On Tue, Jul 27, 2010 at 9:24 AM, Ian Dees <[email protected]> wrote: > On Tue, Jul 27, 2010 at 8:00 AM, Nathan Edgars II <[email protected]> > wrote: >> >> On Tue, Jul 27, 2010 at 8:24 AM, McGuire, Matthew >> <[email protected]> wrote: >> > This looks like coding for the map rather than mapping what’s on the >> > ground. >> > I understand that a highway’s importance to an area is relative to other >> > highways in the area. But that doesn’t mean a two lane at-grade highway >> > should be coded the same in one area as a four lane limited access >> > highway >> > in another. Or perhaps there should be another tag for the type of road >> > as >> > experienced on the ground vs a state or national scale map. >> >> We have those tags: lanes=*, width=*, etc. But there's no "on the >> ground" definition of importance, > > Yes there is. It's the highway= tag. Please explain? > >> >> and there's nothing wrong with >> tagging correctly for the renderers. > > Yes there is. "Tagging for the renderers" is the first thing people in OSM > will tell you *not* to do. That's tagging *incorrectly* for the renderer that you don't do. > >> >> Classification has been >> subjective from the beginning in the US, because there is no >> consistent government-assigned classification. > > That is incorrect. There is a relatively consistent government-assigned > classification system. It has been linked to several times on this list > (most recently by the originator of this thread). Can you give a link to it?
> The problem is that the > European community has decided that the highway tags are shorthand for > physical qualities that usually only exist in Europe. I don't know about other countries, but in the UK the classification has nothing to do with physical qualities; it's tied to a consistent importance-based system assigned by the government. > The suggestion I made > in my first reply to this thread was that we use a separate tag to describe > what the US government calls the way. This would allow us to make an > interstate-only road map like the one that Google shows you or that you can > obtain in paper from your state government. And what do you do for all the not-so-major roads that the US government doesn't care about (anything not an Interstate or on the National Highway System)? _______________________________________________ Talk-us mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-us
