Transcript Lecture # 9 MVF.pptx

St. Francis
Prep
Driver
Education
Lecture # 9
Driving In
Adverse Weather
Conditions
(pg.274-278)
Driving In Adverse Weather
Conditions
What is an adverse weather condition?
An unfavorable condition.
What are some unfavorable or adverse
conditions?
Glare
Rain
Snow
Ice
Glare
Glare is a bright light that hits the
windshield. Glare reduces visibility and many
times can temporarily blind a driver.
•Glare can cause you to become more easily
fatigued.
Glare
What conditions create glare from the sun?
Sun glare is most dangerous at certain
times.
oEarly & Late in the day when you drive directly
into the sun.
Glare can be caused by reflection off of
other vehicles.
When the sun is low in the horizon glare can
make it hard to see
oBrake lights, Glare is worse with a dirty
windshield
Driving Safely In Glare
Prepare in Advance
Make sure the windshield is clean.
Replace badly scratched and pitted front
windshield
Use sunglasses.
Reduce your speed/leave more distance.
Keep in mind others may not see you.
Rain & Snow
How do rain and snow affect visibility, time,
and space?
You won’t be able to see far in any direction.
You may not see the edge of the road way.
Snow collecting on your windshield can cause
blind spots.
Rain & Snow
How do rain and snow affect visibility, time,
and space?
Snow & Rain can make the road way slick.
You won’t be able stop and steer as securely as
you would on a dry road.
It is more difficult to judge distances.
Precautionary Measures In Rain
& Snow
Advanced Preparations
Clean Windows.
Clean the lights.
Check tire tread and pressure.
Check headlights.
Check windshield wipers.
Check defroster
Precautionary Measures In Rain
& Snow
Margin of Safety
Drive slower.
Leave extra space between your vehicle and
other vehicles.
Low Beam Headlights
This increases the distance you can see.
Makes your car more visible to other
drivers and pedestrians.
Precautionary Measures In Rain
& Snow
Vehicle Tracks
In wet pavement drive in the tracks of the
vehicles ahead of you.
Advance Notice
Give advance notice when you intend to turn
Give advance notice when you intend to stop
Signal EARLY!
Ice
 Horrible idea to be out on the road!!!!!!
 Reduce your speed to a crawl!
 Get off the road ASAP!
Turns & Curves
Avoid sudden:
•Acceleration
•Stops
•Movements of the steering wheel
Be Alert!
Minimize Your Risk in Rain &
Snow
In snowy or icy conditions wait until roads are
clear.
If you must drive
•Go slow
•Leave a huge margin of safety.
•Use gradual slow movements.
Minimize Your Risk in Rain &
Snow
Anticipate and prevent hydroplaning.
•The first 10-15 minutes are the most dangerous.
•Dirt & oil form a slippery film.
•Even at speeds as low as 35MPH the vehicle can
begin to skim along the wet surface.
•Tires lose complete contact with the road –
hydroplaning.