I knew it – all those sirens on ambulances and fire trucks tearing around town might not be improving outcomes. They are bad for our hearing (especially for the people working on the trucks) and might startle drivers into making mistakes or sudden unpredictable moves. Sure, the idea is that if you are having a heart attack or stroke the second count. But according to this article at least, the data just don’t support the idea that those sirens are getting the paramedics to you faster.

Americans love our sirens. When I lived in Singapore for a couple years, one thing I noticed was that police, fire trucks (which were often more like vans), and ambulances didn’t use sirens much. Now, Singapore tore down most of its historic buildings (which you could argue is sad), which means its buildings are mostly very modern standardized high rises. I think that is one reason they don’t need the big fire trucks. Their streets are wide and well maintained (this is not great for pedestrians or people on bicycles). They also do congestion pricing on a major scale so they just don’t have the traffic we have (I support this, but you could argue it is inequitable because the rich can afford to drive while everyone else takes public transportation. The public transportation is very good and reliable however.) Sirens aside, I found Singapore awful in terms of urban noise pollution and wore ear plugs much of the time I was there. The noise didn’t seem to bother most of the locals or people from nearby countries.