[OSM-talk] Subway station vs. subway entrance

[Iván Sánchez Ortega]

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El Domingo 18 de Febrero de 2007 13:37, Guenther Meyer escribió:
> that's one problem I have with osm. it's a great project, but it seems,
> that people here like to tag every little dust particle.

IMHO, the OSM data has an accuracy of <15 meters (the accuracy of a typical 
GPS unit), and any feature smaller than 20-30 meters should be ignored 
(unless it has some special relevance).

So, I'm not mapping any parking space, any trash bin, any set of traffic 
lights. They're so small that I don't mind about them.

However, subway entrances can be quite far apart (150 meters). AND they serve 
as landmarks ("I'll date you at the Foobar Metro station, just outside the 
southern entrance")

Thus, my opinion is that subway entrnces are relevant and should be mapped.

> you can't guide someone to his destination only by looking at the
> map/navigation-device. if you like to do that, you have to tag also every
> pole standing around...

Just imagine that we are in year 2030, and OSM has covered 100% of the 
earth... We sure will start mapping light poles and trash bins around ;-)

- -- 
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Iván Sánchez Ortega <ivansanchez at escomposlinux.org>

http://acm.asoc.fi.upm.es/~mr/ 
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