Volvo Trucks Field Operational Test: Evaluation of Advanced Safety Systems for Heavy Truck Tractors

The Intelligent Vehicle Initiative (IVI) was established by the United States Department of Transportation as an integral part of the Intelligent Transportation System (ITS) program. By reducing the probability of motor vehicle collisions, the IVI was intended to improve the safety and efficiency of motor vehicle operations. In September of 1999, the United States Department of Transportation, Federal Highway Administration entered into Cooperative Agreement No. DTFH61-99-X-00102 with Volvo Trucks North America in partnership with US Xpress Leasing, Inc. for a Field Operational Test (FOT) to determine the potential safety benefits of Advanced Safety Systems on heavy tractors. Additionally, Advanced Safety System durability, reliability, operational cost, and driver acceptance were to be evaluated. The Advanced Safety Systems consisted of a vehicle-integrated rear-end collision warning system (CWS), adaptive cruise control (ACC), disc brakes, and an electronically controlled brake system (ECBS). These systems were developed to reduce the frequency and severity of rear-end collisions. The objectives of the FOT were as follows: (1)Evaluate the performance of the Advanced Safety Systems as operated in a real world environment. (2) Accelerate the deployment of the Advanced Safety Systems. (3) Help forge strategic partnerships in the transport industry as a model for public-private cooperation for the development and deployment of advanced transportation safety technologies. (4) Assess the state-of-the-art in safety benefits analysis for vehicle integrated Advanced Safety Systems. The 3-year data collection involved 100 new tractors consisting of 50 (Control) vehicles equipped with US Xpress normal specifications (including CWS), and 50 (Test) vehicles equipped with the Advanced Safety Systems. Baseline vehicles (a 20-vehicle subset of the 50 Control vehicles) were operated for part of the FOT with their CWS driver displays disconnected. All of the FOT vehicles were equipped with onboard data acquisition systems. Beginning in January 2001, the vehicles were placed into service with US Xpress, and were operated in normal revenue generating service throughout the 48 contiguous United States. This report presents findings based on an engineering analysis of data collected from the onboard vehicle data acquisition systems, as well as operational data from Volvo warranty files, US Xpress accident and incident files, and vehicle brake component measurements. A separate, related report is in preparation by the FOT Independent Evaluator, Battelle, to determine safety benefits from the FOT.


  • English

Media Info

  • Media Type: Web
  • Edition: Final Report
  • Features: Appendices; Figures; References; Tables;
  • Pagination: 131p

Subject/Index Terms

Filing Info

  • Accession Number: 01046806
  • Record Type: Publication
  • Contract Numbers: DTFH61-99-X-00102
  • Files: NTL, TRIS, USDOT
  • Created Date: Apr 13 2007 11:24AM