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No one uses turn signals on them, and you never know when, where, or if someone is going to turn. It's haphazard maneuvering. 4-way stops are far more predictab
by RightMillennial 8y ago
No one uses turn signals on them, and you never know when, where, or if someone is going to turn. It's haphazard maneuvering. 4-way stops are far more predictable and functional.
- jermaustin1 8y agoYour first comment is accurate, no one uses turn signals in any of the ones I use on a daily basis either, but that doesn't make them inefficient. In fact I think it keeps everyone on the defensive, and makes them pay more attention before entering. But as I said in an earlier comment, the reason they kind of suck in the US is we don't seem to do them right. * A very wide circle (350ft/100m minimum) with 3 lanes * Each entrance and exit has 2 lanes. * The outside lane of the circle directly connects the outside entrance with the "first" exit. * The middle lane of the circle and the inside lane of the entrance allows you to exit at ANY of the exits * The far inside lane of the circle exits nowhere without a lane change, but allows you to bypass an exit that might be backed up due to traffic.
- jpatokal 8y agoHuh? That's only feasible for intersections of large roads, but American four-way stops are usually on small(ish) residential roads, where single-lane roundabouts work just fine.
- jermaustin1 8y agoNo one is saying that roundabouts should replace ALL intersections, and the few they have in small residential places operate just fine with a single lane, but I'm skeptical of their value over a proper 4 way stop or a 4 way protect turn light.