In order to determine realistic data related to downhill speeds and fuel consumption of diesel-powered vehicles, a series of speed and consumption measurements were executed on selected road sections in Columbia. The sections (lengths varied between 2 and 8 km) were asphalt concrete paved and were of good to fair surface condition. The measurements were made in traffic conditions which almost never caused obstruction and in fairly constant climatological conditions. The results of the study indicate that major explanatory variables for fuel consumption are the gradient and the gross vehicle weight; given a specific gradient, the consumption can be explained by the GVW alone. Consumption on downgrades is mainly governed by driver behavior and the occurrence of incidental, unpredictable distrubances; based upon averages, however, a relationship appears to exist between the GVW and the gradient.

  • Corporate Authors:

    Netherlands Economic Institute

    Burgemeester Oudlaan 80
    Rotterdam-3016,   Netherlands 
  • Authors:
    • Van Harreveld, W
  • Publication Date: 1975-8

Media Info

  • Features: Appendices; Figures; Tables;
  • Pagination: 25 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00126280
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 18 1975 12:00AM