The rental car I am using now certainly a) reads road signs for speed limit information, b) is definitely fooled by signs on off ramps etc. It’s hard to imagin

The rental car I am using now certainly a) reads road signs for speed limit information, b) is definitely fooled by signs on off ramps etc. It’s hard to imagine how speed limit systems would work without some sort of vision capabilities — a database of speed limits would never be up to date with roadworks and so on.