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Can Travel Time Information Influence Network Flow?

Drawing from the literature on the minority game, this study proposes that predictive travel time information provided to drivers to assist with their route choices may not influence network flow; under the condition that route choices are made repeatedly by the same group of drivers, the drivers self-organize to reach the same network equilibrium regardless of the contents of the predictive travel time information given. A numerical example supports this conjecture by showing that improvements in network flow are negligibly small even when precise information on travel time is provided. If no predictive information is present, the results of agent-based route choice simulation studies indicate that higher levels of the cognitive capabilities of drivers tend to produce more self-organization and stable network flows and that information on those routes a driver did not take is important for this self-organization.