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Dynamic route guidance method oriented to urban traffic

A dynamic route, urban traffic technology, applied in traffic control systems, road network navigators, traffic control systems for road vehicles, etc., can solve problems such as high operating efficiency, turning resistance, traffic prohibitions, etc. Powerful functions and good reference value

Inactive Publication Date: 2013-05-22
PEKING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has high operating efficiency and can solve technical problems such as traffic bans, one-way restrictions, and turning resistance.
In addition, the present invention also improves twelve path planning methods such as the PSP method, the Dijkstra method, the DBFS method, the L-dequeue method, the L-2queue method, the improved Dijkstra method, the A* method, and the layered bidirectional search method. , so that it can solve technical problems such as traffic bans, one-way restrictions, and turning resistance

Method used

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  • Dynamic route guidance method oriented to urban traffic
  • Dynamic route guidance method oriented to urban traffic
  • Dynamic route guidance method oriented to urban traffic

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Experimental program
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Embodiment Construction

[0054] Preparatory work: build a development environment and develop technical routes

[0055] The dynamic route guidance method for urban traffic adopts ArcGIS Engine technology and is developed under the environment of Visual Studio 2005.NET.

[0056] The steps to build the development environment are as follows:

[0057] (1) Download and install Visual Studio 2005. Execute the installation program and install it in the default directory.

[0058] (2) Obtain ArcGIS 9.3 series software and software genuine authorization. Execute the License Manager installation program, install it in the default directory, and use genuine software authorization. Restart the computer.

[0059] (3) Install ArcMap 9.3 software, select ArcInfo, and install it in the default directory.

[0060] (4) Install ArcGIS Engine 9.3, select C#.NET programming language, and install it in the default directory.

[0061] (5) Start Visual Studio 2005, create a new project, select "ArcGIS Engine" from the...

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Abstract

The invention discloses a dynamic route guidance method oriented to urban traffic, relating to various optimal route planning methods in a geographic information system (GIS) and an intelligent traffic system. The method comprises the following steps: through taking a GIS (geographic information system) software product ArcGIS road model provided by the Environmental System Research Institute (ESRI) in America as the basis, loading a road traffic map of the Beijing city, simulating the operation efficiency of twelve route planning methods such as a PSP (play station portable), Dijkstra and soon in different road traffic conditions, and displaying the dynamic traffic information of major roads in real time to realize the presentation of the dynamic traffic flow information; and simulatingthe operation efficiency of different route planning methods in dynamic traffic condition by successfully applying the dynamic traffic flow information in the computation of the dynamic optimal route. The prototype system belongs to the field of transportation, and can be applied to the simulation experiment of the optimal route planning method in an intelligent transportation system, a vehicle navigation system and the GIS, thereby providing a reference and basis for the research on road guidance systems.

Description

technical field [0001] The invention relates to multiple optimal path planning methods in geographic information systems and intelligent transportation systems, realizes the expression of dynamic traffic flow information, and successfully applies dynamic traffic flow information to the calculation of dynamic optimal paths, and can simulate different path planning Efficiency of the method in dynamic traffic conditions. Moreover, the present invention realizes a two-way layered optimal path planning method suitable for large-scale road networks with dynamic traffic information. This method successfully solves problems such as traffic bans, turning restrictions, and one-way restrictions. Background technique [0002] A dynamic route guidance system generally consists of three parts: (1) traffic information control center, traffic information monitoring center is the main control center of the dynamic route guidance system, the main function is to obtain real-time traffic infor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/34G08G1/0969G09B29/10
Inventor 张飞舟陈嘉
Owner PEKING UNIV
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