A cellular automata model of traffic flow with variable probability of randomization

Research on the stochastic behavior of traffic flow is important to understand the intrinsic evolution rules of a traffic system. By introducing an interactional potential of vehicles into the randomization step, an improved cellular automata traffic flow model with variable probability of randomiza...

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Published in:Chinese physics B 2015-05, Vol.24 (5), p.627-633
Main Author: 郑伟范 张继业
Format: Article
Language:English
Subjects:
Cellular automata
Decision making
Evolution
Mathematical models
Randomization
Traffic engineering
Traffic flow
Vehicles
交通流模型
交通系统
元胞自动机模型
决策过程
概率
演化规律
相互作用
随机变量
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creator 郑伟范 张继业
description Research on the stochastic behavior of traffic flow is important to understand the intrinsic evolution rules of a traffic system. By introducing an interactional potential of vehicles into the randomization step, an improved cellular automata traffic flow model with variable probability of randomization is proposed in this paper. In the proposed model, the driver is affected by the interactional potential of vehicles before him, and his decision-making process is related to the interactional potential. Compared with the traditional cellular automata model, the modeling is more suitable for the driver＇s random decision-making process based on the vehicle and traffic situations in front of him in actual traffic. From the improved model, the fundamental diagram （flow~tensity relationship） is obtained, and the detailed high-density traffic phenomenon is reproduced through numerical simulation.
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source Institute of Physics
subjects Cellular automata
Decision making
Evolution
Mathematical models
Randomization
Traffic engineering
Traffic flow
Vehicles
交通流模型
交通系统
元胞自动机模型
决策过程
概率
演化规律
相互作用
随机变量
title A cellular automata model of traffic flow with variable probability of randomization
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