On the reproducibility of spatiotemporal traffic dynamics with microscopic traffic models release_7dz2yl54lvftjnhjmeuj7rlbhi

by Florian Knorr, Michael Schreckenberg

Released as a article .

2012  

Abstract

Traffic flow is a very prominent example of a driven non-equilibrium system. A characteristic phenomenon of traffic dynamics is the spontaneous and abrupt drop of the average velocity on a stretch of road leading to congestion. Such a traffic breakdown corresponds to a boundary-induced phase transition from free flow to congested traffic. In this paper, we study the ability of selected microscopic traffic models to reproduce a traffic breakdown, and we investigate its spatiotemporal dynamics. For our analysis, we use empirical traffic data from stationary loop detectors on a German Autobahn showing a spontaneous breakdown. We then present several methods to assess the results and compare the models with each other. In addition, we will also discuss some important modeling aspects and their impact on the resulting spatiotemporal pattern. The investigation of different downstream boundary conditions, for example, shows that the physical origin of the traffic breakdown may be artificially induced by the setup of the boundaries.
In text/plain format

Archived Files and Locations

application/pdf  562.6 kB
file_g5g7fbhpwvdytnzuwtzxiqdjhy
arxiv.org (repository)
web.archive.org (webarchive)
Read Archived PDF
Preserved and Accessible
Type  article
Stage   submitted
Date   2012-09-24
Version   v1
Language   en ?
arXiv  1209.5189v1
Work Entity
access all versions, variants, and formats of this works (eg, pre-prints)
Catalog Record
Revision: fce901a2-7ff7-40a1-b674-b5b6d2ccfd4e
API URL: JSON