How do distracted and normal driving differ : an analysis of the ACAS naturalistic driving data

Details

• Alternative Title:
  SAfety VEhicles using adaptive interface technology (SAVE-IT project) task 3C : performance
• Creators:
  Green, Paul E. ; Wada, Takahiro ; Oberholtzer, J. ; Green, P. A. ; Schweitzer, J. ; Eoh, Hong
• Corporate Contributors:
  Delphi Delco Electronics Systems
• Subject/TRT Terms:
  Attention Crashes Distraction Drivers Driving Performance Ergonomics Human Factors ITS Safety Statistical Analysis Tables (Data) Telematics Usability

  More +
• Publication/ Report Number:
  Technical Report UMTRI-2006-35
• Resource Type:
  Research Paper
• Edition:
  1/05-5/07
• Corporate Publisher:
  University of Michigan. Transportation Research Institute
• Abstract:
  To determine how distracted and normal driving differ, this report re-examines
  
  driving performance data from the advanced collision avoidance system (ACAS) field
  
  operational test (FOT), a naturalistic driving study (96 drivers, 136,792 miles).
  
  In terms of overall driving performance statistics, distraction (defined as 4
  
  successive video frames where the driver’s head was not oriented to the forward
  
  scene) had almost no effect, except for decreasing mean throttle opening by 36% and
  
  mean speed by 6%. No consistent normal/distracted differences were found in the
  
  parameters that fit the distributions of steering wheel angle, heading, and speed (all
  
  double exponential) and throttle opening (gamma) for each road type by driver age
  
  combination.
  
  In contrast, logistic regression identified other statistics and factors that
  
  discriminated between normal and distracted driving. They included (a) turn signal
  
  use and age group for expressways, (b) gender and if the lead vehicle range
  
  exceeded 60 m for major roads, and (c) lane width, lane offset, and lead vehicle
  
  velocity for minor roads.
  
  Finally, in a supplemental analysis, throttle holds (1 - 4 s periods of essentially no
  
  throttle change suggesting the driver may not be attending to driving) were actually
  
  more common for normal driving when a single time window (1 s) by threshold change
  
  combination (4 %) was selected. However, when settings (time windows of 1 – 4 s,
  
  thresholds of 1 – 4 %) were tailored for each age group by road class combination,
  
  throttle holds could identify when the driver was distracted.
  
  
• Format:
  PDF
• Funding:
  DRDA 04-4274
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:d7dd84b549833163b446c3eb8132365f8846a26d9b5dd2477fa458bf4bb0434d
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/5714/dot_5714_DS1.pdf
• File Type:
  [PDF - 1.24 MB ]