Verification and development of the bases for the assessment for skid resistance (VSS2005/702)
Overview
Objectives:
The objective of this research is to review and to provide a draft of the bases for assessing the road grip.
For the measuring systems skiddometer / SRM is to clarify whether a new evaluation framework is necessary and if a breakdown by different road types is appropriate. In addition, to examine the scope of this research whether possibly the currently valid guideline for assessing the grip should be adapted or whether different benchmarks would appear for different road types, depending on the measurement speed.
For the measuring system SCRIM a new evaluation background for the national roads is to create and for measuring speeds 60 km / h and 80km / h are to develop appropriate benchmarks.
Methodology:
For this research the following procedure is provided:
- Critical review of existing data bases
- If necessary, carry out additional measurements
- Creating frequency distributions for the measuring systems skiddometer / SRM and SCRIM entirety and depending on the road type (motorways, main roads in urban areas or long distance) and the measured speed
- Review of the former evaluation background based on the quantile
- Investigation of a possible link between the grip values and the linings for highways on the one hand and for main roads on the other hand
- Assessment of the frequency distributions and create a recommendation for the evaluation of road grip.
- Recommendations for adapting and supplementing standard SN 640 511b
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