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Hi - plus codes founder here. You can just keep adding digits and the area gets smaller. The way I think of it is: +XX "house" (13x13 meters) +XXX "bathroom" (
by drinckes 7y ago
Hi - plus codes founder here. You can just keep adding digits and the area gets smaller. The way I think of it is:
+XX "house" (13x13 meters)
+XXX "bathroom" (3.5x2.8 meters)
+XXXX "chair" (87x56cm)
+XXXXX "envelope" (22x11cm)
In Kolkata the NGO (Addressing the Unaddressed) are using +XXXX codes.
- meerkat14 7y agoWait 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.
- Tharkun 7y agoThanks for clearing that up!