[Talk-us] Network tag Re: Highway Shield Rendering

John F. Eldredge john at jfeldredge.com
Wed Apr 4 17:54:14 BST 2012

Nathan Edgars II <neroute2 at gmail.com> wrote:

> On 4/4/2012 12:14 PM, Craig Hinners wrote:
> > Nathan Edgars II<neroute2 at gmail.com>:
> >> It seems that many people see the network tag as not representing a
> >> network but a shield design. Does this sound accurate?
> >
> > No, because, where shield designs differ by agency for the same
> logical
> > network classification, the network tag does not change, despite the
> > differing shields.
> >
> > One of many examples: Maryland uses a unique green-on-white shield
> for
> > US Business routes, but those roads still get tagged as
> > "network=US:US:Business", not "network=US:US:Business:MD" or
> somesuch.
> > The renderer would have to detect which agency the road is "in", and
> > render the agency-specific shield accordingly.
> So your belief is that there is such a thing as a "U.S. Highway 
> Business" network, despite AASHTO considering business routes to be
> part 
> of the main U.S. Highway network?
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You just answered your own question.  The business routes are part of the main U.S. highway network, rather than making up a separate "U.S. Highway Business" network.

John F. Eldredge --  john at jfeldredge.com
"Reserve your right to think, for even to think wrongly is better than not to think at all." -- Hypatia of Alexandria

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