This is not the first time I've seen it... Between Puebla and Cordoba on the toll roll some overpasses in rural areas have guys watching the traffic and waving red flags... What's it about?
checked it out again today on our drive north. the overpasses are only barely 1 lane wide and the flagman is directing cross traffic. even people in the "boonies" use the roads
I don't know why but this brought up an old memory.
Driving north on (IIRC) I-75, some where south of Ohio, we pass a sign that says "Drug Inspection Checkpoint". I think, "Great, I hope they don't want to take all of my family's belongings out of the car !" We come around a corner and the only thing I see up ahead is a bridge. There is a wide, treed median. A couple of hundred yards before the bridge, there is a maintenance cross-over between north and south bound lanes. As I pass under the bridge, I notice the "smokey" with binoculars on the bridge and a couple of patrol cars on the south bound side.
What a sneaky trick ! Anyone with drugs would try to take the illegal cross over and be stopped. They would at least get a traffic violation and possibly a lot more !!