chapter 5 managing risk with the ipde process. chapter 5 managing risk with the ipde process 5.1 the...
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CHAPTER 5
MANAGING RISK WITH THE IPDE PROCESS
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CHAPTER 5
MANAGING RISK WITH THE IPDE PROCESS5.1 THE IPDE PROCESS5.2 IDENTIFY AND PREDICT5.3 DECIDE AND EXECUTE5.4 USING THE IPDE PROCESS
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CHAPTER 5
RISK WHERE THE IS A CHANCE FOR LOSS, FINANCIALLY OR PHYSICALLY
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FACTORS THAT CONTRIBUTE TO DRIVING
RISKDRIVER CONTRIBUTED RISKS:ADJUSTING RADIOBEING ANGRYHAVING BLURRED VISIONCOMBING HAIRDRINKING WHILE DRIVINGUSING A CELL PHONE
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FACTORS THAT CONTRIBUTE TO DRIVING RISK
Vehicle contributed risks:Bald TiresBad brakesDirty windshieldBroken headlightsWorn wipers
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FACTORS THAT CONTRIBUTE TO DRIVING RISK
Environment contributed risks:Bright sunConstructionDark shadowsSnow and iceSharp curve
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THE IPDE PROCESS
• IS AN ORGANIZED SYSTEM OF SEEING, THINKING, AND RESPONDING
• “READING” TRAFFIC SITUATIONS TO GATHER INFORMATION IN ORDER TO MAKE YOUR DECISIONS AND EXECUTE THEM.
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THE IPDE PROCESS
IDENTIFY:Open and closed zonesCluesOther usersRoadway features and conditionsTraffic controls
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THE IPDE PROCESS
PREDICT:Actions of othersSpeedDirectionControl
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THE IPDE PROCESS
DECIDE:Change or maintain speedChange directionCommunicate
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THE IPDE PROCESSEXECUTE:Control your speedSteerCommunicateCombine actions (ie. Multi-tasking)
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THE SMITH SYSTEM
1. Aim high in steering2. Keep your eyes moving3. Get the big picture4. Make sure others see you5. Leave yourself an out
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ZONE CONTROL SYSTEM
1. See a zone change2. Check other zones3. Create time and space by
getting the best speed control
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ZONES AND SEARCHING
OPEN ZONE:Any zone where you
can drive without a restriction.
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ZONES AND SEARCHING
LINE OF SIGHT:The distance you can
see ahead in the direction you are looking.
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ZONES AND SEARCHING
PATH OF TRAVEL:The place where you
intend to go
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ZONES AND SEARCHING
TARGET AREA:the section of roadway
where the target is located in the center of your intended path
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Closed Zones:A space not open to
you because of a restriction in your line of sight or intended path of travel.
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ZONES AND SEARCHINGTarget Area Range:
The space from your vehicle to the target area.
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ORDERLY VISUAL SEARCH PATTERN
A process of searching critical areas in a regular sequence.
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Field of Vision
Central Vision: Narrow area you can see
very clearly directly in front of you.
Peripheral Vision:The area you can see to
the left and right outside your central vision.
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DEPTH PERCEPTION
• THE ABILITY TO JUDGE THE RELATIVE DISTANCE OF OBJECTS CORRECTLY.
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LOOK FOR OPEN ZONES
Look for clues that might lead to an open or closed zone.
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LOOK FOR OTHER USERS
Anyone who might effect your intended path of travel.
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GROUND VIEWINGGlancing at the front tires of approaching vehicles to help predict where they are headed.
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LOOK FOR ROADWAY FEATURES
Hills, Intersections, Curves, etc.
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CHANGE FROM
MULTILANE TO SINGLE
LANE
•Be prepared to change lanes.•Watch for others changing lanes
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LOOK FOR TRAFFIC CONTROLS
Be prepared to react to them in time.
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HOW TO PREDICT
Requires:•Knowledge•Judgment•Experience
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WHAT TO PREDICT?
Actions of othersYour control of your vehicle and the consequences of your actions
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DECIDE2 Decisions1. Decide to change
speeds2. Decide to change
direction
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SPACE CUSHION
The area of space all around your vehicle.
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•Lane position 1•Lane position 2•Lane position 3
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DECIDE TO COMMUNICATE•Headlights, taillights, brake lights•Turn signals•Parking lights or hazards•Back-up lights•Horn•Car position•Eye contact
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MINIMIZE THE HAZARD
Reduce the possibility of conflict by deciding to put more distance between yourself and the hazard
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SEPARATE THE HAZARDSAdjusting your speed in
order to deal with one hazard at a time.
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COMPROMISE SPACEGiving as much space as possible to the greater hazard
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PRACTICE IPDE
COMMENTARY DRIVING:
Thinking out loud while you drive.
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IPDE TAKES TIME
•The most important thing to remember is that you must have time to see clues, predict actions, decide what to do, and perform the safest maneuver.•Practice in low risk environments first, before moving into busier traffic.