Blog Archives

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.

Posted in THIS and THAT
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Corridor Analysis – A timeline of evolutionary development

corridor-modellingLocating a right-of-way for a linear facility such as a pipeline, a transmission line, a railway or a roadway can be a complex problem. Locating a corridor connecting an origin and a destination on a landscape is analogous to identifying a route that traverses a continuous landscape. Thus, corridor analysis is closely linked to shortest-path finding and network analysis in raster GIS, and has evolved along with it. Corridor analysis is essentially a variant of surface analysis, but can also be viewed as a site selection problem where an optimal contiguous and elongated site is sought.

My PhD?

On a sidenote, I should mention that since this post was first published,

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Posted in ARTICLES and PAPERS
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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.

Posted in my PUBLIC PRESENCE
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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.

Posted in THIS and THAT
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Book Review: This is where raster GIS started…

Tomlin is a must to any academic student of GIS, since much or nearly all work on raster GIS springs off from Tomlin’s work….well not really, but Geographic Information Systems and Cartographic Modeling by Tomlin sparked the scientific interest in it.

Posted in BOOKS and BOOK CHAPTERS
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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.

Posted in THIS and THAT
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ARTICLES and PAPERS
Risk Management: Contingent versus Mitigative
The risk management literature separates between mitigative actions or strategies and contingent act[...]
Are supply and demand elasticity a risk?
Why haven't I seen this paper before? And why is it not cited more often? It should. It is called Th[...]
BOOKS and BOOK CHAPTERS
Book review: The Network Reliability of Transport
I guess you would have to have attended the conference yourself or be a researcher in this very fiel[...]
Book Review: Transportation Network Analysis
Transportation Network Analysis by M. G. H. Bell and Yasunori Iida is a book for the expert rather t[...]
REPORTS and WHITEPAPERS
Analysing road vulnerability in Norway
How does the Norwegian Public Roads Administration NRPA assess the vulnerability of the Norwegian ro[...]
Global Risks 2008 - A prediction come true
In my post on Hyper-optimization and supply chain vulnerability: an invisible global risk? I highlig[...]
from HERE and THERE
Location, location, location
Albeit many supply chains make use of more than one, if not all modes of transport, the vulnerabilit[...]
How the wrong people can ruin a supply chain
People are what makes organizations work, or in some cases, not work. Just as the "ordinary" supply [...]