The impact of road geometry and surface roughness on driving speed for Swedish logging trucks

Transport accounts for more than 25% of the Swedish forest industries’ roundwood procurement cost at mill gate (exclusive stumpage). Wages accounted for 34.2 % of truck transport costs, so in order to further reduce transport costs and increase productivity it is important to better understand the impact of the transport environment on truck speed. This study quantified the impact of curvature, road surface roughness, gradient, integrated gradient and truck weight on driving speed. The study was done with a conventional 60 ton logging truck in an area which captured high variation in the studied variables. The results quantified the correlation between driving speed and the independent variables curvature, road surface roughness and functional road class. Functional road class was also found to partially capture variation in curvature, integrated gradient and road surface roughness. Further analysis of the data will focus on developing a complete empirical model for improving forestry transport planning and costing of logging truck transport as well as the further refinement of the route selection system Calibrated Route Finder.

Language

  • English

Media Info

  • Pagination: 8p
  • Monograph Title: Future pathways: International Symposium on Heavy Vehicle Transport Technology (HVTT14), 15-18 November 2016, Rotorua

Subject/Index Terms

Filing Info

  • Accession Number: 01641767
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ITRD, ATRI
  • Created Date: Jul 25 2017 9:57AM