On 17 June 2010 02:12, M∡rtin Koppenhoefer <dieterdre...@gmail.com> wrote: > But what you can do is compare it to the surrounding / context / > nationwide / worldwide. It's like the highway key for tertiary,
In terms of airports, you really can only compare them on a world wide basis, it doesn't matter where a small airport is, it will never have the same level of importance as a major international hub like LAX. > secondary, primary. Maybe you can't tell initially but with more > progress of the map it becomes almost obvious, which level a street is That doesn't make things less subjective, roads are generally judged based on similar basis are airports, eg traffic flow, the amount of lanes/runways, is the road/runway paved, major airports nearby etc. While highway judgments may be deemed slightly subjective there would be ways to quantify things objectively as well, but humans tend to do this without breaking things down, ie show all working out. _______________________________________________ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
