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. National Highway Traffic Safety Administration
• Subject/TRT Terms:
  Advanced Driver Information Systems Collision Avoidance Systems Field Tests Integrated Systems Intelligent Vehicles
• Resource Type:
  Tech Report
• Corporate Publisher:
  United States. 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.
  
  
• Format:
  PDF
• Collection(s):
  Volpe Center
• Main Document Checksum:
  urn:sha256:a9a4f0c8179822140d36962eb3d8ff0fe13a9388353246e704d3c82e6757d5fd
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/9157/dot_9157_DS1.pdf
• File Type:
  [PDF - 415.29 KB ]