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Iowa driving lesson · Right-of-Way, School Buses & Parking

Move Over law and Steer It-Clear It

A 3-minute lesson from the Iowa 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
Right-of-Way, School Buses & Parking
Checkpoint questions
6
Source pages
22

Stopped vehicles with flashing lights mean people are working or stranded feet from traffic. Iowa's Move Over or Slow Down Law gives them room. And after a minor crash, Steer It-Clear It says to get your own vehicle out of the traffic lanes.

Move over when approaching any of these stopped with flashing lights on:

  • Emergency vehicles
  • Tow and recovery vehicles
  • Maintenance and construction vehicles
  • Solid waste or recycling collection vehicles
  • Any motor vehicle, including a passenger car, that is continually displaying hazard lights
Handbook p. 22 ↗

Know the rule

Change lanes away from the stopped vehicle. If a lane change is not possible, prohibited by law, or unsafe, slow down and be prepared to stop.

Handbook p. 22 ↗

Know the rule

No specific speed is set; your speed must be reasonable and proper for the existing conditions.

Handbook p. 22 ↗
1 year

Possible license suspension for violating the Move Over or Slow Down Law

Handbook p. 22 ↗

Know the rule

Steer It-Clear It: after a crash with no injuries, Iowa law requires you to move your vehicle out of the driving lanes if it is operable and can be safely moved.

Handbook p. 22 ↗
2.8%

Increase in the risk of a secondary crash for every minute an interstate lane is blocked

Handbook p. 22 ↗

Why clearing lanes matters (Figure 2.15):

  • There are approximately 55,000 crashes in Iowa each year
  • Every minute a lane is blocked equals 4 minutes of delay for traffic
  • At around 30 minutes, the chance of a secondary crash is very high
Handbook p. 22 ↗
Steer It, Clear It law
Steer It-Clear It: move crashed vehicles to the shoulder

Put it into practice

A car sits on the interstate shoulder with its hazards blinking. It isn't an emergency vehicle, but Move Over still applies: signal and change lanes. If traffic beside you blocks the lane change, slow down and be ready to stop.

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.

A tow truck is stopped on the shoulder with flashing lights. What does Iowa's Move Over law require if a lane change is safe?
  1. Flash your headlights and keep your lane
  2. Come to a complete stop in your lane
  3. Change lanes away from it
  4. Pass closely without changing lanes

Answer: Change lanes away from it

The Move Over law requires changing lanes when approaching a stopped vehicle like a tow truck with flashing lights, if it's safe to do so.

Handbook p. 22 ↗
Violating the Move Over or Slow Down law can lead to what penalty?
  1. License suspension for up to 180 days
  2. License suspension for up to 30 days
  3. A $200 fine only
  4. License suspension for up to one year

Answer: License suspension for up to one year

Violating the Move Over or Slow Down law may result in license suspension for up to one year.

Handbook p. 22 ↗
After a minor crash with no injuries, Iowa's Steer It, Clear It law requires what, if the vehicle is drivable?
  1. Move it out of the travel lanes
  2. Leave it exactly where it stopped
  3. Wait for police before moving it
  4. Leave it in place with hazards on

Answer: Move it out of the travel lanes

Steer It, Clear It requires moving an operable vehicle out of traffic lanes after a crash with no injuries, if it can be done safely.

Handbook p. 22 ↗
The Move Over law covers stopped vehicles displaying flashing lights, including which of these?
  1. A stopped recycling truck
  2. Any parked car with headlights on
  3. A car waiting at a red light
  4. A school bus dropping off passengers

Answer: A stopped recycling truck

The law covers stopped emergency, tow, recovery, maintenance, construction, solid waste, or recycling collection vehicles with flashing lights.

Handbook p. 22 ↗
If changing lanes for a stopped vehicle with flashing lights isn't safe, what must you do instead?
  1. Maintain your current speed
  2. Slow down and be prepared to stop
  3. Speed up to pass quickly
  4. Stop in your lane until it leaves

Answer: Slow down and be prepared to stop

If a lane change isn't possible, prohibited, or unsafe, you must slow down and be prepared to stop.

Handbook p. 22 ↗
For every minute a lane of interstate traffic stays blocked after a crash, the risk of a secondary crash rises by roughly 28 percent.
  1. True
  2. False

Answer: False

False. The manual says the risk of a secondary crash increases by roughly 2.8 percent for every minute an interstate lane is blocked.

Handbook p. 22 ↗
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