Mike,
If I'm correct, you're talking about Fairfax Circle. And if you are, then I need to point out for the unfamiliar masses that it's possibly the most ludicrous traffic-routing goat rodeo that it's possible to imagine.
Traffic circles exist so that traffic can go around it, so that people coming in can merge together with the flow, and then exit the circle at whichever of the outgoing points they require without ever stopping. Thus, in theory, getting somewhere without delay.
However, comma, because so very many people need to go straight through on Route 50, east in the morning and west in the afternoon, VDOT decided that the best solution would be to punch that road right through the middle of the circle, and put traffic lights where the circle and the road intersect.
So instead of two roads meeting at a light, which would be reasonable under the circumstances, and instead of a pure traffic circle, which would be less reasonable but at least sane, we have a not-quite-traffic-circle-yet-again-not-quite-intersection that is intrinsically dangerous because it's unlike any other traffic-flow scheme in the region. It lacks the advantages of a simple traffic light, because there are two lights instead of one, and to turn left you have to go right, and then wait at the light to cross the road you were already on. It lacks the purported advantages of a true circle, because no matter which direction you want to go, unless it's "straight through the middle", you're waiting at a light anyway.
Granted, wankers running the lights are a problem, but the real solution should involve blowing the whole thing away and putting a sane intersection in, and then enforcing the red lights.
-BP