i have shown my son this video , he is a paramedic and rapid response abulance driver , he says pretty much as others have said, if more drivers in this country responded like those in the video his job would be a damn sight easier , as skol pointed out, many times another motorist jumps into the space that someone created to let an ambulance pass ,or just stop in their tracks in the middle of the road.
on another note , a couple of weeks ago , returning from a call,driving the ambulance , he was stopped at traffic lights with one car in front of him ,when an ambulance, complete with sirens came from the right , the car driver in front of my son thought it was the ambulance behind that had put on the sirens and pulled out into the path of the ambulance coming from his right missing it by inches .