{ "id": "cond-mat/0001196", "version": "v1", "published": "2000-01-13T18:40:43.000Z", "updated": "2000-01-13T18:40:43.000Z", "title": "Effect of on- and off-ramps in cellular automata models for traffic flow", "authors": [ "G. Diedrich", "L. Santen", "A. Schadschneider", "J. Zittartz" ], "comment": "11 pages, 9 figures, accepted for publication in Int. J. Mod. Phys. C", "doi": "10.1142/S0129183100000316", "categories": [ "cond-mat.stat-mech" ], "abstract": "We present results on the modeling of on- and off-ramps in cellular automata for traffic flow, especially the Nagel-Schreckenberg model. We study two different types of on-ramps that cause qualitatively the same effects. In a certain density regime one observes plateau formation in the fundamental diagram. The plateau value depends on the input-rate of cars at the on-ramp. The on-ramp acts as a local perturbation that separates the system into two regimes: A regime of free flow and another one where only jammed states exist. This phase separation is the reason for the plateau formation and implies a behaviour analogous to that of stationary defects. This analogy allows to perform very fast simulations of complex traffic networks with a large number of on- and off-ramps because one can parametrise on-ramps in an exceedingly easy way.", "revisions": [ { "version": "v1", "updated": "2000-01-13T18:40:43.000Z" } ], "analyses": { "keywords": [ "cellular automata models", "traffic flow", "plateau formation", "plateau value depends", "complex traffic networks" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 11, "language": "en", "license": "arXiv", "status": "editable" } } }