[Mattk]

Out of anything he can be an expert on, he chooses speed limits?! Crazy! Nice work in thinking up that wild argument, though.

Circuit Courts do not create binding precedents. I'm very surprised that the circuit judge was allowed to adjudicate on the legality of a legislative instrument as that is the role of a superior court. The upshot of that is that nothing has happened beyond the facts of this case. However, this does seem like a sound decision as cities cannot create laws either. They are bound by the acts that create them. I don't think the city will appeal and this weird case will stay in Ann Arbor, where it probably belongs.

To be honest, I think this 85th percentile formula is rubbish. It's too simplistic and will result in inaccuracy unless further study into road use and the road itself is undertaken.