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An Analysis Method of Intersection Control Efficiency Based on Macro Basic Graph

A macroscopic basic map and analysis method technology, applied in the field of traffic control and management, can solve problems such as inability to perform discriminant analysis well, and achieve the effect of solving excessive cost, convenient setting, and simple calculation process

Active Publication Date: 2021-06-29
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method can consider the traffic efficiency of intersections from multiple perspectives, but it cannot perform discriminant analysis well for some traffic control technologies with similar control effects

Method used

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  • An Analysis Method of Intersection Control Efficiency Based on Macro Basic Graph
  • An Analysis Method of Intersection Control Efficiency Based on Macro Basic Graph
  • An Analysis Method of Intersection Control Efficiency Based on Macro Basic Graph

Examples

Experimental program
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Embodiment 1

[0054] In order to show how to use the macroscopic basic map to realize the accurate identification of the traffic efficiency of different traffic control technologies, in this embodiment, an east-west arterial line with four level intersections is selected, and the arterial line is randomly fixed, There are three different traffic control modes of single-point optimal cycle and main-line two-way green wave, and the simulation software selected is VISSIM.

[0055] 1. Determine the scope. Such as figure 2 As shown, select an east-west arterial line with four grade intersections, set the downlink from west to east, and uplink from east to west, the design lane width is 3.5m, the speed is 50km / h, and there is no bus-only There is no widening of the road and the entrance road at the intersection. At the same time, in order to prevent vehicles from overflowing the intersection when the traffic volume increases and cause conflicts between vehicles in different directions, the VIS...

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Abstract

The present invention provides a method for analyzing the control efficiency of intersections based on macroscopic basic graphs. Firstly, the channelization mode and organizational scheme of intersections, traffic flow structures of different proportions, and traffic flow structures of different proportions are input in the background road network. According to different intersection signal control schemes calculated by the corresponding traffic control technology model, the mathematical model of the macro basic map is established, and then the macro basic map is drawn and curve fitted by collecting the parameter data of traffic flow, and then the preliminary Determine the pros and cons of traffic control technology, and then further compare the average speed of traffic flow in different intersection signal control schemes through the constant formula of traffic efficiency, so as to realize the precise selection of the pros and cons of traffic control technology. The method is simple to calculate, can accurately evaluate the intersection efficiency of traffic control technology under different traffic flow structures, and meets the actual demand for developing and effectively identifying the advantages and disadvantages of traffic control technology.

Description

technical field [0001] The invention relates to the technical field of traffic control and management, in particular, to an analysis method of intersection control efficiency based on a macroscopic basic graph, which realizes the identification of the advantages and disadvantages of traffic control technology by analyzing the macroscopic basic graph. Background technique [0002] With the rapid development of social economy and the continuous increase of the mobility of people and materials, the problem of urban traffic congestion has become more and more prominent in recent years. In many large and medium-sized cities in my country, the average one-way commuting time exceeds 30 minutes. In order to alleviate the congestion of urban road traffic, more and more traffic control technologies have been researched and put into use, and at the same time, there is an increasing need for the further development of methods for analyzing the scientific effectiveness of these traffic co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01G08G1/09G08G1/095
Inventor 黎茂盛姚力媗王永亮史峰
Owner CENT SOUTH UNIV
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