Idaho: Emergency vehicles and work zones
Moving over for emergency vehicles, work zones, flaggers, and what to do when you are stopped by law enforcement. Split into 2 shorter tests so you're not stuck in one long quiz.
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Emergency vehicles and work zones — Part 1
Questions in this part include: “On which vehicles is the slow moving vehicle sign primarily used?”
StartEmergency vehicles and work zones — Part 2
Questions in this part include: “You must stop for emergency or police vehicles that are sounding a siren or flashing which lights?”
StartAll 47 Emergency vehicles and work zones questions with answers
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Which hazards does the manual tell you to be aware of when traveling through work zones?
- Steep hills, dense fog, deep snow, and black ice
- Low bridges, railroad crossings, school buses, and tolls
- Roundabouts, one-way streets, bike lanes, and median strips
- Uneven pavement, narrow lanes, heavy equipment, and gravel
Show answer
Correct answer: Uneven pavement, narrow lanes, heavy equipment, and gravel
The manual lists uneven pavement, narrow lanes, heavy equipment, and gravel as work zone hazards.
Source: Idaho Driver's Handbook (July 2026), page 46 · Open this page in the manual (Manual page 46)
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What does the manual say to do about barriers and signs on a road that is closed to traffic?
- Drive around them slowly if no workers are in sight
- Move them aside only when you are driving a large vehicle
- Do not go around or move them to cross over the road
- Go around them only during daylight hours
Show answer
Correct answer: Do not go around or move them to cross over the road
Barriers and signs on a closed road must not be gone around or moved to cross over the road.
Source: Idaho Driver's Handbook (July 2026), page 46 · Open this page in the manual (Manual page 46)
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An orange diamond-shaped sign shows two parallel arrows that curve to one side. What should you do?
- Move to the opposite lane because your lane will close
- Stay in your lane as all lanes shift according to the sign
- Prepare to stop because a flagger is ahead
- Slow down and approach a slow moving vehicle with caution
Show answer
Correct answer: Stay in your lane as all lanes shift according to the sign
On a Lane Shift sign, all lanes will shift according to the sign and you stay in your lane as it shifts slightly.
Source: Idaho Driver's Handbook (July 2026), page 46 · Open this page in the manual (Manual page 46)
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An orange diamond-shaped sign shows a figure holding a flag. What should you do?
- Stop at once and wait until the road work crew has left
- Keep your speed and change lanes before the road work
- Yield to workers crossing the road ahead and then speed up
- Slow down and be prepared to stop for road work ahead
Show answer
Correct answer: Slow down and be prepared to stop for road work ahead
The Be Prepared to Stop sign means to slow down and be prepared to stop for road work ahead.
Source: Idaho Driver's Handbook (July 2026), page 47 · Open this page in the manual (Manual page 47)
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What should you do when you see a slow moving vehicle sign on the road ahead?
- Slow down and approach the vehicle with caution
- Pass the vehicle immediately before it slows traffic
- Follow closely behind it to save fuel
- Stop and wait until it leaves the road
Show answer
Correct answer: Slow down and approach the vehicle with caution
A slow moving vehicle sign means you should slow down and approach the vehicle with caution.
Source: Idaho Driver's Handbook (July 2026), page 47 · Open this page in the manual (Manual page 47)
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On which vehicles is the slow moving vehicle sign primarily used?
- Large trucks hauling oversized loads on highways
- Passenger cars and trailers traveling in work zones
- Off road vehicles such as farm and construction equipment
- Emergency vehicles on their way to a crash scene
Show answer
Correct answer: Off road vehicles such as farm and construction equipment
The slow moving vehicle sign is primarily used on off road vehicles such as farm and construction equipment.
Source: Idaho Driver's Handbook (July 2026), page 47 · Open this page in the manual (Manual page 47)
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What does a "Road Closed" sign in a work zone mean?
- The work zone can be entered by anyone who drives slowly
- The work zone cannot be entered, except by authorized personnel
- The work zone can be entered only after stopping to check for workers
- The work zone can be entered only by drivers who have lights on
Show answer
Correct answer: The work zone cannot be entered, except by authorized personnel
A Road Closed sign means the work zone cannot be entered except by authorized personnel.
Source: Idaho Driver's Handbook (July 2026), page 47 · Open this page in the manual (Manual page 47)
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Under a "Road Closed To Thru Traffic" sign, who may use the work zone?
- Any vehicle, as long as it does not stop within the work zone
- Only authorized personnel and emergency vehicles
- Any driver who has no other route to the destination
- Local traffic that has a reason to stop within the work zone
Show answer
Correct answer: Local traffic that has a reason to stop within the work zone
Such signs mean the work zone is open to local residential or commercial traffic, but only traffic with a reason to stop within the work zone.
