UNIQUE_SLASH_SUFFIX
pa.pa982trkder.wpt: US22/119_W>-US22/119
Yup, that's what to do in these cases usually.
pa.us019.wpt: US6/322_W>-US6/98 (I liked including PA 98 in the label over going plain US6_W or debating whether I should go with US6/322 or consider US6/322 a FP.)
State route over a US route?
6 & 322 split together; this is the one place they do so. Recommend plain
US6/322:
https://travelmapping.net/devel/manual/wayptlabels.php#avoidsuffixhttps://travelmapping.net/devel/manual/wayptlabels.php#identicalmultiplexhttps://travelmapping.net/devel/manual/wayptlabels.php#plexnosuffixEXTRANEOUS_EXIT
pa.us019.wpt: I-76(28)>-I-76/79 (to match I-80/476 on PA 940)
pa.us040.wpt: I-70(15)>-I-70 (It is hard for me to believe that I-70 and US 40 only have one direct interchange with each other in PA. The I-70 Exit 6 interchange is actually with Old National Pike.)
pa.us209.wpt: I-84(53)>-I-84 (probably used I-84(53) copied over from US 6)
Thumbs up
The rest of these are FPs. Most of them are due to concurrencies with interstates minus the following two exceptions:
*Takes a look at the rest* Agreed, although...
PA390TrkHaw: PA390_S -> PA390
PA715TrkSTa: Gott im Himmel PENNDOT WUT
US220BusBed: The only non-plex here. A special case that happens sometimes. What would otherwise be
I-99(3) becomes
US220_N because parent route, arguably eliminating the need to disambiguate plain
I-99 from anything else. Rather similar to the next examples; moving on to those...
pa.pa435.wpt:I-380(13) (PA 435 has two interchanges with I-380.)
pa.pa940.wpt:I-80(273) (PA 940 more or less has two interchanges with I-80. The second involves a connector road that connects to I-476 to the north and I-80 to the south without a name. I think it is best to leave this as-is.)
435: One interchange is with two concurrent interstates: 84/380.
I-84/380 is appropriate here.
940: One interchange... (two trumpets? a double trumpet?) touch down at one point.
I-80/476 is appropriate here.
So what of the other points, then? They could be plain
I-## labels, with no other points at just that route to disambiguate from.
Less with Interstates & exit numbers and more with US/state routes & directional suffixes that I can remember, this was a convention Tim was pushing by the late days of CHM -- if KS666 intersects solo US37 at one point and US37/38 at another, they could be labeled
US37 and
US37/38, no need for directional suffixes. Not sure how widely this caught on though.
So yes, it's an option for Interstates, though as you may recall, one I find ugly enough to have avoided on MA12.
Don't know what I'd do if PA were my state, but it's possible I'd decide it's OK as-is, same as you've done.