S-WoPEc
 
Scandinavian Working Papers in Economics
HomeAboutSeriesSubject/JEL codesAdvanced Search
Department of Business and Management Science, Norwegian School of Economics (NHH) Discussion Papers, Department of Business and Management Science, Norwegian School of Economics (NHH)

No 2006/5:
Backhauling in forest transportation - models, methods and practical usage

Dick Carlsson and Mikael Rönnqvist ()

Abstract: Transportation planning in forestry is divided into strategic, tactical and operational depending on the length of the planning horizon. We consider a tactical problem of finding efficient backhauling routes. Given a set of supply and demand points the backhauling problem is to identify a set of efficient routes which is a combination of direct tours between supply and demand points such that the unloaded distance is minimized. Given these routes we formulate a linear programming problem where the solution is the actual flows in the routes. The problem normally has a time horizon ranging from one to five weeks. However, in some cases it can be included in strategic planning for more than one year and as a basis for daily operative route planning. The size of the problem increases rapidly with the number of supplies and demands and we describe a column generation approach for its solution. Models and methods have been used with success in a number of case studies and in decision support systems. We describe the model and solution method and report on case studies and systems where the approach has been used.

Keywords: Transportation; Modelling; Decision Support System; Linear programming; Optimization; Forestry; (follow links to similar papers)

JEL-Codes: C52; C61; Q23; R40; (follow links to similar papers)

24 pages, April 27, 2006

Before downloading any of the electronic versions below you should read our statement on copyright.
Download GhostScript for viewing Postscript files and the Acrobat Reader for viewing and printing pdf files.

Full text versions of the paper:

163608    PDF-file
Download Statistics
This paper is published as:
Carlsson, Dick and Mikael Rönnqvist, (2007), 'Backhauling in forest transportation - models, methods and practical usage', Canadian Journal of Forest Research, Vol. 37, pages 2612-2623



Questions (including download problems) about the papers in this series should be directed to Stein Fossen ()
Report other problems with accessing this service to Sune Karlsson () or Helena Lundin ().

Programing by
Design by Joachim Ekebom

Handle: RePEc:hhs:nhhfms:2006_005 This page was generated on 2014-12-14 19:25:11