Integrated vehicle-based safety systems field operational test final program report.

PDFTech ReportDOT HS 811 482UMTRI-2010-36Collision avoidance systemsIntelligent vehiclesIntelligent transportation systemsIntegrated systemsTraffic safetyUnited StatesUnited States. Dept. of Transportation. ITS Joint Program OfficeSayer, James R.LeBlanc, David J.Bogard, Scott E.Funkhouser, Dillon S.Bao, ShanBuonarosa, Mary LynnBlankespoor, Adam D.University of Michigan. Transportation Research InstituteUnited States. Dept. of Transportation. ITS Joint Program OfficeUS Transportation Collection"This document presents results from the light-vehicle and heavy-truck field operational tests performed as part of the Integrated Vehicle-Based Safety Systems (IVBSS) program. The findings are the result of analyses performed by the University of Michigan Transportation Research Institute to examine the effect of a prototype integrated crash warning system on driver behavior and driver acceptance. Both platforms included three integrated crash-warning subsystems: forward crash; lateral drift; and lane-change/merge crash warnings. The light-vehicle platform also included curve-speed warning. The integrated systems were introduced into two vehicle fleets: 16 light vehicles and 10 Class 8 tractors. The light vehicles were operated by 108 volunteer drivers for 6 weeks, and the heavy trucks were driven by 18 commercial-truck drivers for a 10-month period. Each vehicle was instrumented to capture detailed data on the driving environment, driver behavior, warning system activity, and vehicle kinematics. Data on driver acceptance was collected through post-drive surveys and debriefings. Key findings indicate that use of the integrated crash warning system resulted in improvements in lane-keeping, fewer lane departures, and increased turn-signal use. Both the passenger car and commercial drivers accepted the integrated crash warning system and benefited from improved awareness of vehicles around them. No negative behavioral-adaptation effects of using the integrated system were observed in either driver group.