Date post: | 11-Jan-2016 |
Category: |
Documents |
Upload: | hillary-meredith-waters |
View: | 217 times |
Download: | 4 times |
Section 5 Day 3
Driver Responsibility: Adverse Conditions
Heavy Smoke, Rain, or Snow, Fog & Strong Wind
Bell Ringer #3
Write a half a page red to red. Save these to be turn in on test day. Worth 10% of your grade.
People listen to music for different reasons and at different times. Why is music important to many people? Use specific reasons and examples to support your choice.
Reminder1.1. Bring paper/pen/pencil and notebookBring paper/pen/pencil and notebook
2.2. Electronics are for instructional use with permission Electronics are for instructional use with permission
3.3. Don’t forget to do daily quizzes on QUIA.COMDon’t forget to do daily quizzes on QUIA.COM
4.4. No Excuses why you don’t take Quizzes 1-6 No Excuses why you don’t take Quizzes 1-6
before test day!! (Quizzes are worth 30% of grade)before test day!! (Quizzes are worth 30% of grade)5.5. Attendance is MANDATORY!! (NO SLEEPING in class)Attendance is MANDATORY!! (NO SLEEPING in class)
6.6. All notes can be found on Harrisonburg’s staff website:All notes can be found on Harrisonburg’s staff website:
http://staff.harrisonburg.k12.va.us/~tbutler/http://staff.harrisonburg.k12.va.us/~tbutler/
7.7. If you are NOT taking notes in class, please be quiet and If you are NOT taking notes in class, please be quiet and ask to use the restroom at the end of class.ask to use the restroom at the end of class.
This is what you are trying to get at the end of class..This is what you are trying to get at the end of class..
Harrisonburg High School
H.C.P.S
36
x
03/06/2012
Your Name Here
“Green Card”
Objectives: (Day 3)
Students will understand visibility limitations isibility limitations in bad weatherin bad weather
Students will understand unusually strong wind conditions
Students will understand low water crossings Students will understand different types of different types of
floodsfloods Students will understand driving in extreme
hot and cold temperatures
Heavy Smoke, Rain, Fog or Snow
In an instant, the following can occur: Smoke is evident ahead. Suddenly
smoke and ashes from a large brush fire cover the road.
It is sprinkling. A few moments later, rain is falling in a solid sheet.
Snow is falling lightly. Two miles down the road, it becomes a whiteout.
DO NOT WRITE THIS SLIDE
Visibility LimitationsVisibility Limitations
Reduce speedReduce speedMake sure your headlights are on low beam (aimed Make sure your headlights are on low beam (aimed at the road surface) to reduce the amount of at the road surface) to reduce the amount of light/glare reflected back at youlight/glare reflected back at youTurn on your windshield wipersTurn on your windshield wipersIf necessary, turn on the defroster or air conditionerIf necessary, turn on the defroster or air conditioner
Driving in Driving in Bad WeatherBad Weather
Visibility Limitations in Bad WeatherVisibility Limitations in Bad Weather
Reduce speed, but NEVER stop in a Reduce speed, but NEVER stop in a travel lanetravel lane
Turn on emergency flashersTurn on emergency flashers Look for an exit from the highwayLook for an exit from the highway
Visibility Limitations in Bad WeatherVisibility Limitations in Bad Weather
stop beyond end of guard railback up to outboard of the
guard railturn off all lights (WHY??)wait for the bad weather to
pass
If impossible to leave highway:
If your stopping distance is longer
than your sight distance, you have
created a high risk situation – slow
down
Visibility Limitations in Bad WeatherVisibility Limitations in Bad Weather
Sto
pp
ing
Dis
tan
ceS
top
pin
g D
ista
nce
Visibility Visibility RangeRange
Braking distances at 20 mph with conventional tires on different pavement conditionsBraking distances at 20 mph with conventional tires on different pavement conditions
Ice - 150 feet
Packed Snow - 60 feet
Wet - 25 feet
Dry - 20 feet
Unusually Strong Wind Conditions
Strong winds create a problem called buffeting.
