On Sun, Jul 12, 2020 at 11:48 AM Robert Skedgell <r...@hubris.org.uk> wrote:
> On 12/07/2020 15:48, Mike Thompson wrote: > > Hello, > > > > According to the wiki[0], it seems that the network tag has different > > meanings and possible values based upon if it is applied to a route > > relation where route=road vs. route=bicycle/mtb/foot/etc. > > > > If I am understanding this correctly, when route=road, network= the > > specific network that the road is part of, for example, a US Interstate > > would be US:I[2] > > > > For bicycle/mtb/foot etc. it seems that the network tag indicates the > > scope of the network, for example a nationwide network cycling network > > would network=ncn[1] > > > > 1) Why can't the network tag have consistent meaning across all route > > types? For a mapper, as well as a data user, this is confusing. > > 2) The scope of a cycling/walking/etc. network should be evident from > > the geographic extent of its members, so isn't network=icn/ncn/etc. > > redundant? In any event, if the specific network is specified, it will, > > in most cases, also indicate the general scope. > How do you know the scope of a network if there is no tag to indicate > that member routes belong to it? > > The very short NCN route 425 in south-east London is network=ncn because > it's a Sustrans route. THe scope of the route is very local, but the > scope of the network is national. Without the network tag, how would a > renderer or router determine whether it was an ncn, rcn or lcn? All > three exist in Greater London. > https://www.openstreetmap.org/relation/4247567 > Ideally? Make it work like the route=road networks. "network=UK"
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