摘要: |
The Highways Agency (HA) manages the levels of skid resistance on its network by carrying out single annual skid resistance surveys (SASS). These surveys are conducted using sideway-force skid resistance survey devices manufactured in the UK known as SCRIM. A similar device known as SKM is manufactured in Germany which uses a similar tyre manufactured using different materials, to a slightly different specification. This study was undertaken to firstly compare the results produced by the two tyre types to provide an initial assessment of the effect of the differences in specification; and secondly to compare the two machine types to determine if a SKM type device could potentially achieve accreditation at the HA accreditation trial and be approved for use on the HA network. |