09-13-2017, 03:06 PM
I suspect (but have no real evidence or experience) that when you have the majority of the traffic being on one road (as in opposite sides of the round about) - you can get long waits at the other two entrances because there are no breaks in traffic. The addition of the right turn lane probably allows you to get a lot more of the minor road traffic through whenever you do get one of those breaks.