Source: Idaho Driver's Handbook (July 2026), page 47 · Open this page in the manual (Manual page 47)
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When closure signs are properly placed, what is prohibited?
- Continuous trips through a work zone
- Stopping within a work zone for any reason
- Driving through a work zone at night
- Driving through a work zone in rain or snow
Show answer
Correct answer: Continuous trips through a work zone
When closure signs are properly placed, continuous trips through a work zone are prohibited.
Source: Idaho Driver's Handbook (July 2026), page 47 · Open this page in the manual (Manual page 47)
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What happens to fines for speeding in work zones where the signage indicates?
- They are waived when no workers are present
- They are the same as on any other road
- They are increased
- They are lowered when traffic is heavy
Show answer
Correct answer: They are increased
Fines for speeding are increased in work zones where the signage indicates.
Source: Idaho Driver's Handbook (July 2026), page 48 · Open this page in the manual (Manual page 48)
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How close to traffic can highway workers in a work zone be?
- At least one full traffic lane away
- Just inches away
- Safely behind a barrier at all times
- About 50 feet from the traffic lane
Show answer
Correct answer: Just inches away
Workers in a work zone are just inches away from traffic, working both night and day.
Source: Idaho Driver's Handbook (July 2026), page 48 · Open this page in the manual (Manual page 48)
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What does the manual say about following distance in a work zone?
- Follow closely so that traffic moves through the work zone faster
- Match the following distance of the car ahead, however close it is
- Leave extra space only when workers are visible beside the road
- Do not follow too closely; leave plenty of space between you and the car ahead
Show answer
Correct answer: Do not follow too closely; leave plenty of space between you and the car ahead
In a work zone you should not follow too closely and should leave plenty of space between you and the car ahead.
Source: Idaho Driver's Handbook (July 2026), page 48 · Open this page in the manual (Manual page 48)
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What does the manual suggest you do to plan ahead for a work zone?
- Allow a few extra minutes and minimize distractions
- Drive faster before the zone to make up the time
- Follow a truck closely to learn the lane changes
- Turn up the car stereo to stay alert in slow traffic
Show answer
Correct answer: Allow a few extra minutes and minimize distractions
The manual says to allow for a few extra minutes and to minimize distractions such as a cell phone and the car stereo.
Source: Idaho Driver's Handbook (July 2026), page 48 · Open this page in the manual (Manual page 48)
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Which of these is named as a cause of crashes in work zones?
- Driving with headlights on
- Driving below the speed limit
- Improper lane changes
- Leaving too much space ahead
Show answer
Correct answer: Improper lane changes
Speeding, inattentive driving, failing to yield the right-of-way, and improper lane changes contribute to work zone crashes.
Source: Idaho Driver's Handbook (July 2026), page 48 · Open this page in the manual (Manual page 48)
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Which colors are permanent barricades?
- Red and white
- Orange and white
- Blue and white
- Green and white
Show answer
Correct answer: Red and white
The manual says barricades are red and white when permanent.
Source: Idaho Driver's Handbook (July 2026), page 54 · Open this page in the manual (Manual page 54)
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Which colors are temporary barricades?
- Red and white
- Blue and white
- Orange and white
- Green and white
Show answer
Correct answer: Orange and white
The manual says barricades are orange and white when temporary.
Source: Idaho Driver's Handbook (July 2026), page 54 · Open this page in the manual (Manual page 54)
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How do the instructions of red and white barricades compare with those of orange and white barricades?
- They are the same
- Red barricades mean the road is closed, orange ones mean slow down
- Orange barricades must be obeyed, red ones are only advice
- Red barricades apply at night and orange ones by day
Show answer
Correct answer: They are the same
The manual says that even though barricades can be of different colors, the instructions they give to drivers are the same.
Source: Idaho Driver's Handbook (July 2026), page 54 · Open this page in the manual (Manual page 54)
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How many types of barricades are placed in the road when a lane or road is closed to traffic?
- Two
- Four
- Three
- Five
Show answer
Correct answer: Three
The manual says one of three types of barricades will be placed in the road as a warning to drivers.
Source: Idaho Driver's Handbook (July 2026), page 54 · Open this page in the manual (Manual page 54)
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A barricade has a V-shaped pattern. What does it mean?
- Traffic must pass the barricade on the left side
- The road is closed and traffic can proceed no further
- Traffic must pass the barricade on the right side
- Only one lane is closed and traffic may merge
Show answer
Correct answer: The road is closed and traffic can proceed no further
The V-shaped pattern means the road is closed and traffic can proceed no further.
