Flow improvement caused by agents who ignore traffic rules

Details Flow improvement caused by agents who ignore traffic rules Flow improvement caused by agents who ignore traffic rules

2009-01-22

arxiv.org/abs/0901.3513v2

Phys. Rev. E 80, 016111 (2009)

Physics

Physics and Society

7 pages, 19 figures

Scientific paper

10.1103/PhysRevE.80.016111

A system of agents moving along a road in both directions is studied numerically within a cellular-automata formulation. An agent steps to the right with probability $q$ or to the left with $1-q$ when encountering other agents. Our model is restricted to two agent types, traffic-rule abiders ($q=1$) and traffic-rule ignorers ($q=1/2$). The traffic flow, resulting from the interaction between these two types of agents, is obtained as a function of density and relative fraction. The risk for jamming at a fixed density, when starting from a disordered situation, is smaller when every agent abides by a traffic rule than when all agents ignore the rule. Nevertheless, the absolute minimum occurs when a small fraction of ignorers are present within a majority of abiders. The characteristic features for the spatial structure of the flow pattern are obtained and discussed.

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