> The cost per mile was just too high. That's why I specified "in large metropolitan areas". I can see that it's impractical to outfit anything outside dense c

> The cost per mile was just too high. That's why I specified "in large metropolitan areas". I can see that it's impractical to outfit anything outside dense cities with such beacons, but inside the city they could augment, if not replace autonomous driving systems. Or so I imagine. > GPS, A-GPS, and RTK Thanks for telling me about RTK, I did not know about this!