[Tagging] SF Muni tram lines are layer=1?

Chris Hill osm at raggedred.net
Mon Dec 17 18:23:56 GMT 2012

On 17/12/12 06:50, Clay Smalley wrote:
> I noticed the majority of the trackage of the San Francisco Muni lines 
> are tagged as layer=1, while the streets along which they run have no 
> layer tag (an implied layer=0).
> If the Muni lines are layer=1, it is my understanding that the Muni 
> lines should be physically above the street.
> Since this is not the case and the lines run at street level, should I 
> remove the layer tag on these specific tracks (to imply layer=0)?
> (Of course, some of these lines run through tunnels where they are 
> tagged layer=-1, and on bridges where they are tagged layer=1 
> correctly. The layer tag on these bits of track would remain untouched.)

The layer tag is only a hint to renderers. If you remove the tag the 
road way may render over the rail way and hide it.

Cheers, Chris
user: chillly

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