traffic capacity of the intersection can be achieved, delay of the heterogeneous traffic flows for passing through the intersection is greatly reduced, and the operating efficiency of the signal intersection is improved.

Description

technical field [0001] The invention relates to a new intersection signal control method, in particular to an intersection signal optimization control method in a heterogeneous traffic state. Background technique [0002] Heterogeneous traffic refers to the state in which vehicles with different power performances and different physical sizes are mixed together, which is a common traffic feature in the traffic of small and medium-sized cities in my country. The conflict and interference between motor vehicles and non-motor vehicles at level signalized intersections has seriously affected the efficiency of the intersection, increased traffic safety hazards, aggravated traffic congestion, and caused huge direct and indirect economic losses. Heterogeneous traffic is a nonlinear, strongly stochastic and time-varying complex system, which has three typical characteristics: highly mixed vehicle types, no lane planning, and vehicle steering interference with each other. However, t...

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Application Information

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IPC IPC(8): G08G1/07
Inventor 任刚邢淋丽江航卢佳
Owner SOUTHEAST UNIV
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