Skid resistance: effects of weather and of correction factors

This paper develops the work presented at last years conference when the sensitivity of skid resistance to antecedent rainfall and the repeatability of measurement was discussed. The study was confined to the Northland PSMC network. In this paper, the earlier work is further developed, using the SCRIM survey carried out one year later. As before, two sets of runs were compared, one done for by Transit New Zealand in December 2002, and an identical survey carried out using the same equipment for Works in April 2003. Comparison of the pair of surveys was done in several ways and is presented here as frequency distributions of difference. Individual wheelpath measures and lane averages are compared when expressed in turn as raw data, Mean Summer SCRIM Coefficient (MSSC) and Equilibrium SCRIM Coefficient (ESC). In addition, where no resealing of the surface has taken place, comparison is made between the previous annual survey pair (Dec 2001 and April 2002). The results give a robust indication of the degree to which stability is obtained at present. Finally, in the light of these results, suggestions are made for the assessment of compliance with SCRIM requirements.(a) For the covering entry of this conference, please see ITRD abstract no. E214156.

  • Authors:
    • KIRK, G
    • HAYDON, M
  • Publication Date: 2003


  • English

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  • Accession Number: 01043133
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ITRD, ATRI
  • Created Date: Mar 6 2007 8:20AM