Blog Archives

Shortest Path Computation: A Comparative Analysis

Current research work into establishing a performance efficiency hierarchy between Java, C++ and ArcView is described and experimentation is performed in order to statistically compare shortest path query execution time, response time and implementation issues.

Posted in my PUBLIC PRESENCE
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MFworks Tutorial

This tutorial, developed in 2002, is a showcase on network analysis in MFworks, with step by step instructions and a summary of the theory behind it.

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How to make a straight line square

Traditionally, network analysis, path finding and route planning have been the domain of graph theory and vector GIS, which is where most algorithms find their application. Contrary to such common wisdom, the research of this thesis for the Msc in GIS explores the topic of network analysis in raster GIS, using MFworks as example software.

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Fastest path problems in dynamic transportation networks

This research essay and literature review investigates some of the gateways to path finding in static and dynamic networks that are listed in present research literature. A selected set of different approaches are highlighted and set in a broader context, illustrating the various aspects of path finding in static and dynamic networks.

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Network analysis – raster versus vector – A comparison

The key to producing successful network models is in understanding the relationship between the characteristics of physical network systems and the representation of those characteristics by the elements of the network model.

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ARTICLES and PAPERS
Accessibility Index - Transport Network Vulnerability
Taylor, M., Sekhar, S., & D'Este, G. (2006). Application of Accessibility Based Methods for Vulnerability Analysis of Strategic Road Networks Networks and Spatial Economics, 6 (3-4), 267-291
I had the pleasure of meeting M.A.P. Taylor at the 3rd International Symposium on Transport Network [...]
A conceptual framework for supply chain vulnerability
Today's article is one of the earlier works on supply chain vulnerability, published in 2000. A conc[...]
BOOKS and BOOK CHAPTERS
What are Logistics Clusters?
This is a guest post by Professor Yossi Sheffi, Director, MIT Center for Transportation & Logist[...]
Book Review: Logistics and Supply Chain Management
This book by Martin Christopher, Logistics & Supply Chain Management, is one of the better if [...]
REPORTS and WHITEPAPERS
Assess the vulnerability of your production system
So far I have reviewed "international" literature and web sites, and it is only fitting that now it [...]
Critical Infrastructure and Resilience
What happens when a business is disabled for a length of time? What are the impacts on its profitabi[...]
from HERE and THERE
Flexibility and robustness as options to reduce risk and uncertainty
Any company operating in international markets will face a multitude of risks. Acknowledging these r[...]
Sustainability means less vulnerability?
Does sustainability improve a a company’s resilience towards supply chain vulnerabilities? Recently,[...]