They are doing pipe construction on my street. Been going on since late August. Where I live is near a cross street that's often used as a shortcut to avoid a 3 way intersection nearby. It's a one way to alleviate some of that. There's "no thru traffic signs up" but off to the side to allow residents to get to their house. Today they are working right on the corner and put the sign right in the middle. because the earth movers are in the middle of the street.
So many times just today I've seen cars pull right up to the sign and then sit there confused as to what to do because the sign is blocking the road. After about 20 seconds they begin the "back up of shame" and turn around, now turning their shortcut into an even longer ordeal. It's fun to watch actually.
I saw this last week at the Free Press marathon in Detroit. Roads were blocked off for runners. So many times I'd see cars pull up to the barricade then just sit there dumbfounded as to why nobody will move it for them so they can cross. One person asked me. "I need to get over there, can you move that?"
Do people just think these things are suggestions?