Source: Idaho Driver's Handbook (July 2026), page 54 · Open this page in the manual (Manual page 54)
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The lines on a barricade angle down to the left. What must traffic do?
- Pass the barricade on the right side
- Stop because the road is closed
- Turn around and use another route
- Pass the barricade on the left side
Show answer
Correct answer: Pass the barricade on the left side
Lines angling down to the left indicate that traffic must pass the barricade on the left side.
Source: Idaho Driver's Handbook (July 2026), page 54 · Open this page in the manual (Manual page 54)
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The lines on a barricade angle down to the right. What must traffic do?
- Pass the barricade on the left side
- Stop because the road is closed
- Pass the barricade on the right side
- Wait for a flagger to wave you through
Show answer
Correct answer: Pass the barricade on the right side
Lines angling down to the right indicate that traffic must pass the barricade on the right side.
Source: Idaho Driver's Handbook (July 2026), page 54 · Open this page in the manual (Manual page 54)
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What may barricades have on them, especially at night?
- Flashing lights
- Reflective flags that wave in the wind
- Painted speed limits
- Printed detour maps
Show answer
Correct answer: Flashing lights
The manual says barricades may have flashing lights on them, especially at night.
Source: Idaho Driver's Handbook (July 2026), page 54 · Open this page in the manual (Manual page 54)
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What can result from violating a speed limit in a designated work zone?
- A written warning only
- Mandatory towing of your vehicle
- A required retest of your license
- An enhanced, fixed penalty
Show answer
Correct answer: An enhanced, fixed penalty
You must observe posted speed limits in designated work zones; violating a work zone speed limit can result in an enhanced, fixed penalty.
Source: Idaho Driver's Handbook (July 2026), page 69 · Open this page in the manual (Manual page 69)
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When does Idaho law require you to stop for a police officer?
- Only if you have broken a traffic law
- Upon the request of any police officer
- Only when you are inside city limits
- Only when the officer's car has a siren on
Show answer
Correct answer: Upon the request of any police officer
Idaho law requires you to stop upon the request of any police officer.
Source: Idaho Driver's Handbook (July 2026), page 70 · Open this page in the manual (Manual page 70)
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You must stop for emergency or police vehicles that are sounding a siren or flashing which lights?
- Amber or yellow lights
- Green or white lights
- White headlights only
- Red or blue lights
Show answer
Correct answer: Red or blue lights
Idaho law requires you to stop for emergency or police vehicles sounding a siren or flashing red or blue lights.
Source: Idaho Driver's Handbook (July 2026), page 70 · Open this page in the manual (Manual page 70)
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An emergency vehicle sounding a siren is approaching. Where should you pull over and stop?
- At the nearest right edge or curb, clear of any intersection
- At the nearest left edge, clear of any intersection
- In the middle of the nearest intersection
- In the left lane, keeping up with traffic
Show answer
Correct answer: At the nearest right edge or curb, clear of any intersection
Pull over to the nearest edge or curb on the right side of the highway and clear of any intersection, and remain stopped.
Source: Idaho Driver's Handbook (July 2026), page 70 · Open this page in the manual (Manual page 70)
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After pulling over for an emergency vehicle, how long must you remain stopped?
- For at least 10 seconds after the siren starts
- Until you can no longer hear the siren
- Until it has passed or an officer says to go
- Until the vehicle stops somewhere ahead
Show answer
Correct answer: Until it has passed or an officer says to go
You remain stopped until the emergency vehicle has passed, or the police officer has indicated you may proceed.
Source: Idaho Driver's Handbook (July 2026), page 70 · Open this page in the manual (Manual page 70)
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In a work zone, what must you yield to?
- Vehicles or pedestrians working on the project
- Only workers who are standing in the roadway
- Only flaggers and law enforcement vehicles
- Only equipment with flashing lights
Show answer
Correct answer: Vehicles or pedestrians working on the project
In work zones you must yield to all vehicles or pedestrians working on a highway construction project.
Source: Idaho Driver's Handbook (July 2026), page 76 · Open this page in the manual (Manual page 76)
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An emergency or police vehicle sounding a siren or flashing red or blue lights is approaching you. What must you do?
- Pull to the nearest curb or right edge and stop
- Slow down and keep driving in your own lane until it passes
- Pull to the left edge of the roadway and stop
- Speed up to clear the road ahead of the vehicle
Show answer
Correct answer: Pull to the nearest curb or right edge and stop
You must pull to the nearest curb or the edge on the right side of the roadway and stop.
