Effect of road roughness on fuel consumption

There is considerable controversy over the effect which pavement conditions (surface roughness in particular) have on vehicle operating costs, and fuel consumption. Numerous research efforts in recent years have been devoted towards this issue. This study reviews the related research and compares the findings from various studies. In particular, the study evaluates and compares several fuel consumption models for paved roads from the World Bank's Highway Design and Maintenance Standards Model (HDM-III). A sensitivity analysis is carried out on these models to test the effect of roughness, cracking, potholing, rut depth on fuel use. The analysis has two approaches: one for varying speeds induced from speed prediction models (directly from HDM-III runs); another for constant speed test. A field fuel consumption experiment is conducted, and comparisons between experiment results and estimates from the models in HDM-III are presented. Comments on fuel consumption models in HDM-III and recommendations on further research and conclusions are made.

  • Supplemental Notes:
    • The Working Paper is based on the author's M.Eng.Sci. thesis.
  • Authors:
    • Gu, G
  • Publication Date: 1990-12


  • English

Media Info

  • Pagination: 106p
  • Serial:
    • Issue Number: 91/T4

Subject/Index Terms

Filing Info

  • Accession Number: 01432747
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Aug 24 2012 5:11PM