Dynamics of Two Equivalent Lanes Traffic Flow Model: Self-Organization of the Slow Lane and Fast Lane

Abstract

A simple two-lanes traffic flow model using cellular automaton is investigated. In this model, if the car density is set within a certain range, the following characteristic behavior of traffic flow is observed. i) The self-organization of the slow and fast lanes in spite of the symmetry between these two lanes. ii) The appearance of several branches and hysteresis in the relation between traffic flow and car density.