Issue
EPL
Volume 80, Number 6, December 2007
Article Number 68001
Number of page(s) 6
Section Interdisciplinary Physics and Related Areas of Science and Technology
DOI http://dx.doi.org/10.1209/0295-5075/80/68001
Published online 13 November 2007
EPL, 80 (2007) 68001
DOI: 10.1209/0295-5075/80/68001

Robustness of transportation networks subject to degradable links

A. Nagurney and Q. Qiang

University of Massachusetts - Amherst, MA 01003, USA


received 27 September 2007; accepted in final form 17 October 2007; published December 2007
published online 13 November 2007

Abstract
In this paper, we demonstrate how to capture the robustness of a transportation network in the case of degradable links represented by decreasing capacities. The analysis is conducted by utilizing Bureau of Public Road link travel cost functions and a recently proposed network efficiency measure for congested networks. For specific networks we are able to derive lower bounds for the robustness when percentage reductions in the link capacities take place.

PACS
87.23.Ge - Dynamics of social systems.
89.40.-a - Transportation.
89.90.+n - Other topics in areas of applied and interdisciplinary physics.

© EPLA 2007