Dresden 2006 – scientific programme

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AKSOE: Physik sozio-ökonomischer Systeme

AKSOE 10: Poster Session (posters are expected to be displayed the full day 8:30-18:00)

AKSOE 10.42: Poster

Wednesday, March 29, 2006, 16:00–18:00, P2

Traffic Flow by Cellular Automata: Effect of Maximal Car Velocity — •Danuta Makowiec and Wieslaw Miklaszewski — Institute of Theoretical Physics and Astrophysics, Gdansk University, 80-952 Gdansk, ul.Wita Stwosza 57, Poland

The effect of maximal car velocity on the fundamental diagram in the Nagel-Schreckenberg model of traffic is studied. The car density giving the maximal flow and so-called jamming transition parameters are investigated by computer simulations. The basic model is modified by the assumption that for each car an individual velocity limit is assigned. One can give many reasons supporting this assumption: high diversity of vehicles, namely, from sport-cars to scrap-cars, and rather common driver’s habit of breaking the speed limit. However, if each driver is assigned his/her own maximal driving speed at random, then the stationary state is determined by the slowest vehicles. Therefore, following hints from Polish roads, the slowest driver is forced to change his/her behavior. In simulation, the self-organization of the traffic is observed when the maximal velocity of the slowest moving vehicle is changed in diferent ways.