Since there's a possibility of some roundabouts coming to Davenport in the future, and some people talking about what they are and aren't, I thought I'd post a few videos from the Washington State DOT that do a pretty good job of explaining how they work, why they work, and how to use them. The only example of a roundabout in the QC area that I know of is in Bettendorf at the intersection of Middle Road and 53rd Avenue, seen in the image above. Two of the possible places suggested at the meeting last week in Davenport were the intersections of 46th and Eastern, and 46th and Jersey Ridge. To me, the two biggest pluses of roundabouts are that most people never have to come to a complete stop when going through them, and the hugely decreased chance of a head on or T-bone crash.
Here are a few videos that I think do an excellent job of explaining these intersections (that most Midwesterners are unfamiliar with) in a total of only 5 minutes.
Part one is called "Roundabouts - What they are, and what they aren't"
Part 2 is called "Roundabouts - How do I drive a roundabout?"
And here are links to the last 3 parts:
Part 3: Pedestrians and cyclists
Part 4: Safety benefits
Part 5: What does this mean for me?