Bryan Housel <[email protected]> writes: > Can’t a motorway begin or end at an at-grade intersection though?
Certainly, and I think the question is how long does a stretch of road that meets motorway specs have to be to be tagged motorway. The basic issue is that "not having at-grade intersections" is not a local property of a road, and is really a statement about the road before and after where one is talking about. Assume an infinitely long road, divided, 2 lanes each way. After a very long time of no intersections, assume an at-grade intersection, and call this coordinate 0, expressed in km. Then, assume an another at-grade intersection at 0.100. After that, at 0.110, and so on, with each being 1.1 times the previous. By the time you get to 500 km between at-grade intersections, the intevening roads are surely motorways. At 100m, they surely are not. In my view, to be tagged as motorway, the length of qualifying roadway has to be long enough so that it feels like it is very long, as opposed to a lucky 2 to 3-mile stretch of trunk that happens not to have any intersections. Overall, I would throw out that if a section that meets motorway specs isn't at least 10 miles, it's still really nice trunk, and should not be tagged motorway. Maybe 10 is too much and it should be 5 mi, or 10km, or maybe it should be 20 or 25 km. But 1-2 miles is way too short to flip back and forth. I have no idea if this supports or opposes Paul in this case :-) But I'm guessing it supports... _______________________________________________ Talk-us mailing list [email protected] https://lists.openstreetmap.org/listinfo/talk-us
