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.) -- Clay
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