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Web Traffic School
SECTION 3.5 Review: Your Vehicle in the Urban Environment
Safety Equipment: Vehicular Lighting

Headlights

Drivers should use their headlights at night and during bad weather, or whenever visibility is poor. Your headlights will help other drivers see you and increase your ability to see roadway hazards.

Every car on the road is required to be equipped with two headlights – one on each side of the front of the vehicle, and two tail lights. Vintage vehicles from before January 1, 1970 are exempted from these requirements.

Legally, you need to use your headlights from a half hour after sunset until a half hour before sunrise and anytime when you cannot see 1000 feet ahead. Using your headlights is advised whenever you are driving in fog, rain, or snow.

  • Use high beams in open country at night. Change to low beams at least 500 feet before any oncoming vehicles and 300 feet before any vehicle you are following.
  • You can flash the headlights to warn a driver ahead you intend to pass.
  • Keep the headlights clean!
  • You should not drive with just the parking lights on.

If your car has multiple headlight settings (for instance, high and low beams):

  • The high beams should have a range of at least 350 feet.
  • The low beams should have intensity of at least 100 feet ahead.
Tail Lights

Your red tail-lights should go on whenever you turn on your parking lights or your headlights. Your tail lights should be visible 500 feet to the rear of your vehicle, if your car was made in 1969 or later.

Brake Lights

Your brake lights should activate whenever you step on your vehicle’s brake pedal and be visible from a distance of 300 feet to the rear during normal sunlight and at night.

Reverse Lights

Your reverse lights, or "back up" lights, should go on whenever you shift into reverse. Your reverse lights should project a white or amber light illuminating the highway.

Turn Signals

Turn signals, or directional signals, inform other drivers that you plan to turn or move to the right or left. Your turn signals should be plainly visible and understandable in normal sunlight and at nighttime from a distance of at least 500 feet to the front and rear of the vehicle.

Turn signals should project a flashing white or amber light to the front and a flashing red or amber light visible to the rear of the vehicle.

Emergency Flashers

Warning flashers, or "Hazard Lights," tell other drivers that a vehicle on or off the road ahead has stopped, is disabled somehow, or is moving very slowly.

All of your lighting equipment should be properly maintained and in good working order.

Safety Equipment: Brakes

When you step on your car’s brake pedal you must be able to stop or slow down the car.

  • Your brakes should be well maintained and capable of stopping your vehicle in a distance of 25 feet or less from an initial speed of 20 miles per hour.
  • The brakes should be kept in good working order and adjusted to operate equally on the front and rear wheels on opposite sides of the vehicle.
  • Your brakes need to be able to stop and hold your vehicle on any slope or grade on which you drive it.

Parking Brakes

Your parking brakes, also known as a hand brake or emergency brakes, are responsible for locking your rear wheels, when your vehicle is stopped and parked. Your parking brakes are separate from your foot brake and should not be confused.

The law on parking brakes requires that they be:

  • Held in place by only mechanical means.
  • Able to hold the vehicle on any grade on which it is operated, except for the special circumstances of snow, ice, or loose material which would cause the whole car to slide.
  • Used exclusively for the operation of the parking brake or the combination of the parking brake and emergency stopping system.

Safety Equipment: Windshields and Mirrors

Passenger vehicles need to be equipped with an adequate windshield and two self-operating windshield wipers, one mounted on the right side and one mounted on the left side of the windshield. Some vehicles are designed with single wiper blades under special Federal standards.

  • The windshields and windows of the automobile should be manufactured with safety glazing. It is against the law to replace any safety glazing material used in the windshields and mirrors.
  • Windshield wipers should be activated during fog, snow, rain, or other adverse conditions and should be capable of effectively clearing the windshield while the vehicle is in motion.
  • Windshield wipers should be maintained in good operating condition and provide clear vision through the windshield for the driver.
  • It is against the law to drive a motor vehicle with any object or material placed, applied or installed inside or outside the vehicle which obstructs or reduces the driver's clear view through the windshield or side windows.
  • Signs or stickers should be displayed only in a 6-inch square in the lower corner of the windshield furthest from the driver.
  • Sun screening devices, such as a frame, a rigid material with temporary fasteners, or a flexible roller shade, should be readily removable from the window area.
  • Rear and side view mirrors allow drivers to see cars behind them and to the sides of their car.
  • Your rear view mirror should reflect to you a view of the highway for a distance of at least 200 feet to the rear of the vehicle.
  • If the rear view is obstructed, the vehicle must be equipped with mirrors on both the left and right hand sides of the vehicle. The mirrors should provide the driver a view of the highway for a distance of at least 200 feet to the rear of the vehicle on both the left and right hand sides.
  • It is illegal to operate any motor vehicle when the windshield or rear window is in such defective condition as to impair the driver’s vision either to the front or rear.

 Safety Equipment: Horn

Use your horn - People cannot see you unless they are looking your way. Your horn can get their attention. Use it whenever it will help prevent an accident. If there is no immediate danger, a light tap on the horn should be all you need. Give your horn a light tap :

• when a person on foot or on a bike appears to be moving into your lane of travel

• when you are passing a driver who starts to turn into your lane

• when a driver is not paying attention or may have trouble seeing you

• when coming to a place where you cannot see what is ahead — like a steep hill, a sharp curve or exiting a narrow alley

If there is danger, do not be afraid to sound a SHARP BLAST on your horn. Do this:

• when a child or older person is about to walk, run or ride into the street

• when another vehicle is in danger of hitting you

• when you have lost control of your vehicle and are moving towards someone

When not to use your horn - There are several occasions when you should not use your horn. They include:

• encouraging someone to drive faster or get out of the way

• greeting a friend

• around blind pedestrians

 Safety Equipment: Tires

Your tires are designed to provide you with as much control of the vehicle as possible:

  • Their general construction, tread depth, and inflation all are important to vehicle control. Vehicle control depends on traction. The greater more traction you have, the less chance that your tires will skid.
  • Your tires should not have worn spots, cuts, or blisters on their walls, or metal or nails stuck in them.
  • Tires inflated to the recommended pressure will improve vehicle control. Adjust your tire pressure according the recommendations of the manufacturer.
  • Tires do not usually wear at the same rate. To even out the wear tires should be rotated. Their positions on the car should be switched from front to rear and in some cases left to right. It is generally recommended that tires be rotated every 4000 to 6000 miles.
  • Tread depth can be critical in certain situations. The minimum legal tread depth is 2/32 inch (1.6 mm) at all points, in all of the major grooves, of the tire.
  • In Nevada Studded snow tires may only be used between October 1 and April 30.
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