In the US - in most (all?) states that I am aware of - the law requires that, on an un-divided highway, you "Yield the Right-Of-Way" to emergency vehicles.
Ambulance and Fire Truck drivers can take down your license plate numbers and you can get a ticket or fine for not yielding to them.
Because when you see it in your rear-view mirror, It reads AMBULANCE, and you know to pull over to let it pass.
To YIELD or to give the right-of-way.
So that if you see it in your rear-view mirror, you can read it instantly, and pull over to let the ambulance go by (which is the law in most if not all states).
If the ambulance isn't using its lights and sirens, just follow normal traffic laws. If it is, you'll need to pull over to the side of the road and wait for it to pass.
of course... the dead guy i n the hearse is in no big hurry.
As soon as it is safely possible, you need to slow down and pull over to let the ambulance pass. If there is no way to safely get off the road, at least pull as far to the right as you can. Just don't do anything abrupt in traffic that might cause an accident.
The spot is associated with untimely emergencies
It is written that way because when you look in the rear-view and side-view mirrors, you can see "AMBULANCE" written correctly, and can pull over to the right side of the road to let it through.
The protocol for drivers who hear police or ambulance sirens, in America at least, is to pull one's car over to the side of the road and stay idle until the cop car or ambulance is safely ahead.
Pull to the side of the road so it can go past you.
When following an ambulance, it's generally advised to stay at least 500 feet behind it to allow for proper clearance and to not obstruct its path. However, if the ambulance is responding with lights and sirens, it's best to give it as much space as possible and pull over to the side of the road. Always abide by local traffic laws and regulations regarding emergency vehicles.
As an EMT, I work on the ambulance a lot and I've seen many ways people try to get out of the way of an ambulance. On ANY road, when an emergency vehicle is coming, SLOW DOWN, or STOP and pull to the RIGHT. That is the correct way to yield right of way to an ambulance. This will help ambulance crews AA whole lot.