All I know is that I HATE HATE HATE roundabouts. They are deathtraps for cyclists. The one from article I assume is at Olympic and Pleasant Hill Rd, which I go through several times a week. It is absolutely scary going westbound on Olympic and seeing cars absolutely SCREAMING down Pleasant Hill Rd. They do not stop no matter what, and I've had multiple instances where I had to stop in the roundabout to "let" other traffic fly into the circle. Death to all roundabouts, they are the worst thing to happen to cyclists since the cell phone.