On 2015-01-19 01:30, Minh Nguyen wrote:
On 2015-01-19 00:50, Paul Johnson wrote:
Are they actually separate networks, though? Just because there's more
digits doesn't a different network make.
What distinguishes the various networks that a given agency maintains?
For our purposes, I think we're most interested in:
1. Significant differences in signage (signage type, shield designs,
bannered routes)
2. Potential overlaps in numbering
Given the extra digits, #2 is unlikely, but the quadrant routes are
signed very differently than ordinary state routes. It looks like
they're only indicated as secondary information on out-of-the-way
mile-markerish signs. (It also appears that conventionally one is
prefixed "PA" while the other is prefixed "SR".)
For example, here's a directional sign for PA 443:
https://www.flickr.com/photos/dougtone/4176740362/
There's a quadrant route number on the marker beneath it. It's the
four-digit number next to "SR", above "210". Unlike "PA 443", "SR 3009"
is inappropriate for how OSM clients use the `ref` tag. It might be
worth mapping inasmuch as bridge inventory numbers are worth mapping,
but I agree with James that we should keep mappers from conflating the
two systems. And if the solution starts with `ref:penndot`, there's no
need to square that with route networks in other states. :-)
Forgot to mention: "3009" was just a guess based on [1]. My vision isn't
*that* good.
[1] https://en.wikipedia.org/wiki/PA_443
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