Internet-of-vehicles-based intersection signal light split regulation method

An adjustment method and technology of intersections, which are applied in the control of traffic signals and other directions, and can solve the problems of poor traffic at intersections and low effectiveness of traffic signal light control systems.

Active Publication Date: 2014-01-08
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the low effectiveness of the intersection traffic signal light control system and the problems such as poor traffic flow at the intersection, the purpose of the present invention is to

Method used

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  • Internet-of-vehicles-based intersection signal light split regulation method
  • Internet-of-vehicles-based intersection signal light split regulation method
  • Internet-of-vehicles-based intersection signal light split regulation method

Examples

Experimental program
Comparison scheme
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Embodiment

[0161] The applicant verified based on the data of more than 4,000 taxis in Xi'an City. The simulated system crossroads in each lane in each direction is allowed to pass under the condition that the number of released vehicles is assumed to be 1,000. The vehicle departure rate u is 15 vehicles / min, and the fixed signal The period T is taken as 180s, and the value of e is 6s. emulator settings v 0 (v 0 is the initial velocity of the particle in the particle swarm algorithm) is (1,1,1,1,1), n ​​takes 25, m takes 60, w start is 0.9, w end Take 0.4, c 1start 、c 2start 、c 1end 、c 2end Take 2.5, 0.5, 0.5, 2.5 respectively;

[0162] Using this method and the traditional method (that is, each phase time is fixed) to compare and run within 6 cycles, the simulation results are shown in Table 1. In the table, tl~t6 represent the timing time of the six phases in a cycle (in seconds), and R is the number of vehicles waiting in line after optimization (in units). The optimization t...

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Abstract

The invention discloses an internet-of-vehicles-based intersection signal light split regulation method. The method comprises the following steps: performing vehicle GPS (Global Positioning System) road correction and calculating a road average speed; establishing an average speed estimation model; establishing a single-intersection signal light six-phase control system model; solving duration of each phase by using a particle swarm algorithm; performing dynamic updating of each phase time of an intersection. Field experiment application proves that the internet-of-vehicles-based intersection signal light split regulation method has a good effect, can effectively improve the vehicle traffic efficiency of the intersection and is applicable to occasions such as intersection signal light split regulation.

Description

technical field [0001] The invention belongs to the field of traffic flow parameter detection and control, relates to a method for adjusting the green signal ratio of signal lights at intersections in traffic control, and particularly designs a method for adjusting the green signal ratio of signal lights at intersections based on Internet of Vehicles. Background technique [0002] Effective control of signal lights at intersections is an important direction in the field of traffic control, especially at intersections with large traffic volumes and complex traffic conditions, the effective control of signal lights becomes particularly important. Therefore, it is of great significance to improve the control effectiveness of traffic lights at intersections. [0003] In the urban road traffic system, an intersection is a hub where two roads intersect each other and serves as a direction conversion hub. Some big cities in the world such as New York, the speed of a vehicle in the...

Claims

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Application Information

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IPC IPC(8): G08G1/08
Inventor 赵祥模徐志刚张立成程鑫梁超任亮白国柱周经美杨锋
Owner CHANGAN UNIV
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