Comments by "Mentat" (@_Mentat) on "15 Road Signs and Symbols You Might Not Know! | BlackBeltBarrister" video.

I suspect more drivers would recognise the signs if they saw them while driving. Out of context, in a survey, it's harder. (For me the empty red circle was the head-scratcher.) As for the stop sign, in the UK it's very rare but in the USA they put them in all over place when they don't want to spend the money for more sensible road furniture, eg, can't afford a pelican crossing outside a school? Just put a random STOP sign by the front gate, nowhere near a junction. Most drivers will stop most of the time.
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Other interesting facts about US stop signs: pedestrians have right-of-way and can cross the road in front of the stopped car even if there is no "crosswalk" painted on the road, and in a small number of states cyclists don't have to stop at stop signs.
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@ianl1052 These days yellow school buses literally have traffic lights on their back and can force you to stop or give you permission to go.
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