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Journal Article

Citation

Pardillo Mayora JM, Jurado Piña R. Accid. Anal. Prev. 2009; 41(4): 881-886.

Affiliation

Department of Civil Engineering: Transport, Technical University of Madrid, 28040, Spain. jmpardillo@caminos.upm.es

Copyright

(Copyright © 2009, Elsevier Publishing)

DOI

10.1016/j.aap.2009.05.004

PMID

19540980

Abstract

Pavement-tire friction provides the grip that is required for maintaining vehicle control and for stopping in emergency situations. Statistically significant negative correlations of skid resistance values and wet-pavement accident rates have been found in previous research. Skid resistance measured with SCRIM and crash data from over 1750km of two-lane rural roads in the Spanish National Road System were analyzed to determine the influence of pavement conditions on safety and to assess the effects of improving pavement friction on safety. Both wet- and dry-pavement crash rates presented a decreasing trend as skid resistance values increased. Thresholds in SCRIM coefficient values associated with significant decreases in wet-pavement crash rates were determined. Pavement friction improvement schemes were found to yield significant reductions in wet-pavement crash rates averaging 68%. The results confirm the importance of maintaining adequate levels of pavement friction to safeguard traffic safety as well as the potential of pavement friction improvement schemes to achieve significant crash reductions.


Language: en

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