On Sun, Mar 7, 2010 at 4:01 PM, Paul Johnson <[email protected]> wrote:
> Anthony wrote: > > > > I'm not sure what you mean by "work differently". The laws of different > > states are different, so the information which needs to be presented by > the > > map is different. The maps, therefore, are going to be different. I > > wouldn't "expect the same map to work differently" in different places, > > because I wouldn't "expect the same map" in different places. > > So you're suggesting a 300+ way fork of OSM? > Hmm, not that I know of. But maybe you're right. What would you consider a 300+ way fork (that you believe I was suggesting)? I certainly don't suggest having different databases. The important, worldwide criteria that I'd expect is this: *Motorways are exclusive to motor vehicle traffic. *trunks are the most important roads in a geographic area which aren't motorways. *primary, secondary, and tertiary roads are, in that order, less important than trunk roads *residential roads are generally used primarily for non-through-traffic *a road which connects between a primary and a tertiary or residential road, which is not itself a residential road, is probably a secondary road However, this is pretty much all subjective. So I think we need to adopt objective standards, on a state by state basis. Alternatively, we should just call everything that isn't a motorway a road, tag it with the appropriate features, and use some automated process to figure out the expected relative volume of traffic on a road in order to color it appropriately.
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