+1
IMO, the Cardinal Rule relating to traffic circles is to expect the unexpected. Also, be sure to be driving slowly enough to be able to successfully evade the occasional a-hole who suddenly cuts across your path.
In my area, we have the notorious “Somerville Circle”. In reality, some parts of it are in Somerville, and other parts lie in two other municipalities. This leads to some confusion when the inevitable collisions take place a few times each week. One PD will show-up, only to have them radio one of the other PDs because the accident took place a few feet away from their jurisdiction, in a different municipality.
This traffic circle is at the confluence of a major highway and three smaller side roads, so the traffic entering and exiting can be really chaotic at times. The situation was improved more than a decade ago when a flyover for the major highway was built over the circle, but it’s still not a pleasant experience, and a prudent driver has a LOT to deal with if he is to avoid the knuckleheads.
A bit of historical trivia has to do with this location, as the official end of WW I took place a few feet from that traffic circle. The plaque noting the location of this event is–sadly–now situated in the parking lot of a Burger King.