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Latent congested road intersection prediction method and device

A prediction method and technology of intersections, applied in the field of intelligent transportation, can solve the problems of convenient, accurate, fast, low-cost, reliable and stable road intersections, etc.

Active Publication Date: 2016-02-03
INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method and device for predicting intersections of potentially congested roads, using road network data to solve the problem of being unable to predict road intersections with a high possibility of congestion in a convenient, accurate, fast, low-cost, reliable and stable manner question

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  • Latent congested road intersection prediction method and device
  • Latent congested road intersection prediction method and device

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Embodiment Construction

[0066] At present, there is no relevant literature or public method, which can use effective micro-indices to predict intersections with high possibility of congestion on the road under the premise of fully respecting road topology, link correlation and intersection blocking factors.

[0067] In order to solve the above problems, the embodiment of the present invention provides a method and device for predicting potential congested road intersections, constructing a road topology dual graph with "segments as vertices", and introducing community discovery and physical concept theory into regionalized In the road network, not only can the target problem be solved, but also the required data and user interaction costs are low, and the running results are relatively stable.

[0068] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly ...

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Abstract

The invention provides a latent congested road intersection prediction method and device, relating to the intelligent traffic field, and can conveniently, accurately, rapidly, reliably and stably predict road intersections having a higher possibility of congestion with low cost. The method comprises: generating SHP data of roads and intersections of an object area; based on the SHP data, using road segments as peaks, and topological nodes as connecting sides to form a road network topological dual graph representing the connection relation among road segments; based on the road network topological dual graph, performing community-based agglomeration on the road segments to obtain a plurality of communities; and assessing the entropy of intersections in a community greater than a filtering threshold, and determining latent congested road intersections based on assessed entropy. The latent congested road intersection prediction method and device are suitable for conveniently, accurately and rapidly predict congestion of road intersections.

Description

technical field [0001] The invention relates to the field of intelligent transportation, in particular to a method and device for predicting potential congested road intersections. Background technique [0002] Road is one of the most important infrastructures in a city, and it is also the geographical basis for human beings to engage in various social activities. However, with the increasing urban population and means of transportation, traffic congestion has gradually become a bottleneck restricting urban development. The intersection on the road is the key node of traffic flow convergence and evacuation, and it is also the main factor of congestion. How to predict the intersection with high possibility of congestion to improve the operation and overall planning ability of the road is the current traffic department, and It is a problem that the whole country and society need to pay attention to and solve urgently. [0003] At present, a large number of methods in this fi...

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Application Information

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IPC IPC(8): G08G1/01
Inventor 姚晓婧彭玲池天河崔绍龙林晖
Owner INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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