[OSM-talk] Underground / hovering buildings

Nathan Edgars II neroute2 at gmail.com
Wed Feb 16 07:32:44 GMT 2011

David Murn wrote:
> Well, the page seems to contradict itself, suggesting that a tunnel
> under a building is layer=0.
Depends if the tunnel goes underground or just through a building while
remaining at ground level (though the latter case might be better described
as covered).

David Murn wrote:
> Also in a note near the bottom of the
> page, it is suggested that a flat bridge at the same level as the ground
> around it should be level=1, even if what it crosses is far below.
Example: http://en.wikipedia.org/wiki/Royal_Gorge_Bridge
The ground level itself goes down into the gorge.
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