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All posts tagged
transport network vulnerability

2009/09/21 One comment

Bad locations - bad logistics?

structure-organisation-supply-chainHow are companies located in sparse transport networks affected by supply chain disruptions? This article develops a new framework for the categorization of supply chains, and introduces the notion of the constrained supply chain. Within the constrained supply chain framework, a company can address its locational disadvantage by either redesigning the supply chain towards a better structure, in order to gain better location, or by redesigning the supply chain towards a better organization, in order to gain better preparedness.

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2008/11/14 Leave a comment

TRB 2009 - are you going there, too?

Are you presenting at the TRB 2009, the Transportation Research Board Annual Meeting? Personally I consider presenting an article at TRB as only inches away from having an article published in an academic journal. The reason is that you have to submit a full paper, not just an abstract, which is then fully peer reviewed by at least three referees, thus ensuring the quality of the paper. Below is the abstract of a paper I will present at TRB2009, the Transportation Research Board 88th Annual Meeting, in Washington, DC, 11-15 January 2009.

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2008/08/03 2 comments

Accessibility Index - a measure of Transport Network Vulnerability?

ResearchBlogging.orgI had the pleasure of meeting M.A.P. Taylor at the 3rd International Symposium on Transport Network Vulnerability (INSTR 2007). His research has many bearings towards my own research in that it is concerned with transport network vulnerability in sparse rural and remote networks. In his 2006 paper, Application of Accessibility Based Methods for Vulnerability Analysis of Strategic Road Networks, Taylor and his fellow contributors develop a methodology for assessing the socio-economic impacts of transport network degradation by using the change in accessibility prior to and after degradation of the road network as a measure for the importance or criticality of the road link.

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2005/01/13 Leave a comment

The vulnerability of road networks in a cost-benefit perspective

A reliable transportation network represents a net benefit to society, and conversely, a vulnerable network represents a net cost to society. Hence, vulnerability ought to be an important parameter for decision-support in cost-benefit analyses, in order to establish a link between the terms reliability and vulnerability vis-à-vis costs and benefits. A multi-criteria analysis approach is suggested as an appropriate methodology for analyzing the monetary and non-monetary effects of vulnerability. Looking beyond the science of vulnerability assessments, this paper discusses some of the network attributes that influence the vulnerability of transportation networks, influences that can be described as structure-related, nature-related or traffic-related attributes. The influences of the individual attributes are then examined as possible candidates for measuring of the vulnerability of the transportation network.

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