roadwise.Open study app

New Mexico driving lesson · Sharing the Road

Large trucks, RVs & the No Zone

A 3-minute lesson from the New Mexico 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
Sharing the Road
Checkpoint questions
6
Source pages
30

Big rigs and RVs can't stop, turn or see the way a car can. Knowing their limits keeps you out of situations where the driver can't avoid you.

Stopping from 55 mph

Stopping from 55 mph
VehicleDistance
Average carAbout 400 feet
Large truckAlmost 800 feet
Handbook p. 30 ↗

Know the rule

Don't pull in front of a big rig and suddenly slow down or stop; the driver may not be able to stop in time.

Handbook p. 30 ↗

Know the rule

Big trucks and RVs need more room to turn and often swing wide to turn right. Check a truck's turn signals before passing; if it seems to be turning left, wait and check again, as it may be turning right.

Handbook p. 30 ↗

No Zone

A truck's or RV's blind spots: large areas the driver can't see despite sitting high with big mirrors. Don't drive in them.

Handbook p. 30 ↗
Vehicle blind spots (top-down view)
Outlined areas show a truck driver's blind spots

Know the rule

If you can't see the driver in the truck's side mirror, the driver can't see you.

Handbook p. 30 ↗

Avoid these mistakes around trucks and RVs:

  • Cutting in front of one in traffic to reach your exit or turn
  • Driving beside one: it may not be able to swerve around a hazard
  • Staying in the driver's blind spot after passing
  • Following too closely: the driver may not know you're there
Handbook p. 30 ↗

Know the rule

Always pass a large truck or RV on the left side, then move ahead of it.

Handbook p. 30 ↗

Know the rule

A big truck or RV may look like it's going more slowly than it really is.

Handbook p. 30 ↗

Put it into practice

A semi ahead has its right signal on and is drifting left at an intersection. It's likely swinging wide to turn right. Don't squeeze into the gap on its right; wait for it to finish the turn.

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.

About how far does a car going 55 mph take to stop, compared to a large truck at the same speed?
  1. They take about the same distance
  2. A truck always stops faster due to its weight
  3. About 400 ft for a car, 800 ft for a truck
  4. A car takes about 800 feet; a truck takes about 400 feet

Answer: About 400 ft for a car, 800 ft for a truck

A car going 55 mph can stop in about 400 feet, but a large truck could take almost 800 feet.

Handbook p. 30 ↗
How can you tell if you're in a trucker's blind spot?
  1. You can see the truck's rear lights
  2. You're driving faster than the truck
  3. You can't see the driver in their side mirror
  4. You're within one car length of the truck

Answer: You can't see the driver in their side mirror

In general, if you can't see the driver in the side mirror, the driver can't see you.

Handbook p. 30 ↗
On which side should you always pass a large truck or RV?
  1. On the right, if it is turning left
  2. The left side
  3. The right side
  4. Either side, whichever is open

Answer: The left side

Always pass a large truck or RV on the left side, and move ahead of it after passing.

Handbook p. 30 ↗
Why shouldn't you cut in front of a truck in traffic to reach your exit?
  1. The truck may not be able to stop in time
  2. Trucks must keep that space empty by law
  3. It's only illegal on interstate highways
  4. It makes the truck's brakes overheat

Answer: The truck may not be able to stop in time

Cutting into the open space in front of a truck is dangerous; trucks take much longer to stop than cars.

Handbook p. 30 ↗
Why do big trucks often swing wide to make a right turn?
  1. To let cars pass them on the right
  2. They need more room to make turns
  3. To stay out of the bike lane
  4. They are avoiding their own blind spot

Answer: They need more room to make turns

Big trucks and RVs need more room to make turns and often swing wide to make a right turn.

Handbook p. 30 ↗
It's safe to drive alongside a large truck for an extended period, as long as you keep your speed steady.
  1. True
  2. False

Answer: False

Don't drive beside a large truck or RV — they may not be able to swerve around a hazard without hitting you.

Handbook p. 30 ↗
Take the lesson checkpoint in the app

More in Sharing the Road