The wet weather (total) accident rate was nearly double the rate for all weather conditions for the five months studied with the pavement being wet 6.7% of the time period. In certain areas the wet weather accident rate for all accidents could vary as much as six times the average wet weather rate for the ten county area. Even though other tire factors are important, the lack of tread depth on the rear tires was of major importance in the accidents studied and particularly for the skidding accidents. Differences were found between the wet pavement skid resistance of the accident sites and the average values within a range of one-half mile from the corresponding sites; however, the differences were small and believed to have little effect on wet weather accidents. A difference was also found between a sample average (39) of the state-wide wet pavement skid resistance and the average (35) of the values at the accident site. (Author)
Relationship of the Tire-Pavement Interface to Traffic Accidents Occurring under Wet Conditions
1969
140 pages
Report
No indication
English
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