Source: Idaho Driver's Handbook (July 2026), page 95 · Open this page in the manual (Manual page 95)
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After you pull over for an approaching emergency vehicle, how long must you remain stopped?
- Until you can no longer hear its siren
- Until the traffic behind you starts moving
- Until the emergency vehicle has passed ahead of you
- For at least one minute after its lights go out
Show answer
Correct answer: Until the emergency vehicle has passed ahead of you
The manual says to remain stopped until the emergency vehicle has passed ahead of you.
Source: Idaho Driver's Handbook (July 2026), page 95 · Open this page in the manual (Manual page 95)
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You are approaching a stopped emergency or police vehicle with its lights flashing. What are you required to do?
- Come to a complete stop and wait until it leaves the scene
- Reduce your speed below the posted limit and proceed with caution
- Keep your speed and sound your horn as you pass by
- Slow to exactly the posted speed limit but no lower
Show answer
Correct answer: Reduce your speed below the posted limit and proceed with caution
You are required to immediately reduce your speed below the posted limit and proceed with caution.
Source: Idaho Driver's Handbook (July 2026), page 95 · Open this page in the manual (Manual page 95)
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A tow truck or incident response vehicle is stopped ahead with its lights flashing. What are you required to do as you approach it?
- Stop and wait for a signal from the driver to go
- Maintain the posted speed limit if your lane is clear
- Pass quickly to clear the area as soon as possible
- Slow below the posted limit and proceed with caution
Show answer
Correct answer: Slow below the posted limit and proceed with caution
The requirement to slow below the posted limit applies to a tow truck or incident response vehicle as well as to emergency and police vehicles.
Source: Idaho Driver's Handbook (July 2026), page 95 · Open this page in the manual (Manual page 95)
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You approach a stopped emergency vehicle with lights flashing on a road with two or more lanes in your direction. What else must you do?
- Stay in the lane next to it and come to a stop
- Move into the lane right beside it in order to pass
- Move to a lane not adjacent to it as soon as safely possible
- Change lanes only if a police officer directs you to
Show answer
Correct answer: Move to a lane not adjacent to it as soon as safely possible
On a road with two or more lanes in your direction, you must also move to a lane not adjacent to the emergency vehicle, as soon as possible if safe.
Source: Idaho Driver's Handbook (July 2026), page 95 · Open this page in the manual (Manual page 95)
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Why should you use extra caution when you encounter snow removal equipment?
- Snowplows are required to stop at every intersection along the entire road they clear
- Their blades force snow up and off the road, reducing visibility for drivers following too closely
- Snowplows cannot be seen from behind during a storm because they carry no warning lights
- Snowplow drivers may ask the drivers who are following them to pass them on the right
Show answer
Correct answer: Their blades force snow up and off the road, reducing visibility for drivers following too closely
Snowplow blades force snow up and off the road, potentially causing blizzard-like conditions and reduced visibility for drivers following too closely.
Source: Idaho Driver's Handbook (July 2026), page 109 · Open this page in the manual (Manual page 109)
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How far behind a snowplow truck should you stay?
- Two car lengths for every 10 miles per hour you drive
- One car length for every 10 miles per hour you drive
- Four car lengths no matter how fast you drive
- Two car lengths for every 20 miles per hour you drive
Show answer
Correct answer: Two car lengths for every 10 miles per hour you drive
The handbook says to remain two car lengths behind snowplow trucks for every 10 miles per hour you drive.
Source: Idaho Driver's Handbook (July 2026), page 110 · Open this page in the manual (Manual page 110)
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What does the handbook say about passing a snowplow?
- Pass it as soon as the lane ahead looks clear
- Pass it whenever you are in a hurry to get ahead
- Do not pass it unless it is absolutely necessary
- Pass it only when its blade is raised
Show answer
Correct answer: Do not pass it unless it is absolutely necessary
Drivers should not pass a snowplow unless it is absolutely necessary.
Source: Idaho Driver's Handbook (July 2026), page 110 · Open this page in the manual (Manual page 110)
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If you must pass a snowplow, which side should you NOT pass on?
- The side with the wider shoulder
- The side where the plow is spraying snow
- The side with the most open road ahead
- The side farthest from the sprayed snow
Show answer
Correct answer: The side where the plow is spraying snow
The force of the sprayed snow can knock your car out of control.
Source: Idaho Driver's Handbook (July 2026), page 110 · Open this page in the manual (Manual page 110)
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Why should you not cut back in front of a snowplow truck right after passing it?
- Its driver cannot sound the horn in snow
- Its blades extend into every lane at night
- Its sand spreader can only be switched off by stopping
- Its plow blades are often covered with snow and hard to see
Show answer
Correct answer: Its plow blades are often covered with snow and hard to see
The plow blades are often covered with snow and can be difficult to see.
