A Road Segment Detection Method Considering Traffic Demand and Road Network Operational Efficiency
A technology of traffic demand and operating efficiency, applied in traffic flow detection, traffic control system, traffic control system of road vehicles, etc., can solve problems such as judging road status, unable to change, unable to directly formulate and improve road network operating efficiency, etc. Achieve the effect of reducing management costs and improving operating efficiency
Active Publication Date: 2020-02-18
SOUTHEAST UNIV
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2. Since these two inventions are for the calculation and judgment of the instant state of the road network, there is no method for analyzing the road state that may change in the future, so the above two inventions fail to establish the state of the road network based on the consideration of changes in traffic demand Therefore, it can only rely on real-time collected data to judge the road traffic status in real time, and cannot judge the status of the road according to the change of traffic demand.
3. Since the above two inventions are only the detection of the existing road network, and no optimization scheme has been proposed, based on the detection results of the above two inventions, it is impossible to directly formulate measures to improve the operation efficiency of the road network
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[0040] The present invention will be further explained below in conjunction with examples and the accompanying drawings of the specification.
[0041] The road section detection method considering traffic demand and road network operation efficiency of the present invention includes the following steps:
[0042] 1) Obtain the topological structure of the road network from the urban traffic road network.
[0043] According to different geographical locations and traffic factors, different areas of a city can usually be divided into different traffic districts. Each district is usually both a source of traffic travel and a source of attraction for traffic travel. For traffic travel in one direction, when a cell is the source of travel in that direction, it is called the starting point or point O of the traffic trip, and the traffic volume from this cell is represented by the symbol q r, · Means; when a cell is the source of attraction for travel in this direction, it is called the end...
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The invention provides a road segment detection method considering the traffic demand and road network operation efficiency, which obtains the generalized travel cost and other information of each urban road in an urban road network by collecting and sorting related travel data of the urban road. By measuring the traffic demand and establishing a travel demand OD matrix and an algorithm based on auser equilibrium model, it is possible to find invalid road segments in the urban road network under the current traffic demand level. Through matrix transformation of the road segment cost and the route cost, the method allows traffic managers to know the timing of the change of the effectiveness of the road segments when the traffic demand changes. The advantages of the invention lie in that the detection method can be used to analyze the validity of the road segments in real time and can be used to analyze complex urban road networks of multiple OD pairs; and with the method, the traffic managers do not need to change hardware facilities of the road network and can timely restrict and open such road segments in the road network to improve the overall operation efficiency of the urban road network.
Description
Technical field [0001] The invention relates to a road section detection method, in particular to a road section detection method considering traffic demand and road network operation efficiency. Background technique [0002] With the rapid development of information technology in the field of urban transportation, the demand for travel information and technology in the whole society has increased. As one of the main purposes of urban traffic management, keeping the urban transportation network unobstructed has played an important role in the production and life of urban residents. Improving the overall operation efficiency of the urban road network is the main means to keep the urban transportation network unobstructed. As an important way to keep the city's traffic network unblocked, it occupies an important position in traffic management. From the perspective of urban transportation network models, improving the overall operating efficiency of the network is by no means a sta...
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IPC IPC(8): G08G1/01G07B15/06
CPCG07B15/06G08G1/0137
Inventor 程琳马捷李大韦
Owner SOUTHEAST UNIV