The year is 2080, we solved the climate crisis, we solved the poverty crisis. You live in a pretty chill solarpunk utopia that is considerate, sustainably, just and generally safe. The few dangerous places out there are clearly labelled.
Choose one of those signs and explain why it is displayed where it is.
EDIT: for some reasons up/downvotes do not work for me here. Is anyone having similar problems?
I tried using inkscape to auto-trace the bitmap, the results are subpar. So I traced the one you wanted to print, and maybe some day I will trace the others (but unlikely, besides, I'm not sure what license does this picture have)