A method for simulating traffic flow in an urban road section
A technology of traffic flow and road sections, which is applied in the field of traffic engineering, can solve the problems of large manpower and financial resources in experimental data, and difficulty in representing traffic flow, and achieve the effect of reducing the input of manpower and material resources
Active Publication Date: 2019-01-29
FUZHOU UNIV
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Problems solved by technology
These are often difficult to describe uniformly with simple mathematical simulations
In addition, there are currently many experimental studies on the verification of traffic flow theoretical models based on statistical analysis of traffic image data of a certain road section. The acquisition of experimental data often requires a lot of manpower and financial resources, and it is difficult to have a wide range of traffic flow representation.
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[0046] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0047] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0048] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combina...
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The invention relates to a method for simulating the traffic flow of an urban road section, which comprises the following steps: firstly, initializing the vehicle data and the road data, grid the cellspace, and selecting an appropriate cell length; then the basic assumptions and conventions before the simulation are carried out; then the driver's driving intention is described by probability theory; initializing the cell state; the simulation strategy is selected; the vehicle is then generated at the edge; the vehicle position and status are updated, and the traffic light status is updated; finally, steps S6 and S7 are repeated until the simulation is completed. The invention simulates the traffic flow of the urban road section based on the cellular automata model and the probability theory method, can provide the diversified sample data for the traffic flow theoretical model research, and can effectively reduce the human and material resources investment of the traffic flow research.
Description
technical field [0001] The invention relates to the technical field of traffic engineering, in particular to a method for simulating traffic flow in urban road sections. Background technique [0002] Traffic flow theory is a theory that takes traffic body as the main research object and comprehensively explores the relationship between flow, density and speed. It began in the 1950s and is the basis of traffic engineering theory and one of the newly developed fields, mainly studying the law of road traffic flow. Research on traffic flow simulation usually uses mathematical models to simulate traffic flow operation rules, and the simulation results are used to reproduce the temporal and spatial variation characteristics of traffic flow. The cellular automata model has been widely used to simulate the characteristics and phenomena of various road traffic flows. At present, many patents have been authorized or are in the substantive examination stage, such as: ZL201410541168.3...
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IPC IPC(8): G06F17/50G08G1/01
CPCG08G1/0104G06F30/20
Inventor 李明林陈志颖
Owner FUZHOU UNIV