In the area where I'm mapping, I keep coming across ways glued for no apparent reason. I have an intense dislike of gluing, except for when two ways are bound by_definition, such as a County boundary being defined to be coincident with the center line of a river.
Here, I'm trying to add roads to relations, but keep coming up on the situation where the road is glued to two landuses.
Where the two landuses are identical (usually residential), what's the point of having two polygons butted-up to one another (glued) ? Wouldn't it be better if these were merged into one landuse ?
I can understand having separate landuse=residential polygons where they are separated from each other by, say, a road. However, where the (line of the) road itself forms the boundary of both landuses, I can't see the point. Does this hark back to an age when a road was considered to be just a line, of infinite thinness ?
What's the correct way of handling this.