Buffeting: To strike against forcefully
This condition can occur on bridges and when being passed by large trucks.
These wind gusts and blasts can cause total loss of vehicle control.
How To Respond to Wind
Reduce speed. Grip the steering wheel firmly to
maintain vehicle control. Leave extra space between your
vehicle and other vehicles. Be prepared to counter steer. Stay off brake
Low Water Crossings
Low Water Crossings
Nearly 50% of flash flood Nearly 50% of flash flood fatalities are vehicle relatedfatalities are vehicle related
Search for flood prone Search for flood prone areas: areas:
- highway dips- highway dips
- bridges- bridges
- low areas- low areas
Most vehicles will float Most vehicles will float
Very little water on the Very little water on the road surface can cause loss road surface can cause loss of controlof control
Low Water Crossings
Driving too fast through water will cause the vehicle to hydroplane and lose contact with the road surface.
5 Types of Floods
Coastal Flood
Urban Flood
River Flood
Flash Flood
Ice Jam
River Floods Occur seasonally when heavy
rains fill rivers or Heavy rains from hurricanes or
tropical systems
Coastal Floods
Winds generated from tropical storms and hurricanes can drive ocean water inland.
Earthquakes can also produce waves called tsunamis, sometimes referred to as tidal waves.
Urban Floods
As land is converted from fields or woodlands to roads and parking lots, it loses its ability to absorb rainfall.
Streets can become swift moving rivers.
Flash Flooding An arroyo is a water-carved gully
or normally dry creek bed. Arroyos can fill with fast-moving
water very quickly.
Ice Jams
Floating ice can accumulate at a natural or manmade obstruction and stop the flow of water.
Extreme Temperatures
+32
+120
-40
O
O
O
+32
+120
-40
O
O
O
Hot and Cold Temperatures
Vehicles are designed to operate in a wide range of Vehicles are designed to operate in a wide range of temperatures, from very hot to extremely cold.temperatures, from very hot to extremely cold. However, However, these extreme conditions can cause stress to any vehicle part these extreme conditions can cause stress to any vehicle part that is temperature sensitive.that is temperature sensitive.
• Tires should be balanced, aligned, Tires should be balanced, aligned,
the proper type, and have adequate treadthe proper type, and have adequate tread
- The legal minimum, 2/32 of an inch tread depth,
is inadequate on wet surfaces
• Check tire inflationCheck tire inflation
- Check cold tire pressure regularly
(noted inside driver’s door or in manual)
• Check radiator coolant, hoses, and connectionsCheck radiator coolant, hoses, and connections
Cold Weather PrecautionsCold Weather Precautions
Cold Weather ChecksCold Weather Checks
Check heater, defroster Check heater, defroster
and air conditioner systemand air conditioner system
Winterized windshield wiper fluidWinterized windshield wiper fluid
Check drive belts for tension and wearCheck drive belts for tension and wear
Keep lights and glass areas clear and cleanKeep lights and glass areas clear and clean
Check windshield wiper bladesCheck windshield wiper blades
Tire inflation needs special attentionTire inflation needs special attention
Under inflated tires are subject to
heat and pressure buildup, especially
when driving for extended distances
at higher speeds.
Hot Weather ChecksHot Weather Checks
The air conditioner, radiator coolant hoses, The air conditioner, radiator coolant hoses,
connections, and drive belts need special attention.connections, and drive belts need special attention.
due to the extra load placed on these
cooling systems.
Class Work In your driver’s education book, read
pages 222-224. WRITE the Lesson 3 Review questions
(1+2) on page 224. Save these to be turned in with your
test!
Don’t forget to take Section 5 Day 3 Quiz on Quia.com
Watch 9 minute Video: Driver Education Vol. II “Driving in Bad Weather”
THE END!