[playingalong]

Not the OP, but let me try.

Some like "cross only at cross walks" or "no pedestrian crossing" are not a sign at all in EU. They are either implied by general traffic rules, or implied by traffic rules for given road category, or enforced with infrastructure.

"One lane bridge" EU has specific signs for lane cross section (not for bridges specifically). "Pavement ends" I even consider funny. What comes next after that? "A meadow starts?"

[jetbalsa]

"Pavement ends" normally means the road is going to be a dirt road or gravel road. Pretty common in rural areas

[yamtaddle]

"Slow the fuck down now, speeder—yes, you!—or be very unhappy when, a few seconds from now, you try to brake on gravel at high speed and spin out"

[karaterobot]

Depending on where you are in the U.S., a "cross only at crosswalks" sign is necessary because all intersections are considered to act as crosswalks even when there are no solid white lines. Pedestrians can still cross, and vehicles should yield the right of way. That sign could indicate an exception to the rule, due to some dangerous, non-obvious condition that makes it unsafe for pedestrians to cross the road.