I am seeing more roundabout in Lenexa, Olathe and some other cities nearby. One of the most annoying Roundabout are in Lenexa, kansas which have 6 to 8 roundabout in less than a mile. It was in a new industrial area. I forgot which street because I stopped driving through, too much hassle slowing down and go around. Between roundabout is about 200 feet apart. Imagine that if you were in hurry, you'll have to go half circle every short blocks

.
If I find roundabout on Google Satellite map, I will post it.
I don't mind roundabout if its just only more than 500 feet apart. some roundabout are small enough for me just to drive straight through when there's no car around (I tweaked the steering wheel a bit to avoid rubbing tire against curbs)
I've seen cars drive over side of roundabout in Olathe because it have sloping curbs around it. it's common during nights when they're speeding through
Catty