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Chapter 4

Chapter 4. IPDE PROCESS. Identify Predict Decide Execute. What are driver contributed factors?. Adjusting music Anger Blurred vision Grooming Drinking while driving Cell phone. Vehicle contributed factors. Bald tires Brake problems Dirty windshield Broken headlight

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Chapter 4

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  1. Chapter 4

  2. IPDE PROCESS • Identify • Predict • Decide • Execute

  3. What are driver contributed factors? • Adjusting music • Anger • Blurred vision • Grooming • Drinking while driving • Cell phone

  4. Vehicle contributed factors • Bald tires • Brake problems • Dirty windshield • Broken headlight • Worn windshield wipers

  5. Roadway/Environmental Factors • Bright sun • Construction • Shadows • Snow & ice • Sharp curves

  6. What things should you "Identify" • Signs • Car turning • Pedestrian • Red light • Road conditions

  7. What is an "Open Zone"? • There is no restricted view • What is a "Closed Zone"? • The view is restricted as in a Red light

  8. What things can you "Predict"? • Actions of other people • Speed - yours & others • Direction • Control • Points of conflict

  9. What things can you "Decide"? • To change speed • To change direction • Communicate

  10. What things can you "Execute"? • Controlling your speed • Steering • Communicate • Combine any actions

  11. Smith System • Aim high while steering - 12-15 seconds ahead • Get the big picture - put clues together • Leave yourself an "out" • Make sure they see you

  12. Zone Control System • See a zone change- LF, LB, F, R, RF, RB (width of a lane and extends as far as you can see) • Check other zones • Create time & space by getting the best speed control, lane position & communication

  13. IDENTIFY & PREDICT

  14. What is the "Target Area Range""? • Space from vehicle to target area • 12-15 second range • Space with the next 12-15 seconds of travel • Locked brakes make what impossible? • Steering

  15. What is the "Orderly Visual Search Pattern"? • Looking and evaluating from target area throughout all zones and checking all ranges • Checking mirrors • Should only glance for a second/don't stare

  16. What is "Field of Vision"? • Area you can see while looking straight ahead- includes peripheral vision • How many searching ranges are there? • 3 - target area/12-15 second range/4-6 second range

  17. What are some roadway features and conditions to look for? • Intersections • Curves • Hills • Lane changes • Change of lane width • Roadway surface - weather • Roadside hazards • Eg. Bikes/pedestrians/parked vehicles/animals

  18. DECIDE & EXECUTE

  19. In what ways can you change your speed? • Decelerate/Brake/Accelerate • What ways can you change direction? • Move towards the right or left side of the lane/change lane/ leave a space cushion

  20. Lane Positions • Lane 1: center of lane • Lane 2: left side of lane • Lane 3: right side of lane

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