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Arizona driving lesson · Sharing the Road

Sharing the road with motorcycles

A 3-minute lesson from the Arizona 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
50, 51

Motorcyclists are more exposed to injury than car drivers. Most car/motorcycle crashes happen when a car turns in front of a motorcycle because the driver didn't see it or misjudged its distance and speed.

Know the rule

Most car/motorcycle crashes result from a car turning in front of a motorcycle, usually because the driver didn't see it or misjudged how close and fast it was.

Handbook p. 51 ↗

Know the rule

A motorcycle's small size makes it hard to spot and makes it look farther away and slower than it is. Its single headlight or taillight gives fewer cues for judging distance.

Handbook p. 51 ↗

Know the rule

Motorcyclists are less stable in rain and wind.

Handbook p. 51 ↗

Lane filtering

A motorcyclist passing a vehicle that is stopped in the same direction and lane as the motorcycle, when it can be done safely.

Handbook p. 51 ↗

Lane filtering is allowed only when:

  • The street has at least 2 adjacent lanes traveling in the same direction
  • The posted speed limit is 45 mph or less
  • The motorcycle travels no faster than 15 mph
Handbook p. 51 ↗

Know the rule

Riders shift within the lane to prepare for turns, avoid hazards like oil, potholes or debris, or improve visibility. Don't assume what the rider will do.

Handbook p. 51 ↗

Know the rule

Motorcycle turn signals don't shut off automatically, and riders may forget to cancel them. Know what the rider is doing before moving into its path.

Handbook p. 51 ↗

Know the rule

Motorcycles are allowed the full width of a lane. Never crowd into a lane with a motorcycle.

Handbook p. 51 ↗

Know the rule

After passing a motorcycle, don't return to your lane too soon — it can force the rider to swerve into traffic or off the road.

Handbook p. 51 ↗

Put it into practice

A motorcycle ahead has its right signal blinking but keeps going straight past two driveways. Its signal may simply not have canceled. Wait until you're sure what the rider is doing before pulling out.

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 most common cause of car/motorcycle crashes described in the handbook?
  1. A car turning in front of one
  2. A motorcycle following too closely
  3. A motorcycle running a red light
  4. A car braking too hard

Answer: A car turning in front of one

Most car/motorcycle crashes result from a car turning in front of a motorcycle, often because the driver didn't see it or misjudged its speed.

Handbook p. 50 ↗
Why can a motorcycle be harder to judge in traffic than a car?
  1. Motorcycles accelerate slower than cars
  2. Motorcycle lights are dimmer by law
  3. It looks closer and faster than it is
  4. Its small size and single light give fewer cues

Answer: Its small size and single light give fewer cues

A motorcycle's smaller size and single light source make it harder to judge its distance and speed.

Handbook p. 51 ↗
Under what conditions may a motorcyclist legally pass a stopped vehicle in the same lane and direction (lane filtering)?
  1. 2+ lanes, limit 55 mph or less, cycle 25 mph or less
  2. Any stopped traffic, cycle 15 mph or less
  3. 2+ lanes, limit 45 mph or less, cycle 15 mph or less
  4. 2+ lanes, limit 45 mph or less, cycle 25 mph or less

Answer: 2+ lanes, limit 45 mph or less, cycle 15 mph or less

Lane filtering is allowed only when the street has at least 2 adjacent lanes, the posted limit does not exceed 45 mph, and the motorcycle does not exceed 15 mph.

Handbook p. 51 ↗
Why might a motorcyclist shift position within their own lane?
  1. To signal they are about to stop
  2. To avoid oil, potholes or debris
  3. Because they must weave for balance
  4. To warn drivers behind them

Answer: To avoid oil, potholes or debris

Riders may shift within their lane to avoid hazards, prepare for a turn, or improve visibility, not necessarily to signal a turn.

Handbook p. 51 ↗
What should you know about motorcycle turn signals?
  1. They don't shut off automatically
  2. They shut off automatically like a car's
  3. They are required only at night
  4. They flash faster than car signals

Answer: They don't shut off automatically

Motorcycle turn signals do not automatically shut off, so a signal may be left on by mistake after a turn.

Handbook p. 51 ↗
Never crowd into the same lane as a motorcycle, even though it looks like there is room.
  1. True
  2. False

Answer: True

Motorcycles need the full width of their lane; crowding into it is dangerous.

Handbook p. 51 ↗
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