A siren behind you can make even a calm driver tense up.
So can a row of orange cones, a flashing arrow board or a tow truck working on the shoulder.
These are the moments when other people's lives depend on how you react.
Police officers, firefighters, paramedics, tow operators and road crews all work a few feet from moving traffic.
The rules for driving near them are simple, but many drivers are not sure of them.
This guide explains what to do when an emergency vehicle approaches, how move over laws work and how to get through a work zone safely.
The details come from the California Driver Handbook.
Every state has similar rules, so check your own state driver handbook as well.
When you hear a siren or see red lights
The rule is clear.
The California Driver Handbook says to give the right-of-way to emergency vehicles.
That means any police car, fire engine or ambulance using a siren and red lights.
Drive to the right edge of the road and stop until the emergency vehicles have passed.
The handbook adds that failing to pull over may result in a ticket.
How to pull over smoothly
Pulling over is not a race. A calm, predictable move is the safest one.
- Turn down the music so you can hear where the siren is coming from.
- Check your mirrors and look for the flashing lights.
- Signal to the right.
- Slow down gradually and move to the right edge of the road.
- Stop and stay stopped until the emergency vehicle passes.
- Watch for a second or third emergency vehicle before you pull back out.
Avoid slamming on the brakes in the middle of a lane.
A sudden stop can cause a crash behind you.
Do not stop on a curve or a hilltop where you may block the emergency vehicle's view.
If you are already in an intersection
Sometimes the siren appears just as you are crossing an intersection.
The handbook says to continue through the intersection.
Then drive to the right as soon as it is safe and stop.
Stopping in the middle of the intersection would block the very path the emergency vehicle needs.
Do not follow emergency vehicles
Some drivers are tempted to tuck in behind an ambulance or fire engine to get through traffic faster.
That is illegal and dangerous.
The handbook says it is against the law to follow within 300 feet of an emergency vehicle.
That covers any fire engine, police car or ambulance with its siren or flashing lights on.
Emergency vehicles may stop suddenly, turn without warning or run red lights.
A car following closely has no time to react.
Stay away from the scene
The handbook also warns that you can be arrested if you drive to the scene of a fire, collision or other disaster.
Curious drivers get in the way of firefighters, ambulance crews and other rescue workers.
If you pass a crash, keep your eyes on the road and keep moving.
Slowing down to look is a common cause of second crashes.
Obey officers and firefighters directing traffic
At a crash or a closed road, a police officer or firefighter may direct traffic by hand.
The handbook says to obey any direction, order or signal they give.
Follow their orders even if they conflict with existing signs, signals or laws.
For example, an officer may wave you through a red light or tell you to turn where a sign says not to.
Their instruction comes first.
Move over and slow down
Many roadside deaths happen to people standing next to a stopped vehicle.
Move over laws exist to give them a buffer of space.
The handbook says that when you approach a stationary emergency vehicle with flashing lights, you must move over and slow down.
The rule also covers these vehicles:
- Stationary emergency vehicles or tow trucks displaying flashing amber warning lights.
- Stopped road work vehicles displaying emergency flashing or amber warning lights.
How to do it
- If there is a lane away from the stopped vehicle, signal and move into it when it is safe.
- If you cannot change lanes safely, slow down well below the speed of traffic as you pass.
- Leave as much space as you can between your car and the shoulder.
- Keep your eyes moving, because people may step out from behind the vehicle.
Plan ahead. Flashing lights on the shoulder are visible from far away on most highways.
The earlier you notice them, the easier it is to change lanes smoothly.
Traffic breaks on the freeway
Sometimes an officer needs to slow every lane at once to clear debris or protect a crash scene.
The handbook's safe driving section describes these traffic breaks.
A patrol car turns on its rear emergency lights and slowly weaves across the lanes.
When you see this, slow down gradually and keep a safe distance from the patrol car.
Do not try to pass it.
Turning on your hazard lights warns the drivers behind you that traffic is slowing.
Driving through a work zone
Road work zones change from day to day.
Lanes shift, shoulders disappear and workers stand only a few feet away from traffic.
The handbook says you will see warning signs and message boards when there are workers, slow-moving equipment and closed lanes ahead.
It lists five habits for going through a work zone:
- Slowing down.
- Allowing extra space between vehicles.
- Expecting sudden slowing or stopping.
- Watching for drivers changing lanes.
- Avoiding distractions.
Follow the cones and the flaggers
Cones, drums and other barriers guide you through the work zone.
The handbook says to merge as soon as it is safe, without crossing the cones or drums.
Be ready to slow down or stop for highway equipment.
Watch for bicyclists too, especially if lanes are narrow or the shoulder is closed.
Obey special signs and instructions from workers, such as flaggers holding stop and slow signs.
Why fines are higher there
Work zones carry some of the steepest penalties on the road.
In California, fines for traffic violations in a work zone can be $1,000 or more.
Anyone convicted of assaulting a highway worker faces fines of up to $2,000 and up to one year in jail.
Fines are doubled in highway construction or maintenance zones when workers are present.
Some roads are also marked as Safety Enhanced-Double Fine Zones because of high numbers of injury crashes.
Fines are doubled in those zones as well.
Funeral processions
A funeral procession is another group of vehicles that gets special treatment.
The handbook explains that a procession is led by a traffic officer and has the right-of-way.
Cars in the procession have their headlights on and windshield markers to identify them.
Do not cut into the line or interrupt it. You can be ticketed if you do.
Never try to evade an officer
When a patrol car signals you to pull over, do it promptly and safely.
The handbook says it is a misdemeanor to use a vehicle to flee or try to evade law enforcement.
Penalties grow much more serious if anyone is hurt or killed during a pursuit.
Find a safe spot on the right, stop and wait for instructions.
Stay calm and predictable
Most mistakes around emergency scenes come from panic.
Drivers freeze in a lane, swerve without looking or speed up to beat a siren.
A few habits help you stay ahead of the moment:
- Keep the radio low enough to hear sirens.
- Check your mirrors often, not only when you change lanes.
- Leave space around your car so you have somewhere to go.
- Look far ahead for flashing lights, cones and slowing traffic.
Our guide to right-of-way rules explains who goes first in everyday traffic.
A quick checklist
- Siren and red lights: pull to the right edge and stop.
- In an intersection: keep going, then pull right and stop.
- Stay at least 300 feet behind an emergency vehicle with lights on.
- Move over and slow down for stopped emergency, tow and road work vehicles.
- Never pass a patrol car running a traffic break.
- In work zones, slow down, follow the cones and obey flaggers.
- Remember that fines double where workers are present.
The bottom line
The people working on the side of the road have only your attention to protect them.
Pull over for sirens, move over for flashing lights and slow down in work zones.
Those few seconds cost you almost nothing and can save a life.
Sources and Further Reading
- California DMV: California Driver Handbook, Section 7, Laws and Rules of the Road (Continued) — supports yielding to emergency vehicles, the intersection rule, the 300-foot following law, obeying officers and firefighters, move over and slow down, work zone habits and the work zone fines.
- California DMV: California Driver Handbook, Section 7, Laws and Rules of the Road (Continued, part 2) — supports the funeral procession rule and the penalties for evading law enforcement.
- California DMV: California Driver Handbook, Section 8, Safe Driving — supports the description of law enforcement traffic breaks.