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I live in Boston and my car’s HUD displays this information (speed limit and such). Sometimes it gets it wrong despite living in a major city center. Once my ca
by helen___keller 3y ago
I live in Boston and my car’s HUD displays this information (speed limit and such). Sometimes it gets it wrong despite living in a major city center. Once my car even alerted me when I was going the wrong way on a one-way — except that I wasn’t. I can only imagine in deep suburbs / rural it is even less reliable.
- MarkSweep 3y agoBoston can really confuse a GPS. While driving in the underground freeway, the GPS was giving me turn-by-turn instructions for the city streets above.
- wtallis 3y agoIt sounds like you're describing a system based on GPS and map data, not one of the systems that read the actual signs posted as you drive by them. The only problems I've had with the speed limit sign reader in my car are conditional speed limits (e.g. school zones during certain hours, truck-specific limits). Otherwise, they're just limited by the prevalence of the physical signs.
- bloaf 3y agoEven reading the signs is non-trivial, I drive several stretches of road where an access road runs parallel to a highway, and the 20mph lower speed limit signs for the access road are clearly visible from the highway and only slightly farther off the shoulder than the correct signs.
- jonhohle 3y agoThis seems like a useful service for cities to provide: street maps and traffic rules for each segment in a standard format.