Hacker News Reader

Roundabouts are superior to other intersection types in nearly every case. Two lane roundabouts are a notable exception.

Two lane roundabouts are fantastic if you’re familiar with the intersection. If you’re not it’s too easy to get shunted out of the roundabout early

imho the only kind of acceptable 2-lane roundabout is a turbo-roundabout: https://en.wikipedia.org/wiki/Roundabout#Turbo_roundabouts