Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help
 

Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (1.76 MB bytes)

Title: A transportation-scheduling system for managing silvicultural projects

Author: Valenzuela, Jorge F.; Balci, H. Hakan; McDonald, Timothy;

Date: 2005

Source: International Journal of Forest Engineering, Vol. 16 No. 1: 65-75

Publication Series: Miscellaneous Publication

Description: A silvicultural project encompasses tasks such as sitelevel planning, regeneration, harvestin, and stand-tending treatments. an essential problem in managing silvicultural projects is to efficiently schedule the operations while considering project task due dates and costs of moving scarce resources to specific job locations. Transportation costs represent a significant portion of the total operating costs. The main difficulty in developing suh a management system is finding an optimal transport schedule while handeling complicated constraints, such as precedence and temporal relations among project tasks, project due dates, truck routing, weather, and other operational conditions. It is well known that finding an optimal solution to these types of problems invloved high computational complexity. They are usually NP-hard. For the reason, we propse to use simulated annealing - a meta-heuristic optimization method- that interacts with the precedence and temporal relations among project tasks and logistics are explicitly accounted for. The approach has been tested using data provided by a silvicultural contractor located in Alabama. the results obtained solving one instance of a small size problem with five worksites showed that the best solution could be found in less than four minutes using a personal computer with a processor Pentium III (1 GHz). A good solution for a larger problem with twenty worksites was found in thirty minutes. Also a resource analysis is performend to evaluate the impact of each resource on the best solution.

Keywords: Project management, silvicultural systems, forest operations, meta-heuristic, optimization, simulation

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
  • You may send email to pubrequest@fs.fed.us to request a hard copy of this publication. (Please specify exactly which publication you are requesting and your mailing address.)

XML: View XML

Citation:


Valenzuela, Jorge F.; Balci, H. Hakan; McDonald, Timothy 2005. A transportation-scheduling system for managing silvicultural projects. International Journal of Forest Engineering, Vol. 16 No. 1: 65-75

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.