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
Road Vulnerability
Today we are going back in time, to one of the seminal articles in road vulnerability. Katja Berdica[...]
How to secure your supply chain - 7/7
This is the final part of my translation of the  Swedish book “Säkra företagets flöden”, published[...]
BOOKS and BOOK CHAPTERS
Resilience times four
Resilience. It is not so much about reducing the number of things that go wrong, but it is about imp[...]
Security and continuity of supply
Aah...the intricacies of the English language. Not supply (chain) security, but the security of supp[...]
REPORTS and WHITEPAPERS
Saving Norway's crumbling infrastructure
NTP 2010-2019
Following up my post this morning called "D-Day for Norway's Transport Infrastructure", the numbers [...]
Zycus and the Supply Risk Explosion
"Ten or fifteen years ago, you could not convince most procurement and supply-chain professionals to[...]
from HERE and THERE
Somali pirates forcing ships to make detour
In an earlier article today I quoted several sources saying that shipping companies are now seriousl[...]
Economists versus Technocrats - who wins?
In the current financial downturn, much pressure has been on the government (here in Norway, and I b[...]