PPT Slide

• Warning signs should provide adequate time for the driver to perceive, identify, decide, and perform any necessary maneuver. This is generally referred to as PIEV.

• PIEV
  • Perception
  • Identification/ understanding
  • Emotion/ decision making
  • Volition / execution of decision

• The PEIV time can vary from about 3 seconds for general warning signs to 10 seconds for high driver judgement condition warning signs. (This includes sign legibility distance and braking or maneuvering distance.)

• Reference: The Manual on Uniform Traffic Control Devices, 1988 edition, Para. 2C-3.

5.9 GHz DSRC ROADSIDE TO VEHICLE APPLICATION

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