Homer Watson and Ottawa Three Lane Roundabouts

[Canard]

Sorry, re-read your post Canard, and I was the one in the wrong as I misinterpreted the "enter parallel to them" comment.  Oops.

Coke

No worries, my wording isn't very clear (I'm terrible at describing things).  I went to make an image, but Google Satellite view isn't quite up to date in the area.  Here's a different roundabout (Block Line), trying to show the same scenario.  Green line is my intent, red path is where the other car could go.  If they signal "left", I know they're holding the inside line, and I can go too.  If they signal right, I know their intent is to exit, crossing my path - so I wait.  If they don't signal at all, I have no idea what they're doing - so I have to wait... and if they end up staying in, then that was a missed opportunity to go (efficiency loss).