Phase Diagram of Traffic States in the Presence of Inhomogeneities

Preprint

27 May 1999

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9809324

Abstract

We present a phase diagram of the different kinds of congested traffic that are triggered by disturbances when passing ramps or other spatial inhomogeneities of a freeway. The simulation results obtained by the nonlocal, gas-kinetic-based traffic model are in good agreement with empirical findigs. They allow to understand the observed trasitions between free and various kinds of congested traffic, among them localized clusters, stop-and-go waves, and different types of ``synchronized'' traffic. The proposed conditions for the existence of these states suggest that the phase diagram is universal for a class of different microscopic and macroscopic traffic models.

Keywords

All Related Versions

Version 1, 1998-09-24, ArXiv
Version 2, 1999-05-27, ArXiv
Published version: Physical Review Letters, 82 (21), 4360.

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