1. Driver Education Section VI
Day 1 - Occupant Protection
Day 2 - Adverse Driving Conditions
Day 3 - Traction Concerns
Day 4 – Test

2. Study for your Quiz 10 Minutes to study
When you finish the quiz do you Bell Ringer

3. Day 3 – Traction Concerns
Bell Ringer –
3 paragraphs 5 sentences each
Can do 1 paragraph for each question
You are getting ready to leave for work, when you get outside this is what your road looks like. Write a story about your adventure to work, talk about the precautions you had to take and the troubles you had on your way to work.

4. Causes of Traction Loss DOE PP > Module 8
Handout
Condition of the Vehicle
Brakes unevenly adjusted
Brakes pulling in one direction or the other can cause a skid--as can wheels out of alignment when brakes are applied
Tires with unevenly worn tread
- The size of the front and rear tires do not match
- The tread depth or tire type of the front and rear tires are different
Different tire pressure on opposite sides of the vehicle has a similar effect to uneven brake adjustment since one tire will drag more than others

5. Causes of Traction Loss DOE PP > Module 8
Handout
Driver Actions
Sudden steering actions on a slippery surface, or abrupt or sudden changes in vehicle speed
Panic stop or applying the brakes too hard on a hill curve or slippery surface
Suddenly engaging the clutch on a slippery surface

6. Causes of Traction Loss DOE PP > Module 8
Handout
Driver Actions
Most driver-induced skids are caused by:
excessive speed
coupled with excessive steering input
or improper braking when turning
Loss of traction also occurs with these driver’s actions at normal speeds on ice/snow or on roadways covered by sand, gravel, or water

7. Traction Loss Considerations DOE PP > Module 8
Handout
Sudden shifts of vehicle weight causes traction loss - Left, Right, Forward, or Backward
Simultaneous steering, braking and/or acceleration creates sudden shifts in vehicle balance
Traction loss compounds crash consequences

8. Force or Weight Movement
Traction Loss Considerations DOE PP > Module 8
Handout
When Brakes are Applied Too Hard or Quickly
Weight Moves to the Front of the Car Causing
a noticeable drop of the hood
a noticeable rise of the rear deck
forward movement of driver and passengers
Rear LIFTS
Front DROPS
Force or Weight Movement
Direction of Travel

9. Traction Loss Considerations DOE PP > Module 8
Handout
When Acceleration is Applied Too Hard or Quickly
Weight Moves to the Rear of the Car Causing
a noticeable rise of the hood
a noticeable drop of the rear deck
rearward movement of driver and passengers
Rear DROPS
Front LIFTS
Force or Weight Movement
Direction of Travel

10. Force or Weight Movement
Traction Loss Considerations DOE PP > Module 8
Handout
When Steering is Applied Too Hard or Quickly
Weight Moves to the Opposite Side of the Car
Weight Movement Causes:
a noticeable drop and tilt of the hood
a noticeable rise and tilt of the rear deck
driver and passenger movement towards the car’s corner
Force or Weight Movement
Front DROPS
Direction of Travel
Rear LIFTS

11. Intended Path of Travel
Traction Loss to Front Tires DOE PP > Module 8
Handout
If A Vehicle Keeps Moving Straight Ahead in Spite of Steering Efforts To the Contrary, It Means Front Traction Has Been Lost
The Technical Term is Called “Under steer”
The Driver Will First Visually Identify Unusual Forward Sliding Movement Caused by the Vehicle’s Weight Pushing the Front Wheels Straight Ahead Regardless of Any Steering Input
front tires SLIDE
rear tires PUSH
Intended Path of Travel
Actual Path of Travel

12. Lift Eyes to Targeted Path of Travel Intended Path of Travel
To Correct Front Traction Loss DOE PP > Module 8
Handout
Targeted Path of Travel
Lift Eyes to Targeted Path of Travel
Intended Path of Travel
Actual Path of Travel
Direct Vision to Targeted Path of Travel
Activate ABS, if Vehicle is Equipped
Ease off Conventional Brake System
Reestablish Rolling Traction
Ease off Steering Inputs
Abrupt Steering Can Create Traction Loss
Allows Tire Tread to Point Toward Path of Travel
Jab/Stab Brake to Move Weight Forward if ABS is not Available
(ABS performs this function automatically)

13. Traction Loss to Rear Tires DOE PP > Module 8
Handout
Identified by driver when front of vehicle moves to the left or right of travel path without steering input in that direction
Technical term is “Over steer”
Vehicle’s Weight Tends to Push Rear Wheels Left or Right Without Steering Input
Vehicle Begins To Yaw
front tires ROLL
rear tires SLIDE
Intended Path of Travel
Actual Path of Travel

14. To Correct Rear Traction Loss DOE PP > Module 8
Handout
Direct Vision to Targeted Path of Travel
Rear Tire Movement
Activate Traction Control System, if Equipped:
Ease off brake or accelerator
Reestablish rolling traction
Off Targeted Path
On Targeted Path
Intended Path of Travel
Steer Toward Targeted Path of Travel
Adjust Steering Input as Needed to Maintain Targeted Path of Travel
Apply Light Progressive Acceleration (2 mph is goal) to Move the Weight to the Rear. (The Traction Control System will adjust the speed and brakes automatically when activated)

15. Off Road Recovery DOE PP > Module 8
Handout
Do not panic and steer too abruptly
Ease off accelerator
DO NOT BRAKE
Get both wheels off the pavement
Steer the vehicle parallel to the roadway
If clear, ease back on to the roadway one wheel at a time
Limit steering inputs to less than 1/8 of a turn of the wheel
Use even less input when the edge of road is high
Target the center of the adjacent lane to avoid a “Slingshot” maneuver into oncoming traffic

16. Electronic Stability Protection Video Clip (Over and Under Steer)

17. Classwork #6 Read Pages 257 – 259
“Natural Laws and Steering and Braking
Answer Lesson 2 Review Question 1 - 4

18. Video – “In Control” 31 Minutes

19. Remember
Test Tomorrow