A stochastic cellular automaton model for traffic flow with multiple metastable states

Abstract

A new stochastic cellular automaton (CA) model of traffic flow, which\nincludes slow-to-start effects and a driver's perspective, is proposed by\nextending the Burgers CA and the Nagel-Schreckenberg CA model. The flow-density\nrelation of this model shows multiple metastable branches near the transition\ndensity from free to congested traffic, which form a wide scattering area in\nthe fundamental diagram. The stability of these branches and their velocity\ndistributions are explicitly studied by numerical simulations.\n