The authors would like to thank Dwayne Harris for his support and expert guidance during the field work required for this study as well as his constructive review of the study findings. In addition, the authors appreciated the counsel provided by the Study Advisory Committee members throughout this effort. JOINT TRANSPORTATION RESEARCH PROGRAM The Joint Transportation Research Program serves as a vehicle for INDOT collaboration with higher education institutions and industry in Indiana to facilitate innovation that results in continuous improvement in the planning, design, construction, operation, management and economic efficiency of the Indiana transportation infrastructure.