I noticed that when driving through Everon at night, the roadside signs and posts are not as clearly visible as they should be, as they are not relfective.

I don't think the bigger signs would probably not be reflective on Everon in 1989, but the signposts should be at least a little.

Current situation (high beams on): The posts are not visible, but not from a greater distance and the reflective parts are not... reflecting.

Real life examples of reflective side posts at night.