Source: Idaho Driver's Handbook (July 2026), page 110 · Open this page in the manual (Manual page 110)
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Why should you not brake suddenly while traveling in front of a snowplow?
- The plow driver is not allowed to use the brakes in snow
- The plow blade would scrape your rear bumper
- Sudden braking makes the plow spread more sand
- The heavy vehicle cannot stop as quickly as your automobile
Show answer
Correct answer: The heavy vehicle cannot stop as quickly as your automobile
A snowplow is heavy and cannot stop as quickly as a car.
Source: Idaho Driver's Handbook (July 2026), page 110 · Open this page in the manual (Manual page 110)
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When law enforcement stops you, what should you do with your turn signal and position?
- Turn on your hazard lights and stop in the traffic lane to wait for the officer
- Keep driving at a slow speed until you reach a parking lot nearby
- Stop where you are and turn on your headlights to show you saw them
- Activate your turn signal and pull off or to the side as soon and safely as possible
Show answer
Correct answer: Activate your turn signal and pull off or to the side as soon and safely as possible
The handbook says to stay calm, activate your turn signal, and pull off or to the side of the roadway as soon and safely as possible.
Source: Idaho Driver's Handbook (July 2026), page 132 · Open this page in the manual (Manual page 132)
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After you pull over for a law enforcement officer, what should you do?
- Turn off the ignition and radio, and stay in your vehicle unless told to exit
- Leave the engine running and step out to meet the officer
- Turn the radio up so you can hear the officer's instructions clearly
- Step out and wait beside the car with your documents ready
Show answer
Correct answer: Turn off the ignition and radio, and stay in your vehicle unless told to exit
The handbook says to turn off the ignition and radio and stay in your vehicle unless directed by the officer to exit.
Source: Idaho Driver's Handbook (July 2026), page 132 · Open this page in the manual (Manual page 132)
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During a traffic stop, where should you keep your hands?
- On the dashboard
- Out of the open window
- On the steering wheel
- Behind your head
Show answer
Correct answer: On the steering wheel
The handbook says to keep your hands on the steering wheel so they are easily observable.
Source: Idaho Driver's Handbook (July 2026), page 132 · Open this page in the manual (Manual page 132)
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During a traffic stop, who should not use cell phones and mobile devices?
- Only you, the driver
- You and any of your passengers
- Only your passengers
- No one, unless the officer is slow
Show answer
Correct answer: You and any of your passengers
Cell phones and mobile devices should not be used by you or any of your passengers.
Source: Idaho Driver's Handbook (July 2026), page 132 · Open this page in the manual (Manual page 132)
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During a traffic stop, what should you do instead of searching for your license or vehicle documents?
- Hand all your documents out the window right away
- Search quickly so the documents are ready on arrival
- Place the documents on the dashboard before the officer comes
- Wait for the officer to give you instructions
Show answer
Correct answer: Wait for the officer to give you instructions
The handbook says not to make sudden moves or search for documents, but to wait for the officer to give you instructions.
Source: Idaho Driver's Handbook (July 2026), page 133 · Open this page in the manual (Manual page 133)
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If you have a weapon in the vehicle during a traffic stop, when should you inform the officer?
- Upon first contact
- Only if the officer asks
- After handing over your documents
- Only if the weapon is loaded
Show answer
Correct answer: Upon first contact
The handbook says to inform the officer of a weapon in the vehicle upon first contact.
Source: Idaho Driver's Handbook (July 2026), page 133 · Open this page in the manual (Manual page 133)
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During a traffic stop, your documents are out of your reach. What should you do?
- Reach for them quickly so the officer can see you doing it
- Reach slowly and hold them up in the window
- Tell the officer where they are before you reach for them
- Ask a passenger to search for them first
Show answer
Correct answer: Tell the officer where they are before you reach for them
If the documents are out of your reach, tell the officer where they are before you reach for them.
Source: Idaho Driver's Handbook (July 2026), page 133 · Open this page in the manual (Manual page 133)
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If the officer asks you to exit the vehicle during a traffic stop, what should you do?
- Stand behind your vehicle in the traffic lane with your hands down
- Stay safely away from traffic and keep your hands in plain view
- Walk to the officer's vehicle with your documents in hand
- Stay near your door and reach inside to find your documents
Show answer
Correct answer: Stay safely away from traffic and keep your hands in plain view
The handbook says to stay safely away from traffic and keep your hands in plain view.
Source: Idaho Driver's Handbook (July 2026), page 133 · Open this page in the manual (Manual page 133)