This paper was presented at Session 37 - Freight. Most of the mass and dimension limits for commercial vehicles recommended by the NAASRA Economics of Road Vehicle Limits (ERVL) study were put into operation in Victoria in November 1976 under an extension of the permit system. The Country Roads Board conducted a limited survey on the Hume and Western highways in 1977-78 to monitor the effects of the new limits. This paper describes the organisation of the 1977-78 survey and compares the data obtained with those from earlier surveys, particularly those carried out in 1974-75 as part of the ERVL study. The latest survey indicates that there have been significant changes in the makeup of the commercial vehicle fleet over the past three years, with the proportion of large vehicles increasing dramatically. There has been a strong trend for triaxles to replace widespread tandems on the heavier articulated vehicles. Even though operators have taken advantage of the increased limits allowed by the permit system, axle loadings have not increased to the extent that significant increases in pavement damage can be attributed to the introduction of the permit loadings (a). (TRRL)

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 312-319
  • Serial:
    • Volume: 9
    • Issue Number: 6

Subject/Index Terms

Filing Info

  • Accession Number: 00310252
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ITRD, TRIS, ATRI
  • Created Date: Jul 22 1980 12:00AM