Most topographic maps will be using MGRS grids for referencing a location, it can be 1m precise to 100m depending on how much digits you grid contains. Garmin GPS's have MGRS built in by default, it's a good idea to use both LatLng & MGRS when referencing a location.
Example of MGRS - 45R UL 12345 12345 (1 meter precise) - 45R UL 123 123 (100 meter precise) Cheers, OSM: @DenisCarriere Twitter: @DenisCarriere On May 3, 2015 3:59 AM, "Mark Iliffe" <[email protected]> wrote: > Hi John, All, > > what3words is free at point of use and is human readable - the word > component also is quite good at error checking. > > Postcodes and generic codes work if the people you want to use them have a > cognition of addressing systems like postcodes or mailstops. My experience > in rural Tanzania is that they don't have that experience. We've been > integrating what3words so people will be able phone or text location. ID > numbers on water points just washed away/eroded. what3words works even > under partial degradation, then it can be error corrected unlike a postcode > where every digit is relevant. > > Best, > > Mark > > Sent from my iPhone > > On 2 May 2015, at 23:52, john whelan <[email protected]> wrote: > > what3words is nice but is commercial. I was hoping for some sort of open > data prem code postcode idea. UK prem code is the house number so a prem > code followed by the postcode is a unique address. Example 10pr82az is 10 > weld road southport pr8 2az. > > Cheerio John > > On 2 May 2015 at 17:42, Mark Iliffe <[email protected]> wrote: > >> Hi Claire, >> >> Have you had a look at "what3words": http://what3words.com? It's three >> words and is multi lingual, quite a lot more usable than genetic codes. >> >> In Tanzania my team and I have been looking at using them (through >> pilots) for locating/identifying water points and will scale them across a >> few regions over the next year. >> >> Happy to chat more if you would like. >> >> Best, >> >> Mark >> >> On 2 May 2015, at 21:45, Claire Halleux <[email protected]> >> wrote: >> >> Ever heard of this? >> A G*solution for locating places accurately where addresses are not >> obvious: >> >> http://google-opensource.blogspot.be/2015/04/open-location-code-addresses-for.html >> >> Still, it doesn't seem to me more intuitive than coordinate systems. >> Ex: I am currently in 87C4VXW3+HG8. >> There are ways to shorten it, but I doubt that those would be applicable >> in places that would actually need this kind of tool. >> >> However, would you have any experience on this or other ways to share >> regarding using non standard geographic coordinates system for locating >> places? >> >> Claire >> >> Claire Halleux >> +243 99 256 9980 (Kinshasa, DRC) >> Humanitarian OpenStreetMap Team >> >> http://www.hotosm.org/ >> http://wiki.openstreetmap.org/wiki/2014_DRC_Ebola_Response >> >> _______________________________________________ >> HOT mailing list >> [email protected] >> https://lists.openstreetmap.org/listinfo/hot >> >> >> _______________________________________________ >> HOT mailing list >> [email protected] >> https://lists.openstreetmap.org/listinfo/hot >> >> > > _______________________________________________ > HOT mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/hot > >
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