[OSM-talk] Tagging schema

Martin Koppenhoefer dieterdreist at gmail.com
Mon Oct 5 11:40:55 BST 2009

2009/10/5 Liz <edodd at billiau.net>:
> On Mon, 5 Oct 2009, Martin Koppenhoefer wrote:
>> there is IMHO no boolean values in OSM. Feel free to give counter
>> examples.
> The arguments for how to tag a footway and a cycleway contain a number of
> boolean examples.
> Either you are permitted to drive a car down the footway, or you are not.
> You are permitted to cycle on the footway, or you are not.
> The trinary response from my culture would be "it's only a problem if you are
> caught".
> no_exit is boolean until we consider flying as a possibility

still there are other values like "unknown" and "motor_vehicle" which
seem to make sense to me (I didn't add them myself, as I consider
noexit (no_exit is used just 5 times, so I guess we're talking about
noexit) pointless: that's what a map is for, a router won't need this
tag, and in the end the whole earth is noexit, until we consider
rockets or other spacecraft a possibility)

> so having dealt with boolean, and discussed enumeration (house numbers)
> do you have any further suggestions after numeric, string and free text?

even housenumbers can be all kind of weird numbers, so limiting the
possibilities doesn't really meet the needs.


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