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West Virginia driving lesson · Driving on Interstates

Interstate speed, stopping and breakdowns

A 3-minute lesson from the West Virginia course. Read the rules and examples, follow the handbook page references, and check your understanding before you move on.

Read time
3 minutes
Course unit
Driving on Interstates
Checkpoint questions
6
Source pages
67, 69, 70

Interstate traffic works best when everyone moves at a steady speed in the right lane. Stopping is only for emergencies, and a breakdown needs to be made visible fast.

Know the rule

Slower traffic drives in the right-hand lane except when passing. Give trucks and buses entering the interstate extra time and space.

Handbook p. 67 ↗

Know the rule

Never drive faster than the legal limit, and keep a steady speed.

Handbook p. 69 ↗
55 mph

Don't drive slower than this on an interstate unless weather or road conditions are bad or a lower limit is posted

Handbook p. 69 ↗

Know the rule

Driving much slower than other traffic creates a hazard: others may be forced to change lanes abruptly.

Handbook p. 69 ↗

Know the rule

Shoulders are only for disabled vehicles. Don't use them to change drivers or read a map; do that at a rest area or after exiting.

Handbook p. 69 ↗

Know the rule

No parking is permitted on interstate shoulders; parked vehicles may be towed.

Handbook p. 69 ↗

Exit gore

The triangular area between the through lane and the exit ramp. Never stop there; a driver who missed the exit may cut across it and hit you.

Handbook p. 69 ↗

Know the rule

WV law (§17C-15-2) requires headlights on during adverse conditions. Keep extra following distance and a speed that lets you stop safely, and watch for stopped vehicles.

Handbook p. 69 ↗

If your vehicle breaks down:

  • Move as far off the road as possible
  • Turn on your four-way flashers
  • Get everyone out of the vehicle and well away from the road
  • Put a flare about one (1) vehicle length behind the vehicle
  • Put another flare about 300 feet back, both on the shoulder near the travel lane
Handbook p. 70 ↗
300 feet

Distance back for the second warning flare

Handbook p. 70 ↗

Know the rule

In very dense fog, it may be better to leave the interstate for slower roads. After a crash in heavy fog, get the vehicle as far off the road as possible; leaving it in the road invites more crashes.

Handbook p. 70 ↗

Put it into practice

Your tire goes flat on I-64 at dusk. Pull as far onto the shoulder as you can, turn on the flashers, move everyone away from the car, and set flares one car length and about 300 feet behind it.

Check your understanding

Read the question, decide on an answer, then open it to check the explanation. These are Roadwise study questions based on the source handbook.

What is the slowest you should generally drive on an interstate, absent bad weather or a posted lower limit?
  1. 55 mph
  2. 45 mph
  3. 65 mph
  4. 35 mph

Answer: 55 mph

You should not drive slower than 55 mph on an interstate unless weather or conditions require it.

Handbook p. 69 ↗
What are interstate shoulders reserved for?
  1. Disabled vehicles only
  2. Changing drivers on long trips
  3. Reading maps or directions
  4. Any non-emergency stop

Answer: Disabled vehicles only

Shoulders on interstates are to be used only for disabled vehicles, not for non-emergency purposes.

Handbook p. 69 ↗
What is the 'exit gore,' and what should you avoid doing there?
  1. The shoulder area past an exit; always stop there for breaks
  2. The area just past a toll booth; slow to a crawl there
  3. The triangle between through lane and exit ramp; don't stop there
  4. The paved area between two interstate lanes; use it to pass

Answer: The triangle between through lane and exit ramp; don't stop there

The exit gore is the triangular area between the through lane and exit ramp; stopping there risks being struck by a driver crossing it after missing the exit.

Handbook p. 69 ↗
If your vehicle becomes disabled on the interstate, where should you place a flare relative to your vehicle?
  1. Directly under the rear bumper only
  2. 50 feet in front of the vehicle
  3. In the middle of the travel lane
  4. About one vehicle length behind, and another about 300 feet back

Answer: About one vehicle length behind, and another about 300 feet back

Flares should be placed about one vehicle length behind the vehicle and another about 300 feet back, on the shoulder.

Handbook p. 70 ↗
If fog on the interstate becomes very dense, what does the handbook suggest?
  1. Turn on your high beams and keep your normal speed
  2. Leave the interstate and use slower roads
  3. Drive faster to clear the fog bank sooner
  4. Follow the taillights ahead closely

Answer: Leave the interstate and use slower roads

In very dense fog, it may be better to leave the interstate and use slower roads to reach your destination.

Handbook p. 70 ↗
Parking is permitted on interstate shoulders as long as your hazard lights are on.
  1. True
  2. False

Answer: False

No parking is permitted on interstate shoulders; parked vehicles may be towed.

Handbook p. 69 ↗
Take the lesson checkpoint in the app

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