dbraughlr wrote:That isn't an explanation of the error. Of what is this a useful check?
Railroads are not currently displayed in the client. That's why editors in some areas started marking railroads as "walking trails", so they'd be displayed in the client. But now we are told by staff that railroads will soon be displayed in the client, so all those -5 walking trails should be changed to railroads. Did I leave some of that out?
As a matter of editor policy, all non-drivable road types (including railroads, runways, boardwalks, stairs, and walking trails) have elevation set to -5 per established convention. -5 indicates that the segment is not to be attached to the drivable roadways "to prevent false system reporting that think the roads should be connected.".
I don't know of this convention, other than with railroads. Perhaps it is not so widespread as you think. In my area, pedestrian boardwalks are marked using normal elevation rules.