Chaotic Traffic Flows on Two Crossroads Caused by Real-Time Traffic Information.

A cellular automaton traffic model of cars on two single-lane roads crossing at one point is studied. At the crossing real-time traffic information is displayed and drivers determine the driving direction based on the information about the trip-time. The traffic flow and density of the cars on the roads oscillate between free flow and jam states, and their time-behavior is chaotic. The real-time traffic information lures the driver to a road with shorter trip-time and causes too much concentration of the traffic by the nonlinearity of the velocity-density relation. [ABSTRACT FROM AUTHOR]