Effects of back step and update rule on congestion of mobile objects

S. Maniccam

Physica A: Statistical Mechanics and its Applications, 2005, vol. 346, issue 3, 631-650

Abstract: This paper studies the effects of back step movement and update rule on the traffic congestion properties of mobile objects, using computer simulation. The mobile objects are modeled as four-way-biased random walkers in two-dimensional square lattice. It is found that there is always a phase transition from free flow to jammed state at some critical density with and without back step under sequential and parallel update for large systems. Back step does not reduce congestion as one might expect. In fact, back step makes congestion worse in terms of critical density. The critical density with back step is smaller than the critical density without back step under sequential and parallel update for large systems. Back step under parallel update leads to completely jammed state, whereas back step under sequential update leads to partially jammed state. The critical density under parallel update is smaller than the critical density under sequential update with and without back step. Variable drift has no significant effects on the congestion properties.

Keywords: Traffic congestion; Back step; Update rule; Phase transition; Traffic models (search for similar items in EconPapers)
Date: 2005
References: View complete reference list from CitEc
Citations: View citations in EconPapers (6)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0378437104010787
Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:346:y:2005:i:3:p:631-650

DOI: 10.1016/j.physa.2004.08.011

Access Statistics for this article

Physica A: Statistical Mechanics and its Applications is currently edited by K. A. Dawson, J. O. Indekeu, H.E. Stanley and C. Tsallis

More articles in Physica A: Statistical Mechanics and its Applications from Elsevier
Bibliographic data for series maintained by Catherine Liu ().