Dynamic traffic network urban road feature model and modeling method thereof

A road model and dynamic technology, applied in the field of geographic information systems, can solve the problems of weak analysis performance of traffic operation capacity, incapable of real-time adjustment and comparison, non-dynamic, etc., achieve high traffic trend prediction accuracy, and realize road network structure The effect of optimizing, ensuring consistency and accuracy

Active Publication Date: 2014-01-22
WUHAN XUYUN TECH
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AI Technical Summary

Problems solved by technology

[0010] (1) There is a problem of data consistency in the traditional GIS-T data layering model. The traffic data model is mainly for the purpose of navigation, but the analysis performance of the traffic operation ability is weak
[0011] (2) The traditional road network mode

Method used

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  • Dynamic traffic network urban road feature model and modeling method thereof
  • Dynamic traffic network urban road feature model and modeling method thereof
  • Dynamic traffic network urban road feature model and modeling method thereof

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Embodiment Construction

[0083] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0084] A layered model of GIS-T data, including four sublayers: city plan, urban traffic road topology map, GIS urban traffic road vector diagram, and GIS urban traffic road network element vector diagram (including GIS vehicle operation mapping auxiliary sublayer).

[0085] The present invention provides a dynamic traffic road network urban road element model modeling method, the steps are as follows figure 2 Shown:

[0086] Step S1: Extract the topological map of urban traffic roads according to the urban plan, such as figure 1 shown.

[0087] Step S2: According to the topological map of urba...

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Abstract

The invention discloses a dynamic traffic network urban road feature model and a modeling method thereof. The dynamic traffic network urban road feature model comprises a dynamic traffic network urban road model, a dynamic traffic network running model, a dynamic traffic urban vehicle model and a control center model. The invention aims to solve the problems of poor data consistency and incapacity of carrying out real-time dynamic regulation of a conventional urban traffic network data model, and provides a GIS-T (Geographic Information System for Transportation) data hierarchical model, and the dynamic traffic network urban road feature model is established. Compared with the conventional urban traffic network data model, the dynamic traffic network urban road feature model comprehensively describes urban traffic feature information from macroscopic view to microscopic view, realizes optimized expression of the feature model and optimization of a road network structure and realizes dynamic simulation and regulation of traffic objects.

Description

technical field [0001] The invention relates to the technical field of geographic information systems, in particular to a dynamic traffic road network urban road element model and a modeling method thereof. Background technique [0002] The urban traffic road network undertakes the tasks of national and urban development, construction and operation, and is also the basic facility for residents' daily work and life. Problems such as traffic congestion, traffic safety, traffic environmental pollution and traffic energy consumption, which are common in big cities, have attracted more and more attention from the society. However, urban traffic problems cannot be separated from the urban space and use mathematical and physical models to simulate the movement and interaction of traffic flow. It is necessary to combine the concepts and methods of space in order to analyze and study traffic problems and their impact on the city and the entire road network more effectively. [0003]...

Claims

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Application Information

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IPC IPC(8): G08G1/00
Inventor 徐正全王争鸣王涛
Owner WUHAN XUYUN TECH
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