11.1 Signaling, Lane Use & Highway Driving

Key Takeaways

  • Massachusetts drivers must signal when changing lanes, turning, pulling away from or toward a curb, and entering or exiting an expressway, and must use hand signals if the electric signals fail.

  • Before turning, merging or changing lanes, a Massachusetts driver checks the mirrors and blind spot, signals, and then moves.

  • On Massachusetts roads with two or more lanes in one direction, drivers use the right lane except to pass, to turn left or when the right lane is blocked.

  • Massachusetts drivers must signal a highway exit at least 500 feet before the exit ramp, and must never back up on a highway after missing an exit.

  • On long Massachusetts highway trips the Manual advises stopping to stretch every two hours or every 100 miles.

Last updated: October 2026

"You are expected to drive straight ahead, unless you show otherwise." That sentence from the Manual explains why signaling is required for every move in traffic. This section also covers how to use lanes and how to drive on Massachusetts highways.

Signaling

You must use signals whatever vehicle you drive, every time you stop or make a move in traffic. If your electric signals don't work, use the three hand signals (left turn, right turn, slow or stop), made through the driver's side window. You must know them to pass the road test. Bicyclists may signal with either arm.

When a signal is required

  • changing lanes;
  • turning at an intersection or into a driveway;
  • pulling away from a curb;
  • pulling over to the side of the road;
  • entering or exiting an expressway or freeway.

Turn the signal off after the move.

The three-step routine

Any time you turn, merge, join traffic from a stop or change lanes:

  1. Check your mirrors for traffic behind you, and check the blind spot on the side you are moving toward.
  2. Signal your intent.
  3. Make your move.

On the highway the Manual shortens this to "(1) look, (2) signal, (3) move."

Using Lanes

Use lanes as signs and markings define them, including special turn lanes, restricted lanes for buses, carpools and bicycles, and breakdown lanes on highway shoulders.

On roads with two or more lanes in your direction, use the right lane unless:

  • you are passing;
  • you are turning left;
  • the right lane is blocked.

General rules:

  • Never change lanes in the middle of an intersection. It is illegal and dangerous.
  • Breakdown lanes are generally not for travel or passing. Some highways allow travel in them during specific posted hours, and that use is very restricted.
  • On a curve where you can't see ahead, keep right and slow down.
  • Restricted lanes (HOV, bus, bicycle) may not be used except when preparing for a turn.

Motorcycle lane rules

  • Don't ride along the pavement lines between lanes.
  • Ride no more than two abreast.
  • Stay off highways and expressways unless the motorcycle can safely reach posted minimum speeds.

Highway Driving

A divided highway has separate roadways for opposite directions, often with several lanes each. Highway limits are usually 45 to 65 mph. Controlled-access highways, also called expressways or freeways, have no signals or intersections; you enter and exit by ramps at interchanges. Massachusetts examples are I-90, I-495 and Route 128.

Entering and exiting

SituationRule
Lane choiceGet into the proper lane well ahead of the entrance or exit
EnteringYield to drivers already on the highway, and speed up to match their speed
Missed exitDon't stop and never back up. Take the next exit and follow signs back
ExitingSignal at least 500 feet before the exit ramp, watch for traffic backed up near ramps, and slow to the posted ramp speed on the ramp
Breakdown-lane travel highwaysWhen exiting, look right and check your right blind spot, because traffic may be moving in the breakdown lane

On the highway

  • Make sure your vehicle can operate safely at highway speeds.
  • Stay right; use the left lane for passing. With three or more lanes: far right for slower driving, middle for faster driving, far left for passing.
  • Drive in the middle of your lane.
  • Use the mirrors, check blind spots and signal for every lane change: look, signal, move.
  • Don't linger in another driver's blind spot. If you are in one, drive through it safely and promptly.
  • Large vehicles have big blind spots on the right, left, front and rear. Don't follow a truck or bus closely, and stay out of the space around it.
  • Watch for vehicles entering and for vehicles or people in the breakdown lane.
  • Don't weave in and out of traffic.
  • Watch for construction signs, crews and reduced-speed or lane-change signs.
  • Avoid "highway hypnosis." If you feel tired after long driving, leave at the next exit, rest stop or service area.
  • On long trips, stop and stretch every two hours or every 100 miles.

Breakdowns on the highway

Move the vehicle to the breakdown lane or shoulder, as far from traffic as possible, and stay in the vehicle. Don't stand near the travel lane or in the breakdown lane; many people have been killed that way. Section 14.3 covers warning devices and when to leave the vehicle.

MassDOT's 511 service gives real-time traffic and construction information.

Highway Lesson Checklist

SkillCoaching focus
Lane changesThe student says "mirror, blind spot, signal, move" aloud, then checks again before steering
MergingUse the full acceleration lane to match speed; yield to highway traffic but don't stop unless forced to
ExitingSignal at least 500 feet ahead; slow on the ramp, not on the highway
Missed exitsRehearse taking the next exit calmly, so the student never thinks of backing up
Blind spots near trucksPass steadily and don't linger beside a truck's cab or trailer

Tip

Two numbers are easy to confuse: signal at least 100 feet before a turn on ordinary roads, and 500 feet before a turn or exit on a highway (section 11.2).

Test Your Knowledge

A driver misses the intended exit on an expressway. What does the Manual say to do?

A

Stop in the breakdown lane and back up carefully to the missed ramp

B

Take the next exit and follow signs back

C

U-turn at the next median opening

D

Use the hazard lights, slow to 20 mph and reverse along the shoulder

Test Your Knowledge

How far before an exit ramp must a driver signal on a highway?

A

At least 1,000 feet

B

At least 100 feet

C

At least 200 feet

D

At least 500 feet

Test Your Knowledge

On an expressway with three lanes in your direction, how does the Manual say to use them?

A

Middle lane only, with both outer lanes kept clear for emergency vehicles

B

Far left for slower driving so faster traffic can pass on the right

C

Far right for slower driving, middle for faster driving and far left for passing

D

Any lane, as long as you drive at the speed limit

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