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An estimation method of road network carrying capacity based on macroscopic fundamental graph

A macro basic diagram, technology of bearing capacity, applied in the field of vehicle transportation

Active Publication Date: 2022-07-29
南京泛析交通科技有限公司
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Problems solved by technology

It can be seen that speeding up road construction is not the fundamental solution to road congestion, but can only alleviate road congestion in the short term.

Method used

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  • An estimation method of road network carrying capacity based on macroscopic fundamental graph
  • An estimation method of road network carrying capacity based on macroscopic fundamental graph
  • An estimation method of road network carrying capacity based on macroscopic fundamental graph

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Embodiment Construction

[0071] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0072] see Figures 1 to 8 , in an embodiment of the present invention, a method for estimating the carrying capacity of a road network based on a macroscopic basic graph.

[0073] A method for estimating the carrying capacity of a road network based on a macroscopic fundamental graph, comprising:

[0074] S1: Select a road network with a large traffic flow, construct a road network topology, collect the original data of vehicle numb...

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Abstract

The invention discloses a road network bearing capacity estimation method based on a macroscopic basic diagram, which selects a road network with a large traffic flow, constructs a road network topology, collects the original data of vehicle number plates in the road network area, and analyzes the collected original number plates. Pre-processing the license plate data, conduct statistical analysis on the processed data, reconstruct the trajectory of the vehicle after dividing the travel chain, analyze the carrying capacity of different areas of the road network, and build a road network carrying capacity estimation model based on the macro basic map. , After the overall road network is analyzed for vehicle density and flow, the road network area is further refined, and the vehicle density and flow analysis is carried out for the second time. Provide decision-making basis for alleviating urban road congestion.

Description

technical field [0001] The invention relates to the field of vehicle traffic, in particular to a road network bearing capacity estimation method based on a macroscopic basic graph. Background technique [0002] The carrying capacity of the urban road network refers to the maximum allowable capacity of the urban road network under the constraints of limited road resources and external conditions such as the environment, within a certain time and space, using traffic management technology and meeting the appropriate traffic service level. Motor vehicle trips. Improving the carrying capacity of the urban road network can effectively alleviate the problem of urban traffic congestion, thereby improving the travel efficiency and travel quality of residents. Scholars at home and abroad have conducted extensive and profound research on how to accurately estimate the carrying capacity of urban road networks. [0003] With the continuous increase in the number of motor vehicles and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01G08G1/017G08G1/065
CPCG08G1/0125G08G1/017G08G1/065G08G1/0133
Inventor 聂庆慧陆佳炜
Owner 南京泛析交通科技有限公司
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