Regensburg 2004 – wissenschaftliches Programm

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AKSOE: Physik sozio-ökonomischer Systeme

AKSOE 2: Urbane Systeme und Verkehrsdynamik

AKSOE 2.2: Vortrag

Montag, 8. März 2004, 14:30–15:00, H8

Phase diagram of a traffic flow model with a non-unique flow-density relation with open boundaries — •Michael Spahn and Peter Wagner — Institute of Transport Research, German Aerospace Center (DLR) in the Helmholtz Association, Rutherfordstrasse 2, 12489 Berlin, Germany

The phase diagram of a traffic flow model with a non-unique flow-density relation [1] in the case of open boundaries is presented. It exhibits the typical phases corresponding to free flow and jams. Additionally there is a region in the flow-density plane with a plateau in the mean velocity. This corresponds to a model rule introducing synchronized flow.

Furthermore results will be presented concerning the applicability of a general principle [2] connecting the phase diagram of a model in the case of open boundaries with the fundamental diagram in the case of periodic boundary conditions.
B.S. Kerner et. al., Cellular automata approach to three-phase traffic theory, J. Phys. A: Math. Gen. 35 (2002)
V. Popkov and G.M. Schütz, Europhys. Lett. 48, 257 (1999)