Safety impact of an integrated crash warning system based on field test data.

Details

• Creators:
  Nodine, Emily E. ; Lam, Andy H. ; Najm, Wassim G. ; Ference, John J.
• Corporate Contributors:
  John A. Volpe National Transportation Systems Center (U.S.) ; United States. Department of Transportation. National Highway Traffic Safety Administration
• Subject/TRT Terms:
  • Advanced driver information systems
  • Crash avoidance systems
  • Intelligent vehicles
  • Integrated systems
  • Field tests
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Department of Transportation. National Highway Traffic Safety Administration
• Abstract:
  This paper provides the results of an analysis ; conducted to assess the safety impact of an integrated ; vehicle-based crash warning system based on ; naturalistic driving data collected from a field ; operational test. The system incorporates four ; functions that warn the driver of an imminent rear end ; crash, excessive speed to an upcoming curve, ; lane-change crash, or unintentional lane departure. ; The safety impact is assessed in terms of observed ; changes in driving behavior, exposure to driving ; conflicts, near-crash experience, and projected ; potential reductions in the number of annual target ; crashes. Unintended consequences are examined by ; analyzing driver engagement in secondary tasks and ; eyes-off-the-forward-scene behavior. A total of 108 ; subjects, split by gender and three age groups, ; participated in the field test by driving in an ; unrestricted manner for a period of six weeks each. ; In the first two weeks, designated as the baseline ; period, the subjects performed their naturalistic ; driving with the system turned off while the data ; acquisition system collected their performance data. ; In the last four weeks, designated as the treatment ; period, the system was turned on and provided the ; subjects with visual, auditory, and haptic crash ; warning signals. This paper discusses the safety impact ; of the system for individual subject groups based on ; gender and age. The integrated system has the ; potential to reduce the number of rear-end, opposite direction, ; lane-change, and road-departure crashes ; involving at least one passenger car. Moreover, the ; system did not influence drivers to engage in more ; secondary tasks.
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• Download URL:
  https://rosap.ntl.bts.gov/view/dot/9157/dot_9157_DS1.pdf
• File Type:
  [PDF - 415.29 KB]
• Collection(s):
  Volpe Center
• Main Document Checksum:
  urn:sha-512:e382e81d79e0c28bb1970f6546cabd0c1099d240f3fcfe71b08c8f767436da8a9b24fb01d4b2fdd0b5fc1036dd6e0fc2d6d795fa2924fc92c89ed45d0b8f1f86