1. Driving in Adverse Conditions
Chapter 12
Driving in Adverse Conditions
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Driving in Adverse Conditions

2. Driving Videos of Adverse Weather Conditions
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Driving in Adverse Conditions

3. Chapter 12
EQ: What are some techniques that you can use for night driving?
Overdriving Headlights – driving at a speed that makes stopping distance longer than the distance lighted by your headlights.
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Driving in Adverse Conditions

4. Reduced Visibility
When visibility is reduced, more time is needed to use the IPDE Process.
In this chapter we will be discussing some techniques you can use when driving in a variety of adverse conditions.
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Driving in Adverse Conditions

5. Your Vehicle Windows KEEP IT CLEAN! Use your wiper fluid
Front and rear defrosters
Clean windows and lights before going out into adverse weather
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Driving in Adverse Conditions

6. Sun Glare Sunglasses Use your visor
Try to avoid looking directly at the Sun
Use your low beams so other drivers can see you
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Driving in Adverse Conditions

7. At Dusk and Dawn
Low visual contrast between moving vehicles and the driving scene can be deceiving.
Again, by driving with your low beam you can make yourself more visible to other drivers.
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8. Driving at Night
Low levels of light at night severely limit the use of the IPDE Process.
What are some things you would see during the day that you might not see at night?
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Driving in Adverse Conditions

9. High-beam headlights are used to see things further down the road.
Using Your Headlights
High-beam headlights are used to see things further down the road.
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10. Using Your Headlights cont.
Switch to low-beams…..
-when following other cars.(1/2 mile)
-the instant you see the lights of an oncoming vehicle.
-if another vehicle passes you.
This will help prevent you from blinding
other drivers with your headlights.

11. Using Your Headlights cont.
Use your low-beams in weather like snow, heavy rain, or fog
Reason: Your high-beams will reflect more light back into your eyes in these weather conditions.
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12. Using Your Headlights cont.
When meeting other drivers who fail to switch to their low-beams... 1.Briefly flick high-beams 2. Slow down and glance to the right if driver doesn’t respond 3. Don’t stare directly into oncoming High-beams
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13. FOG RAIN SNOW Use low-beams and wipers Slow down
Increase your space cushion
Keep your windows clean and clear
(washer fluid, defroster, ice scraper)
If driving conditions are too dangerous, delay
your trip or find a safe place to “wait it out”.
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14. Assignment: Pg. 233 (1-3)
What actions should you take when using the IPDE process in limited-visibility situations?
What steps can you take to help others see you at dawn and dusk?
When should you use low beam headlights at night?
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15. Chapter 12.2 EQ: How do you avoid hydroplaning?
Hydroplaning – when a tire loses road contact by rising up on top of the water and no longer has contact with the road.
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16. Reduced Traction Four common conditions that can limit your traction:
RAIN
SNOW
ICE
SAND, GRAVEL, MUD and other debris
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17. RAIN When rain first starts roadway can be very slick.
Reduce speed to compensate for loss of traction.
When rain first starts roadway can be very slick.
SLOW DOWN AND LIGHTLY TEST
YOUR BRAKES!
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18. RAIN Cont.
Hydroplaning When a tire loses contact by rising up on top of water and no longer has contact with the road, hydroplaning occurs.
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19. RAIN cont.
Causes of hydroplaning: Water Speed Tire Condition Prevention: Reduce your speed Have properly inflated tires with good tread

20. RAIN Cont. When in doubt don’t! Driving through deep water
1. Estimate depth w/ cars or other objects
2. Drive slow in low gear
3. Apply light brake pressure with left
foot while driving to insure brake is functional (after)
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21. Driving in Snow SNOW Gentle acceleration, steering and
braking are the keys to
controlling your vehicle in snow.
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22. SNOW cont. 1.Straighten wheels If at all possible don’t drive in snow!
Tips for driving in snow:
If at all possible don’t drive in snow!
Use all-season tires
Use Rocking technique if stuck in snow
1.Straighten wheels
2.Gently accelerate forward and backwards
3.Continue until tracks are made long enough to drive out.

23. ICE Check for traction Slow gradually if car begins to slide
Predict the worst when ice begins to form
Check for traction
Slow gradually if car begins to slide
If you don’t have to drive don’t
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24. ICE cont. Ice on bridges Black Ice Ice on tire tracks 4/16/2017
Driving in Adverse Conditions

25. Braking Accelerating or Steering Can happen on any surface during:
SKIDDING
When your tire loses all or part of it’s traction on the road.
Can happen on any surface during:
Braking
Accelerating or
Steering
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26. Ways to prevent skidding: Slow ahead of time Early detection
SKIDDING cont.
Ways to prevent skidding:
Slow ahead of time
Early detection
Aim High in Steering!
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27. Steer in direction you want to go Pump brakes if you don’t have ABS
SKIDDING cont.
How to correct skidding situations
Never lock your brakes
Let off accelerator
Steer in direction you want to go
Pump brakes if you don’t have ABS
Slow down!
If you have ABS apply brakes firmly

28. Tips For Winter Driving
Listen for traffic reports
Keep windows clean
Lower your speed
Keep a safe following distance
Keep moving in snow
Use lower gears on slippery roads
Avoid cruise control

29. Assignment: pg. 241 (1-4)
How do rain and snow affect a vehicle’s traction?
How does hydroplaning affect vehicle control?
How do you know if you are experiencing an understeer situation?
How can a driver attain maximum controlled braking in a vehicle that is not equipped with ABS?
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