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
Tags: , , , , , ,

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,

Read more

Posted in ARTICLES and PAPERS
Tags: , , , , , ,

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
Tags: , , , , , , ,

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
Tags: , , , , , , , ,

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
Tags: , , , ,

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
Tags: , , , , , , , ,

ARTICLES and PAPERS
Strategic Alliances: Trust Control Risk
Can strategic alliances really work?  In Trust, Control and Risk in Strategic Alliances, Das & T[...]
Risk Management: Contingent versus Mitigative
The risk management literature separates between mitigative actions or strategies and contingent act[...]
BOOKS and BOOK CHAPTERS
Book Review: Transportation GIS
This book showcases many examples of how GIS can be applied in the field of transportation using Arc[...]
Risk Management Simplified
Risk management. Why make it difficult when you can make it easy? That is perhaps what Andy Osborne [...]
REPORTS and WHITEPAPERS
London Olympics and Business Continuity
Are UK businesses, and in particular London businesses, unprepared for the London Olympics in 2012? [...]
Saving Norway's crumbling infrastructure
NTP 2010-2019
Following up my post this morning called "D-Day for Norway's Transport Infrastructure", the numbers [...]
from HERE and THERE
The use of air photos in emergency management
There are a surprisingly large number of applications of air photos in emergency management. These r[...]
Economies of scale
In an article in the Norwegian newspaper Dagbladet today, some of Norways's major construction busin[...]