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Human Factors Guidelines for Road Systems, Collection B: Chapters 6, 22 (Tutorial 3), and 23 (Updated) (2009) / Chapter Skim
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Tutorial 3: Detailed Task Analysis of Curve Driving
Pages 16-18

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From page 16...
... The cognitive requirements typically refer to the evaluations, decisions, and judgments that drivers have to make about the curve or the driving situation. The psychomotor requirements refer to the control actions (e.g., steering wheel movements, foot movements to press brake, etc.)
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From page 17...
... 2.3 Make additional Look at speedometer Read speedometer and/or Execute necessary foot speed and/or view speed cues judge safe speed based on movements to achieve adjustments from environment cues and experience desired speed change 2.4 Adjust vehicle Look at roadway/lane Determine the amount of Head and eye movements path for curve marking information in the steering wheel displacement needed for viewing, and entry immediate forward view required to achieved desired precise arm movements for lane position steering control 3. Entry and Negotiation 3.1 Adjust speed Perceive lateral Judge safe speed based on Execute necessary foot based on acceleration and look at visual cues and experience or movements to achieve curvature/lateral roadway motion cues read speedometer desired speed change acceleration 3.2 Maintain proper Look at tangent point or Determine amount of steering Head and eye movements trajectory intended direction wheel displacement required needed for scanning, and to achieved desired heading precise arm movements for steering control 3.3 Maintain safe Look at roadway/lane Determine amount of steering Head and eye movements lane position marking information in the wheel displacement required needed for viewing, and immediate forward view to achieved desired lane precise arm movements for position steering control 4.
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From page 18...
... To determine this information, the details about the information-processing subtasks and any other necessary information were identified by the authors based on expert judgment and other more general sources of driving behavior and human factors research (e.g., Groegor, 2000; Salvendy, 1997; Underwood, 1998)
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Key Terms

  • eye movements
  • curve driving
  • driving task
  • desired speed
  • speed change

  • read speedometer
  • wheel displacement
  • speed based
  • driving tasks
  • safe speed

  • steering head
  • determine amount
  • lane position
  • precise arm
  • judge safe

  • achieved desired
  • displacement required
  • arm movements
  • view speed
  • speed cues

  • requirements typically
  • subtasks associated
  • cognitive requirements
  • typically refer
  • marking information

  • primary segments
  • perceptual requirements
  • forward view
  • psychomotor requirements
  • immediate forward


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