Potential Safety Cost-Effectiveness of Treating Rutted Pavements

摘要: Pavement rutting is a problem that has unknown consequences from safety-based point of view. It assumed the wheelpath fills with water in wet-weather situations, thus increasing potential for vehicle to hydroplane. A study was conducted quantify how pavement affects accident rates and evaluate possible guidelines treatment rutting. Rut depth, traffic volumes, databases maintained by Wisconsin Department Transportation undivided rural highways were then analyzed identify statistical trends relationships. Accidents categorized as rut-related if prevailing conditions could be potentially associated occurrence hydroplaning. depth measurements average values both directions 1.8-km (1.1-mi) segments represent elevation difference between tire paths high them. The results analyses indicated defined rate begins increase at significantly greater rut depths exceed 7.6 mm (0.3 in.). cost-effectiveness reductions relative amount rutted also evaluated.