3 ms·
Wait a minute. How are Kolkatans with (probably) cheap phones getting their hands on coordinates that accurate when phone GPS is usually only good to within ~5
by meerkat14 7y ago
Wait a minute. How are Kolkatans with (probably) cheap phones getting their hands on coordinates that accurate when phone GPS is usually only good to within ~5m?[1] I assume the postal workers are getting high end equipment?
[1] "GPS-enabled smartphones are typically accurate to within a 4.9 m (16 ft.) radius under open sky" -- https://www.gps.gov/systems/gps/performance/accuracy/ https://www.gps.gov/systems/gps/performance/accuracy/
- WorldMaker 7y agoFirst guess: Signs, maybe? You only need a few accurate surveyors and they could write coordinates in places. Use the cheap accuracy to get close then follow the signs. Looking up the charity mentioned, they even have a nice photo of such a sign, so my guess appears validated: https://www.addressingtheunaddressed.org/services https://www.addressingtheunaddressed.org/services Neat.