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Urban traffic planning simulation method and system based on multi-agent activity model

A technology of activity model and urban traffic, which is applied in the traffic control system of road vehicles, traffic control system, and special data processing applications, etc. Traffic congestion, strong real-time performance, and high accuracy effects

Inactive Publication Date: 2012-10-24
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Application Information

AI Technical Summary

Problems solved by technology

The amount of data and the amount of calculation are extremely large, and it is difficult for general personal computers to meet the requirements

Method used

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  • Urban traffic planning simulation method and system based on multi-agent activity model
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  • Urban traffic planning simulation method and system based on multi-agent activity model

Examples

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Embodiment Construction

[0043] The implementation examples of the present invention will be further described below in conjunction with the accompanying drawings.

[0044] see Figure 1-9 , a simulation method for urban traffic planning based on a multi-agent activity model, the specific steps are:

[0045] Step 1. Carry out target urban road network investigation, obtain high-resolution urban road information, and generate an urban road network xml file containing multiple links and nodes; the urban road information includes road section capacity, road section length, and maximum allowable vehicle speed , the maximum flow rate, the number of lanes and the location of the station, assign a unique id to each link and node, all road information is stored in the file related to this id, and each node has a unique two-dimensional coordinates.

[0046] Step 2, extracting 5-10% of the sample population of the target city, and conducting a survey on its traffic travel behavior; the focus of the behavior su...

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Abstract

The invention relates to an urban traffic planning simulation method and system based on a multi-agent activity model. The method comprises the following steps: firstly acquiring urban road information to generate a road network information file; secondly, generating initial traffic requirements and an initial daily activity plan according to the acquired survey data; thirdly, loading the daily activity plan to the road network information file; fourthly, calculating a utility value and planned selective probability for each surveyed object; and finally, performing an iterative process to output the simulation result. The system comprises a client end and a server client which communicate in an http communication manner. According to the invention, a four-stage traffic simulation method is discarded; a traffic requirement generating and distributing method based on the activity model is completely adopted; a multi-agent technology and a genetic evolution algorithm are integrated for use; utility optimal limitation is used to generate and select an optimal path, so that maximum utilization efficiency of a vehicle and a road network is achieved, and traffic accidents and traffic jams are reduced.

Description

technical field [0001] The invention relates to an urban traffic planning simulation method and system, in particular to a multi-agent activity model-based urban traffic planning simulation method and system. Background technique [0002] Traffic is the lifeblood of urban life and the main carrier of people flow, material flow, capital flow and information flow in social and economic activities. with increasing effect. The traffic road network reflects the level of urban traffic planning and is the result of the joint action of the government, real estate developers, and citizens. [0003] Urban traffic is the most critical and important part of the entire traffic system. It is a complex large system that involves many factors such as people, vehicles, and roads. Any inconsistency in one or more of them will lead to traffic jams, thereby It affects the normal operation of the city and reduces people's daily work efficiency. With the development of the economy and the incre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G08G1/00
Inventor 许进李谦
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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