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I think you're being a bit dismissive. Hills are just one example - every city has its local issues, be they hills, rivers, different laws, traffic patterns...
by pimlottc 12y ago
I think you're being a bit dismissive. Hills are just one example - every city has its local issues, be they hills, rivers, different laws, traffic patterns...
- mikeash 12y agoRivers are irrelevant to a GPS. Rivers only matter to a car to the extent that they determine the road layout, and GPSs know the road layout. They're also pretty good about laws, although there is still some trickiness about things like left-turn prohibitions that are only in effect at certain times. It's getting better all the time, though. Their traffic data is in my experience better than human estimation at this point, since they can route based on actual current conditions rather than extrapolations from past experience.