Integrated vehicle-based safety systems heavy-truck on-road test report

690036400September 2007 \uc2\ubf March 2008PDFTech ReportDOT HS 811 021PPA# HS-22Lane changingCollision avoidance systemsWarning systemsHeavy duty trucksRoad testsUnited States. National Highway Traffic Safety AdministrationHarrington, RyanLam, AndyNodine EmilyFerence, John J.Najm, Wassim GJohn A. Volpe National Transportation Systems Center (U.S.)United States. National Highway Traffic Safety AdministrationNTL-INTELLIGENT TRANSPORTATION SYSTEMS-INTELLIGENT TRANSPORTATION SYSTEMSNTL-INTELLIGENT TRANSPORTATION SYSTEMS-Commercial Vehicle OperationsNTL-SAFETY AND SECURITY-Highway SafetyNTL-SAFETY AND SECURITY-Vehicle DesignNTL-INTELLIGENT TRANSPORTATION SYSTEMS-Collision Avoidance Systems (Vehicles)Volpe National Transportation Systems Center, Technical Reference CenterThis report presents results from a series of on-road verification tests performed to determine the readiness of a prototypeintegrated warning system to advance to field testing, as well as to identify areas of system performance that should be improvedprior to the start of the field test planned for 2009. Data was collected from tests conducted on public roads using an International8600 heavy truck equipped with the prototype safety system. The prototype system provides forward crash warning (FCW), lanechange merge (LCM), and lane departure warning (LDW) functions managed by an arbitration function to address multiple crashthreats. The objectives of the on-road tests were to operate the heavy truck in an uncontrolled driving environment to measure thesystem\ue2\u20ac\u2122s susceptibility to nuisance alerts, assess alerts in perceived crash situations, and evaluate the system availability. Testresults revealed significant improvement in system performance throughout the series of tests conducted between September 2007and March 2008. Based on positive results from the track-based verification tests conducted in February and these on-road tests,it was recommended that the heavy-truck platform proceed to field testing in Phase II. Adjustments to alert timing wererecommended to further reduce the number of FCW and LDW nuisance alerts