A reader writes in: "As long as I can remember, I've seen "Your Speed" signs on Montrose between Magnolia and Clark, one in each direction. But I can't ever remember seeing them work.
So some Uptown trivia: Has anyone ever seen them work? Ever? If not, why are they there?"
Okay, readers, your turn: Anyone got any experience with seeing these actually monitor a car's speed? Any clues, guesses, conspiracy theories about why they're there if they're not now, and possible never have been, operational?