If the heavy traffic or the locked out traffic does a right turn in the roundabout, then a solution to this is a bypass lane. This works very well for letting t

If the heavy traffic or the locked out traffic does a right turn in the roundabout, then a solution to this is a bypass lane. This works very well for letting traffic through and opening up the roundabout. Multi-lane roundabouts help when theres a clog downstream of the roundabout. Roundabouts are also great if you have more than 4 roads meeting. But yeah, in general roundabouts shine the most in low-traffic intersections that previously had lights. They make driving in those are so much nicer, drivers basically never have to stop.