I think that’s because their driving license tests are so easy to pass.
It seems they can’t assume drivers recognize a “no U-turn” sign, even though there’s a clear similarity with other signs (round with a red edge and a diagonal red line means forbidden, black arrows mean driving directions)
Weirdly, they do assume their population and tourists can understand written English when passing such signs at speed in a car and even know what a ped xing is.
It seems they can’t assume drivers recognize a “no U-turn” sign, even though there’s a clear similarity with other signs (round with a red edge and a diagonal red line means forbidden, black arrows mean driving directions)
So, they write its meaning below it (https://www.alamy.com/beverly-hills-california-usa-8th-septe...).
Weirdly, they do assume their population and tourists can understand written English when passing such signs at speed in a car and even know what a ped xing is.
It may be a broader cultural thing, though. Their state flags also are full of text (https://en.wikipedia.org/wiki/Flags_of_the_U.S._states_and_t...)