Cellular automaton model based urban road network traffic flow simulation design method

A cellular automaton and urban road network technology, applied in the field of simulation design of urban road network traffic flow, can solve the problems of reducing the authenticity of the model, and it is difficult to truly reflect the running state of the traffic flow at the intersection, so as to achieve the effect of improving the authenticity

Active Publication Date: 2015-01-21
ZHEJIANG NORMAL UNIVERSITY
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Problems solved by technology

However, the existing cellular automata models have greatly simplified the local rules of the traffic, and it is difficult to t...

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  • Cellular automaton model based urban road network traffic flow simulation design method
  • Cellular automaton model based urban road network traffic flow simulation design method
  • Cellular automaton model based urban road network traffic flow simulation design method

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Embodiment Construction

[0056] The method for simulating and designing urban road network traffic flow based on the cellular automata model provided by the present invention will be further described below in conjunction with the accompanying drawings.

[0057] The present invention provides a kind of urban road network traffic flow simulation design method based on cellular automata model; The method comprises the following steps:

[0058] (1) Establish urban road network.

[0059] The urban road network is composed of S×S roads, each road includes two lanes driving in opposite directions, and each lane is divided into L cells so that each cell can accommodate a vehicle, where the S×S road The road forms multiple intersections, and the lane-changing prohibition line is set in front of the intersection stop line. The cells at the intersection include the inner cells of the intersection and the peripheral cells of the intersection. The peripheral cells of the intersection are set around the inner cell...

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Abstract

The invention provides a cellular automaton model based urban road network traffic flow simulation design method. The cellular automaton model based urban road network traffic flow simulation design method comprises the following steps of 1 establishing an urban road network consisting of a plurality of bidirectional two-lane roads; 2 establishing an on-lane vehicle update rule; 3 establishing a vehicle update rule at intersection positions and establishing a deadlock avoiding rube, wherein vehicles on the cells in the intersections and cells on the peripheries of the intersections follow different update rules; 4 distributing N vehicles in the urban road network to perform a simulation experiment, wherein the vehicles rung by following the rule in the step 2 and the rule in the step 3; 5 acquiring outgoing data of the vehicles in the step 4 and performing calculation and analysis so as to evaluate the characteristic of traffic flows of the urban road network. By means of the cellular automaton model based urban road network traffic flow simulation design method, the running states of complicated traffic flows of the bidirectional two-lane roads and the intersections can be really reflected, and the truthfulness of traffic simulation can be improved.

Description

technical field [0001] The invention relates to the technical field of traffic engineering, in particular to a simulation design method for urban road network traffic flow. Background technique [0002] Traffic simulation is a traffic analysis technology and method that uses computer digital models to reflect complex traffic phenomena developed with the advancement of computing technology. In recent decades, researchers in different fields have analyzed the characteristics of road traffic flow from their own perspectives, and established many traffic flow theories and models. Among them, the two-dimensional cellular automata model is an effective tool to study the traffic flow of urban road network. However, the existing cellular automata models have greatly simplified the local rules of the traffic, and it is difficult to truly reflect the complex traffic flow at the intersection, which greatly reduces the authenticity of the model in traffic simulation. Contents of the ...

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Application Information

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IPC IPC(8): G06F17/50
Inventor 施俊庆程琳胡永举李磊黄芳
Owner ZHEJIANG NORMAL UNIVERSITY
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