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A method for allocating traffic flow in urban road network

A technology of traffic flow and urban road network, applied in the field of traffic planning, can solve problems affecting traveler's route selection behavior

Active Publication Date: 2021-02-02
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the release of road network safety information will affect the route selection behavior of travelers, thus forming a new flow balance state in the entire urban road network.

Method used

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  • A method for allocating traffic flow in urban road network
  • A method for allocating traffic flow in urban road network
  • A method for allocating traffic flow in urban road network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] The technical scheme adopted in the present invention is a method for distributing traffic flow in an urban road network, comprising the following steps:

[0067] Step 101: Survey residents' travel safety considerations in road selection behavior, and obtain the survey results of travelers' safety considerations in road selection behavior;

[0068] Step 102: Investigate the safety performance of the urban road network, and obtain the safety performance data of each section of the urban road network;

[0069] Step 103: Calculating parameters of the safe route selection model to obtain parameter values ​​in the model;

[0070] Step 104: Using the safe road selection model, distribute the road network flow, and obtain the traffic flow of each road section under a balanced state.

[0071] Preferably, the resident trip safety consideration road selection behavior investigation in step 101 further includes the following steps:

[0072] S1: Sampling the survey objects, where...

Embodiment 2

[0109] Step 101: Survey on residents' travel safety considerations and road selection behavior

[0110] (1) Investigation method. In this embodiment, the home visit survey method is adopted to conduct sample home visits to households within the scope of the surveyed city. Among them, the sampling rate can be obtained according to the urban population in the survey area, and can be obtained from query table 1. The sampling survey adopts the stratified sampling method, and the implementation steps are as follows:

[0111] According to the existing urban traffic area division data, the traffic area is divided into several types (levels) based on the characteristics of the land use of the traffic area;

[0112] For traffic districts with the same nature, the sample size of each stratum is determined by the population of the district × sampling rate;

[0113] Random sampling home visits were conducted, and the investigators learned about the travel safety-efficiency consideratio...

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PUM

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Abstract

The invention discloses a traffic flow distribution method of an urban road network, which includes: investigation of road selection behavior of residents in consideration of travel safety, obtaining investigation results of traveler's road selection behavior in consideration of safety; investigation of urban road network safety performance, obtaining traffic information of each road section of the urban road network Safety performance data; safe route selection model parameter calculation to obtain parameter values ​​in the model; use safe route selection model to distribute road network flow and obtain traffic flow of each road section in a balanced state. The present invention starts from the traveler's safe road selection behavior and constructs a traffic distribution model, which can more accurately distribute the traffic flow of the road network when the traveler considers the path safety factor and the efficiency factor at the same time, making up for the traditional traffic distribution method that takes the traveler's safety into consideration. Consider deficiencies in routing behavior.

Description

technical field [0001] The invention relates to the technical field of traffic planning, in particular to a method for allocating traffic flow in an urban road network. Background technique [0002] The rapid development and widespread popularization of intelligent transportation systems provide a new way to improve traffic safety. Publishing traffic safety status information through the travel information system can provide travelers with a safer travel path, which can effectively improve travel safety. However, the release of road network safety information will affect the route selection behavior of travelers, thus forming a new traffic balance state for the entire urban road network. Therefore, it is proposed to provide a method that, on the basis of known traveler’s route selection behavior based on efficiency considerations, can reasonably quantify traveler’s consideration behavior for route safety at the same time, and based on urban residents’ travel data and urban ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01
CPCG08G1/0125G08G1/0137
Inventor 黄合来韩春阳徐光明蒋梦溪
Owner CENT SOUTH UNIV
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