{ "id": "cond-mat/9809324", "version": "v2", "published": "1998-09-24T08:29:11.000Z", "updated": "1999-05-27T07:50:11.000Z", "title": "Phase Diagram of Traffic States in the Presence of Inhomogeneities", "authors": [ "Dirk Helbing", "Ansgar Hennecke", "Martin Treiber" ], "comment": "For related work see http://www.theo2.physik.uni-stuttgart.de/helbing.html and http://www.theo2.physik.uni-stuttgart.de/treiber.html", "journal": "Physical Review Letters 82, 4360-4363 (1999)", "doi": "10.1103/PhysRevLett.82.4360", "categories": [ "cond-mat.stat-mech", "nlin.PS", "patt-sol" ], "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.", "revisions": [ { "version": "v2", "updated": "1999-05-27T07:50:11.000Z" } ], "analyses": { "keywords": [ "phase diagram", "traffic states", "congested traffic", "macroscopic traffic models", "spatial inhomogeneities" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }