[Talk-us] Neighborhoods / Zillow

[Martin Koppenhoefer]

2013/6/17 Anthony <osm at inbox.org>

> It's not about mapping the sign, it's about mapping the neighborhood based
> on the sign.
>
> We don't map speed limit signs, we map the speed limits on the roads based
> on the signs.
>


where do you get this from? We are indeed mapping speed limits signs
(additionally to the speed limits on the roads and based on these signs).
The purpose is verifiability and ease of mapping. You often don't register
every single sign in the first survey, and having the sign locations really
simplifies further maxspeed mapping on the road. There is even a
JOSM-mappaint-style to show the right speed limit sign (maxspeed signs).

We also map other signs, e.g. city limits signs:
http://taginfo.openstreetmap.org/keys/traffic_sign



>   We don't map individual trees, we map forests.
>


also here we do actually both. The tag to map a tree is natural=tree, and
there are subtags to refine with details (e.g. species, denotation, ...)



> We don't map "keep out, military area" signs, we map military areas.
>


I agree as long as you can draw the whole area in one go/ based on one
survey, but if you only did your surveys bit by bit I'd recommend to start
mapping military area signs in order to reconstruct the whole boundary
after you have collected enough of them.


cheers,
Martin
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