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IPDE Process Chapter 4.

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Presentation on theme: "IPDE Process Chapter 4."— Presentation transcript:

1 IPDE Process Chapter 4

2 IPDE Process Need for organized system to drive
Reduces close calls and collisions Manage risk Driving Risks – 3 Components #1. Risk Factors due to Driver, even other drivers Adjusting radio Emotion – anger/your boyfriend/girlfriend just broke up with you Primping – combing hair, putting on mascara, shaving Drinking alcohol Cell phone use #2. Risk Factors due to Automobile Bald Tires Poorly adjusted brakes Ineffective Windshield Wipers Broken Headlight Dirty Windshield

3 IPDE Process Identify – use visual search pattern to look for
Driving Risks –continued #3. Roadway Risks Bright sun Construction Snow / Ice Sharp Curves Good drivers make every effort to manage & lower risks IPDE Process – organized system of see, thinking, making judgements and responding Identify – use visual search pattern to look for Clues Other users of the HTS (Highway Traffic System) assume they will make mistakes example: speeders Road Conditions – hills, curves, lane changes, bicyclists, pedestrians, intersections Traffic Concerns

4 IPDE Process IPDE Process – organized system of see, thinking and responding Identify – use visual search pattern Smith System - 5 Rules that help drivers develop good seeing habits Aim High In Steering – look seconds ahead of your vehicle Keep Eyes Moving Get the Big Picture Make Sure Others See You Leave Yourself an Out Zone Control System – organized method of managing the 6 zones around your car - see a zone change – check other zones – create space for yourself by adjusting speed & lane position – Communicate Open Zone – no restriction Line of Sight – intended path of travel Target Area – center of intended path Closed Zone – zone not open - restricted “line of sight” Examples: stop light (front zone), parked car (right front zone)

5 IPDE Process Zones – pg 65 & 66 Front Zone Rear Zone Right Front Zone
Left Front Zone Left Rear Zone Right Rear Zone Rear Zone

6 IPDE Process 3 Searching Ranges Target Area Range 12-15 Second Range
Distance ahead of vehicle Use to evaluate path of travel 12-15 Second Range Space will travel in next 12-15 seconds 4-6 Second Range 4-6 seconds 12-15 Second Range 4-6 Second Range

7 IPDE Process Checking Your Zones Orderly Visual Search Pattern
Sample: Driving Straight: Target Area Left Front – Front – Right Front in sec range Rear Zone - Rearview mirror 4-6 second range 12-15 second range 4-6 range Rearview mirror Speedometer & Gauges Don’t stare Practice as a passenger

8 IPDE Process Field of Vision – area see around you
Most of us can see 90 degrees to each side = 180 degrees Central Vision – right in front of you 10 degrees – see clearly Peripheral Vision – area see to right or left – Outer edges see less clearly Central Vision Peripheral Vision Peripheral Vision FIELD OF VISION

9 IPDE Process Review Identify Component:
Aim High Steering – look ahead (12-15 sec) Keep Eyes Moving – develop scanning technique Get The Big Picture Develop Selective Seeing Choose only events that impact your driving! Open zones that may close Examples: Parked car with wheels turned or exhaust from tail pipe Look for other Users- anticipate them doing the wrong thing! Examples: Speeders Look for Roadway Conditions – Intersections, Hills, Lane changes, road surfaces, bicyclists, pedestrians

10 Predict – once you identify - predict how it may effect you
IPDE Process Predict – once you identify - predict how it may effect you What is happening, what could happen, how could this effect you?? Example: Pg 72 – bicyclist & on coming car to left What do you do? Knowledge & Experience will help you identify & predict quicker & faster Most predictions related to changes in zones and looking for an out Don’t Assume other drivers will make good decisions Predict ✔Path of other drivers ✔Action of others ✔Space – Will I have an open zone ✔Pont of Conflict – No open space, where may the conflict occur – Where paths may cross Examples: pg 73

11 IPDE Process The more complex situation, the more difficult to identify & predict Speed – Most important factor in control of your vehicle Changes with traffic & weather conditions Increased Speed decreases time available for IPDE process Traction – basic requirement for vehicle control Gripping power between tires and road surface

12 Decide IPDE Process Once you’ve identified a situation…
Predicted a possible conflict … Decide upon the action Followed by Execute step Examples: Maintain speed Change speed may not always mean slowing down

13 IPDE Process Decide Examples: Change direction – keep a space cushion - continued May change lane positions to keep cushion pg 76 Center of Lane Right Side of Lane Left Side of Lane May need to make greater change Try to detect a changing zone condition 12 sec in advance

14 Decide IPDE Process Strategies to keep space around your vehicle
Examples: continued Communicate with others Lights – headlights, taillights, brake lights, turn signal, etc Horn Car Position Eye Contact Body Movement Combination Strategies to keep space around your vehicle Minimize Hazard –put distance between self and hazard Example: Passing parked cars

15 IPDE Process Strategies to keep space around your vehicle
Separate Hazards–more than one hazard at a time Don’t handle them all at one time You do this by adjusting your speed Example: On coming car and parked cars on right Compromise Space – Sometimes hazards can’t be minimized and can’t be separated Give as much space as possible to greater hazard Example: On coming car moves into your lane with cars parked on right

16 Execute carry out decision to avoid conflict
IPDE Process Execute carry out decision to avoid conflict Control Speed Accelerating Decelerating / Braking Check Rear Zone Avoid Locking Brakes – loose steering control Most cars have antilock breaks – break hard – don’t pump breaks Steer Don’t over steer – could loose control Don’t make jerky sudden movements Communicate Make it early so other know your intentions Combined Actions

17 IPDE Process Putting It Into Action Practice – as you ride with others
Commentary Driving – talk out loud Takes Time The more complex traffic situation the longer it takes

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