Too many people remain at the stop sign until the roundabout completely clears, so it becomes an excruciatingly slow 4-way stop. And there's not much traffic there.
A few miles from that one, there's a high traffic roundabout that works very well. The heavily used right turn lanes are divided and don't enter the roundabout. There are very clear markings on the ground. And there are yield signs at the entrances, so people know what to do. Traffic flows great through it, with the heaviest direction of travel naturally getting more throughput.
Too many people remain at the stop sign until the roundabout completely clears, so it becomes an excruciatingly slow 4-way stop. And there's not much traffic there.
A few miles from that one, there's a high traffic roundabout that works very well. The heavily used right turn lanes are divided and don't enter the roundabout. There are very clear markings on the ground. And there are yield signs at the entrances, so people know what to do. Traffic flows great through it, with the heaviest direction of travel naturally getting more throughput.
https://www.google.com/maps/@37.7004641,-120.976448,3a,75y,1...