People who actually know how to signal in a roundabout are a rare breed. Dunno how it’s in other countries but the German rules actually make sense: Don’t signal when entering. There’s exactly one way to go, so why would you. Don’t signal when driving around the roundabout as that’s straight ahead (even if it’s a circle). Do signal before the exit you want to take, this is for the benefit of people waiting to enter (or maybe those behind but only on 2-lane roundabouts). As a corollary: If you signal while you enter you’re pining straight for the first exit… but honestly avoid it too many people signal wrong so it’s better to not play fast+loose.
People who actually know how to signal in a roundabout are a rare breed. Dunno how it’s in other countries but the German rules actually make sense: Don’t signal when entering. There’s exactly one way to go, so why would you. Don’t signal when driving around the roundabout as that’s straight ahead (even if it’s a circle). Do signal before the exit you want to take, this is for the benefit of people waiting to enter (or maybe those behind but only on 2-lane roundabouts). As a corollary: If you signal while you enter you’re pining straight for the first exit… but honestly avoid it too many people signal wrong so it’s better to not play fast+loose.
Australian rules are (we keep left and go clockwise around roundabouts)
I’m sure most people follow the rules, but I see a lot who indicate wrong, and the drivers of the various premium brands don’t indicate at all ever
in the Netherlands people often do signal left while on the roundabout but that feels mostly because of cyclists who also do so.