Flow improvement caused by agents who ignore traffic rules.
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) , and the traffic flow, resulting from the interaction between these two types of agents, which 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.
Baek
Seung Ki
SK
Department of Physics, Umeå University, 901 87 Umeå, Sweden.
Minnhagen
Petter
P
Bernhardsson
Sebastian
S
Choi
Kweon
K
Kim
Beom Jun
BJ