Tobias Knerr wrote: >Randy wrote: >>I propose that an additional property for highway of "covered=yes" be used >>for this and similar situations, where a road extends under a building, >>roof attached to a building, etc. > >If I understand you correctly, this tag is supposed to be used for >ways/areas that are under buildings, not for hallways, rooms etc. >inside buildings. >
I'd like to amplify on what you said. "covered=yes" could be used for ways that are under something besides a building. For example, a buried power line that is "covered" by the ground (I couldn't find a reference to this situation under Power, and it's information of interest to excavators [maybe covered=yes, depth=1m]). An abandoned highway that is "covered" by a lake (information of interest to anglers). A buried gas/oil transmission line, a buried water main, etc. The concepts are a little different from what I had proposed for traveling ways, i.e., either open on some sides or not of restricted mobility as in a tunnel, but the general principle that they can't be appropriately defined by layers applies. Layer=-1 in most of these cases doesn't really define the situation, since even though a way may be at layer=-1, it isn't by default considered to be covered by the ground, and in the case of the lake, there is the issue of whether the ground that the road was built on is layer 0 or if the lake once it covered the ground is now level 0, unless you explicitly define level 0. I believe that "covered=yes" circumvents all of these issues. -- Randy _______________________________________________ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
