Please use this identifier to cite or link to this item: https://doi.org/10.3141/2090-05
Title: Measuring network reliability by considering paradoxes: Multiple network demon approach
Authors: Szeto, W.Y. 
O'Brien, L.
O'Mahony, M.
Issue Date: 2009
Source: Szeto, W.Y., O'Brien, L., O'Mahony, M. (2009). Measuring network reliability by considering paradoxes: Multiple network demon approach. Transportation Research Record (2090) : 42-50. ScholarBank@NUS Repository. https://doi.org/10.3141/2090-05
Abstract: Traditionally, game theoretic approaches to measuring transport network reliability have relied on the outcome of a game played between network users seeking to minimize their travel costs and an origin-destination-specific (O-D-specific) demon that seeks the opposite by damaging links in the network. This problem assumes the presence of only one demon in each O-D pair and assumes the capacity reduction to be 50% if the link is selected for damage by one or more O-D-specific demons. The game is typically expressed as a path-based formulation, which is computationally intensive since the formulation requires path enumeration. With relaxation of the assumptions on the O-D-specific nature of the demons and the capacity reduction, a link-based multiple network demon formulation is proposed by the nonlinear complementarity problem approach, in which each demon is free to select any link to damage. Within this framework, the effects of the proposed model on total expected network cost and reliability measures are examined, and specific examples demonstrate the paradoxical phenomenon that if one adds a road to a network, then all travelers may be worse off for total expected network cost or travel time reliability. Overall, the results indicate the importance of assumptions used to total expected network cost and reliability measures and provide some insights into the problem of ignoring these paradoxical phenomena in reliable and robust network design.
Source Title: Transportation Research Record
URI: http://scholarbank.nus.edu.sg/handle/10635/65789
ISSN: 03611981
DOI: 10.3141/2090-05
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

12
checked on Jan 10, 2018

WEB OF SCIENCETM
Citations

12
checked on Jan 10, 2018

Page view(s)

24
checked on Jan 15, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.