id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
10875	Flag waterway/road crossing with missing tunnel/bridge attr	jengelh@…	team	"The validator should flag crossings of road and waterways where tunnel/bridge attribute is absent on both objects. (This in addition to the already-existing check that the layer= values are different.)

Encountering a crossing of two ways with properties
 - waterway=* layer=-1
 - highway=primary|... layer=0

should be flagged. From real-world possible construction practices, we know that one of the two has to hold true: Either the waterway is tunneled in some form under the road, or the road is built as a bridge.

[Current OSM version 1.0-7777 appears not having such a check.]"	enhancement	new	normal		Core validator	tested