Six Kinds of Traffic Flow in Future Cities

This paper presents a traffic flow model which considers self-driving in future cities. The model is based on a stochastic cellular automaton from the viewpoint of traffic resources in fundamental traffic diagrams. We suppose a future traffic system such as the updates of the model can be performed at every cells at the same time, so that every cars can move to forward at least one cell even if all the cells are occupied by cars. We introduce boundary effects and fluctuations as carspecific properties, and define six kinds of car running types based on the properties. Then, we discuss how six-running types are related to a traffic flow with respect to the variances of car speed in fundamental diagrams.