Integrated vehicle-based safety systems : heavy-truck field operational test key findings report.

682190026PDFTech ReportDOT HS 811 362Heavy duty trucksCollision avoidance systemsDriver support systemsMichiganUnited States. National Highway Traffic Safety AdministrationSayer, James R.Bogard, Scott E.Funkhouser, DillonLeBlanc, David J.Bao, ShanBlankespoor, Adam D.Mary Lynn, BuonarosaWinkler, Christopher B.University of Michigan. Transportation Research InstituteUnited States. Dept. of Transportation. Research and Innovative Technology AdministrationNTL-FREIGHT-Trucking IndustryNTL-SAFETY AND SECURITY-AccidentsNTL-SAFETY AND SECURITY-Vehicle DesignNTL-SAFETY AND SECURITY-SAFETY AND SECURITYUS Transportation CollectionThis document presents key findings from the heavy-truck field operational test conducted aspart of the Integrated Vehicle-Based Safety Systems program. These findings are the result ofanalyses performed by the University of Michigan Transportation Research Institute to examinethe effect of a prototype integrated crash warning system on driving behavior and driveracceptance. The heavy-truck platform included three integrated crash-warning subsystems(forward crash, lateral drift, and lane-change/merge crash warnings) installed on a fleet of 10Class 8 tractors and operated by18 commercial drivers for 10 months. Each truck wasinstrumented to capture detailed data on the driving environment, driver behavior, warningsystem activity, and vehicle kinematics. Data on driver acceptance was collected through a postdrivesurvey and debriefings.The key findings indicate that integrated crash warning systems not only offer benefits relative toimproved driver performance (e.g., improved headway keeping), but that the majority ofcommercial drivers accepted the system and reported subjective benefits from the integratedsystem they used. Of the drivers who participated, 15 out of 18 stated that they preferred a truckwith the integrated system, stating that they would also recommend that their company considerthe purchase of vehicles with integrated safety systems installed. No negative behavioraladaptation effects from the drivers\ue2\u20ac\u2122 10-month use of the integrated system were observed