My experience in London and NYC is the opposite. In NYC there was rarely a time that I couldn't hear a siren. I figured it was because of the very long, straig

My experience in London and NYC is the opposite. In NYC there was rarely a time that I couldn't hear a siren. I figured it was because of the very long, straight roads with unbroken sight lines and the curious way American emergency vehicles seem to leave the siren on all the time. In London I live on a main road but only hear them a few times a day, only for a second as they go past, and rarely at night. Quite a lot of emergency vehicles drive past, but they usually have the siren turned off for the small area where they're audible to me.