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Notes -
LOL. Just a few weeks ago I myself sent to PennDOT a complaint about some signs that were blatantly wrong. Multiple signs all said "left lane ends, merge right", but in reality the right lane ended and motorists had to merge left! And I drove past these signs for many months before I got around to making the complaint. I imagine the lawsuit resulting from a crash at that location would be legendary. (No standards compliance? No design immunity!)
MUTCD-compliant signs serving this purpose already exist.
R3-1: "trucks over XX tons no right turn"
R5-2: "no trucks"
R12 series: "weight limit XX tons", "axle weight limit XX tons", "weight limit 2 axles XX T, 3 axles YY T, 4 axles ZZ T", etc.
W8 series: "pavement ends", "loose gravel", "rough road", etc.
Presumably the municipal governments are just too incompetent to install them (and pass ordinances backing up the R (regulatory) signs).
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