Carlsson, Dick (Södra Cell International AB) Rönnqvist, Mikael () (Dept. of Finance and Management Science, Norwegian School of Economics and Business Administration)
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.
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Publisher Info
Paper provided by Department of Finance and Management Science, Norwegian School of Economics and Business Administration in its series Discussion Papers with number
2006/5.
Length: 24 pages Date of creation: 27 Apr 2006 Date of revision: Publication status: Published in Canadian Journal of Forest Research, 2007, pages 2612-2623. Handle: RePEc:hhs:nhhfms:2006_005
Contact details of provider: Postal: NHH, Department of Finance and Management Science, Helleveien 30, N-5045 Bergen, Norway Phone: +47 55 95 92 93 Fax: +47 55 95 96 50 Email: Web page: http://www.nhh.no/for/ More information through EDIRC
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References listed on IDEAS Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
M.P. de Brito & S.D.P. Flapper & R. Dekker, 2002.
"Reverse logistics,"
Econometric Institute Report
272, Erasmus University Rotterdam, Econometric Institute.
[Downloadable!]
Other versions:
Brito, M.P. de & Flapper, S.D.P. & Dekker, R., 2002.
"Reverse logistics,"
Econometric Institute Report
EI 2002-21 Revision_Date:, Erasmus University Rotterdam, Econometric Institute.
[Downloadable!]