Yearly Archives: 2002

ArcView Network Analyst Tutorial

This tutorial was developed by Jan Husdal at the University of Utah, Salt Lake City, 2000-2002. It shows how to solve 3 categories of network analysis problems; Find Best Route, Find Closest Facility and Find Service Area, and it comes complete with exercise data and solutions.

Posted in THIS and THAT
Tags: , , ,

Pålitelighet og sårbarhet av transportsystemer

Transportsystemer som veg og jernbane danner ryggraden i et moderne samfunn. Påliteligheten og sårbarheten i et transportsystem blir dermed avgjørende faktorer ikke bare i konkurranse- og markedsøyemed, men også i beredskapssammenheng, for å kunne opprettholde normal samfunnsdrift.

Posted in THIS and THAT
Tags: , , , , , ,

The reliability and vulnerability of transportation lifelines

Transportation networks like freeways and interstate highways are the main backbone of modern society. Consequently, the reliability or vulnerability of any transportation network is thus a decisive factor not only in terms of market outreach and competition, but also in terms of continuity, to ensure a 24/7 operation of the community we live in.

Posted in THIS and THAT
Tags: , , , , ,

JavalancheTM – analyzing hazards to roads

Traditionally, in studying the effect of hazards on roads, a hazard map is prepared based on the hazard in question, the contributing factors and then overlaid with a road map. If the road or a buffer around its vicinity intersects hazard areas, these areas constitute a potential threat. In the approach used in this procedure, imagine traveling along the road and looking to either side for hazards.

Posted in THIS and THAT
Tags: , , ,

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
Tags: , , , , , , , ,

A spatial framework for modeling hazards to transportation lifelines

Transportation networks are exposed to a wide range of natural hazards and this study has developed a GIS tool for analyzing these hazards. The primary hazards included in this study are avalanches, landslides, flooding, earthquakes, wildfires, and rockfall. The GIS software used was MFWorks

Posted in my PUBLIC PRESENCE
Tags: , , ,

Book review: Networks and Algorithms

This book tells you the difference between the various types of graphs, trees and networks and shows you step by step calculations on how to solve them by hand (they didn’t have that many computers in 1993).

Posted in BOOKS and BOOK CHAPTERS
Tags: ,

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 [...]
Risks in maritime supply chains
Globalization and international trade is heavily reliant on safe and open waterways. Sea transport c[...]
BOOKS and BOOK CHAPTERS
Book review: Supply Chain Risk Management
Edited by Robert B. Handfield, the book Supply Chain Risk Management: Minimizing Disruptions in Glob[...]
Book Review: Reputation Risk
Reputation. Not only is it practically impossible to measure, its value is also frequently underesti[...]
REPORTS and WHITEPAPERS
Infrastructure - essential for competitiveness?
Regular readers of this blog may have noticed my regular rants about the state of the Norwegian infr[...]
The Benefits of Investing in Supply Chain Security
With the memory of attacks by Somali pirates still fresh in mind, supply chain security has come to [...]
from HERE and THERE
Sparse transportation networks and disruptions
The vulnerability of the transportation network as part of the supply chain is of particular interes[...]
The worst roads in the world's richest country
It is a perpetual topic with the Norwegian public, particularly in election years, like this year: W[...]