Method and device for identifying weak units in road traffic network and storage medium
A road traffic and road technology, applied in the field of transportation, can solve problems such as affecting the normal operation of the city and affecting the connectivity of the road traffic network.
Active Publication Date: 2020-10-30
中国兵器科学研究院
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Problems solved by technology
However, the road traffic network is objectively vulnerable, and there are some weak units in the network. If these units are attacked and fail, the connectivity of the road traffic network will be seriously affected, and then the normal operation of the city will be affected. Therefore, how to identify the road traffic network The weak unit in is a concern to be considered
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[0080] In order to better understand the technical solutions provided by the embodiments of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation manners.
[0081] In order to facilitate those skilled in the art to better understand the technical solution of the present application, technical terms involved in the present application will be described below.
[0082] Road traffic network: A network topology that can be created based on the actual urban traffic system, where the endpoints of real roads and the intersections of different roads are regarded as nodes, and the endpoints of real roads and the sections between different road intersections It is regarded as the edges connecting the above-mentioned nodes, and the network topology thus constructed is the road traffic network in the embodiment of the present application.
[0083] Road elements: nodes in the road traffic network or pas...
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The invention provides a method and device for identifying weak units in a road traffic network and a storage medium, relates to the technical field of traffic, and is used for identifying the weak units in the road traffic network. The method comprises the steps of extracting each traffic unit in a road traffic network , each traffic unit comprising at least one road element in nodes and passingpaths in the road traffic network, the passing paths being obtained by identifying connecting edges connected with the nodes, and the nodes representing endpoints of roads or intersections of the roads; determining a network connectivity value of each traffic unit, wherein the network connectivity value is determined by identifying disconnected node pairs caused by failure of each traffic unit; and identifying the weak units in the traffic units according to the network connectivity values and the connectivity value thresholds of the traffic units. According to the method, the influence degreeof each traffic unit on the road traffic network is determined according to information of disconnected node pairs caused by failure of each traffic unit, and then the weak units having high influence on the road traffic network are identified.
Description
technical field [0001] The present application relates to the field of traffic technology, and in particular to a method, device and storage medium for identifying weak units in a road traffic network. Background technique [0002] The urban road traffic system is an important lifeline system of the city and the basis of social and economic activities; the road traffic network is created based on the urban traffic system, and its efficient operation supports the efficient operation of the city. However, the road traffic network is objectively vulnerable, and there are some weak units in the network. If these units are attacked and fail, the connectivity of the road traffic network will be seriously affected, and then the normal operation of the city will be affected. Therefore, how to identify the road traffic network The weak unit in is a problem to consider. Contents of the invention [0003] Embodiments of the present application provide a method, device and storage me...
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Login to View More IPC IPC(8): G08G1/01
CPCG08G1/0104G08G1/0125
Inventor 田建辉许项东刘冰经维维李军江金寿叶金华王晓悦陈科何圣华
Owner 中国兵器科学研究院