I've seen "unofficial" speed limit signs put up by residents of a given location. They look exactly like official signs, and I imagine it's tricky to properly p

I've seen "unofficial" speed limit signs put up by residents of a given location. They look exactly like official signs, and I imagine it's tricky to properly police this. I wonder if this system opens up an attack surface for bad actors to intentionally modify speed limits to either lower or higher than official ones. Reminds me of the guy who managed to make Google Maps report a traffic jam by pushing a cart full of smartphones around [0], except this one affects your hardware by automatically cutting off throttle and doesn't require drivers to rely on an app. Also, from the article: > "How will I enjoy my recreational driving when ISA systems come into force? Same way I do right now: in slow old sheds that would only break the national speed limit if you pushed them off a cliff." So it's pushing people who drive for fun to do so in older vehicles with correspondingly older safety technology. Interesting. [0] https://www.businessinsider.com/google-maps-traffic-jam-99-smartphones-wagon-2020-2 https://www.businessinsider.com/google-maps-traffic-jam-99-s...