Abstract
Under uncertainty, people do not necessarily behave stochastically, but behave based on rules and regulations which they form through their experiences. We formulated the route choice based on such inductive reasoning, and constructed the model of road transportation system. The aim of this study is to examine the behavior of road transportation system and route choice through simulation analysis. The results of the simulation, agents form “delusion” which means an extremely biased perception of the travel time, and habit which allow their behavior to be frozen. If the agents deliberate, the system nearly converges to user equilibrium; otherwise the system does not necessarily converge to it.