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Tennessee driving lesson · Interstate, Night & Weather Driving

Driving at night

A 3-minute lesson from the Tennessee 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
Interstate, Night & Weather Driving
Checkpoint questions
6
Source pages
88, 89, 113

At night you can see far less, and dark cars, animals and pedestrians in dark clothing blend into the road. Serious crashes are much more likely at night even though traffic is lighter, and more fatal crashes happen on Friday and Saturday nights than any other time.

Know the rule

Most of your reaction depends on vision, and depth perception, color recognition and side vision are all weaker after dark.

Handbook p. 88 ↗

Know the rule

The basic rule: NEVER OUTRUN YOUR HEADLIGHTS. Drive slowly enough that your stopping distance is shorter than your sight distance.

Handbook p. 88 ↗

To handle night traffic

  • Slow down and adjust to road and weather conditions
  • Look beyond your headlight beams for dark shapes
  • Glance left and right for the pavement edge and oncoming cars
  • Don't look straight into oncoming headlights
  • Use the right edge line as a steering guide past glare
  • Don't flash your high beams at other drivers
Handbook p. 88 ↗
200 feet

Headlights must let you see a person on the road at least this far ahead

Handbook p. 88 ↗

Glare recovery time

After oncoming headlights shrink your pupils, the time they need to readjust. You're virtually driving blind; it varies by person and is worse for older drivers.

Handbook p. 88 ↗

Know the rule

Keep glass clear: clean your headlights and windows inside and out at least once a month, and keep headlights properly aimed.

Handbook p. 88 ↗

Use low beams when:

  • Meeting or overtaking a vehicle within 500 feet
  • Driving in cities and towns
  • Going around curves or right turns, so you don't 'blast' oncoming cars
Handbook p. 88 ↗
Headlight range (low vs high beam)
Low beams vs. high beams: how far ahead each lights the road

Know the rule

When parked at night, never leave your headlights on, even briefly — they blind and confuse other drivers. On or along a highway, use your emergency and parking lights.

Handbook p. 89 ↗

Know the rule

Tennessee law requires low-beam headlights when driving through dense fog, heavy rain or snow during the day.

Handbook p. 89 ↗

Know the rule

Avoid dark sunglasses or tinted contact lenses at night — they cut the light you need to see.

Handbook p. 113 ↗

Put it into practice

On a dark two-lane road your headlights show about 200 feet ahead. If you're going so fast you couldn't stop within that distance, you're outrunning your lights. When an oncoming car appears, dim within 500 feet and watch the right edge line, not its headlights.

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.

Tennessee law requires headlights that let you see a person on the highway how far ahead?
  1. At least 200 feet
  2. At least 50 feet
  3. At least 500 feet
  4. At least 20 feet

Answer: At least 200 feet

The law requires headlights that let you clearly see a person on the highway at least 200 feet ahead.

Handbook p. 88 ↗
The basic rule for safe night driving stated in the handbook is:
  1. Always use your high beams
  2. Keep your eyes on the center line
  3. Never outrun your headlights
  4. Follow closer so you can see the taillights ahead

Answer: Never outrun your headlights

The basic rule for safe night driving is to never outrun your headlights, meaning you must be able to stop within your sight distance.

Handbook p. 88 ↗
Glare recovery time refers to:
  1. The time headlights take to reach full brightness
  2. The time before your wipers clear the windshield
  3. The time it takes to dim your high beams
  4. Time for eyes to readjust after glare

Answer: Time for eyes to readjust after glare

Glare recovery time is the interval needed for your pupils to readjust after glare from oncoming headlights passes.

Handbook p. 88 ↗
Why is night driving generally more dangerous than day driving on a per-mile basis?
  1. There is more traffic congestion at night
  2. Less visibility and more fatigue
  3. More trucks are on the road at night
  4. Drivers tend to speed more at night

Answer: Less visibility and more fatigue

Night driving is more dangerous mainly due to sharply reduced vision, and fatigue and impaired drivers are more likely to be on the road.

Handbook p. 85 ↗
You should avoid looking directly into oncoming headlights, as this can cause momentary blindness from the glare.
  1. True
  2. False

Answer: True

Looking directly into oncoming headlights can cause temporary blindness; watch the right edge of the road instead.

Handbook p. 88 ↗
It is safe to leave your headlights on while parked briefly at night, as long as you plan to return quickly.
  1. True
  2. False

Answer: False

Never leave your headlights on when parked, even briefly, as they can blind approaching drivers and confuse them about the road's position.

Handbook p. 88 ↗
Take the lesson checkpoint in the app

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