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21
Updates to Highway Data / London area graph oddities/coords
« Last post by yakra on July 16, 2018, 08:23:59 pm »
Should A4200/A40Lon be moved to the same coords as A401@A4200?
Would A400/A40Lon be better off centered @ New Oxford & Earnshaw?
The Marylebone Flyover area looks a bit oogy, but *shrug!*
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In-progress Highway Systems & Work / Re: usanyp: New York Parkways
« Last post by yakra on July 16, 2018, 05:43:41 pm »
Had I known then about westbound 27 via Church Ave, I may have gone about things differently...

Proposed:
A "median" point at the Expy & Caton Ave, while not my first choice for an Exit 5 point location from the standpoint of mapping the Prospect Expy, looks good from a graphing perspective. It does a good job of capturing where NY27 jumps off one road and onto another.
EB passes thru here on the overpass, via 5th St and Caton Ave.
WB passes thru here on the underpass, via Church Ave and the Expy.
It helps me to think of the ramp/street geometry here as a bit of a nonstandard parclo. :)
It avoids extending Ocean Pkwy all the way up to Exit 5 @ Fort Hamilton Pkwy to gain a graph connection, which I rather dislike.


...Thoughts?
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In-progress Highway Systems & Work / Re: usanyp: New York Parkways
« Last post by yakra on July 16, 2018, 05:43:36 pm »
Normally I try to avoid tracing a route via one side of a couplet, though I make the occasional exception (same link as above). Instead, I'll often do some variation of "cutting across the diagonal".
Not liking the sharp angle, and finding the westbound routing confusing, I made some edits in 2016...

Current:
At the time, Exit 6 looked like it was just included in order to have the full length of the Prospect Expy.
Mistakenly assuming the WB routing to be via Park Circle, I cut directly from ConIslAve to Exit 5, which I left in place on "One Point Per Interchange" grounds.
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In-progress Highway Systems & Work / Re: usanyp: New York Parkways
« Last post by yakra on July 16, 2018, 05:43:29 pm »
Where NY27 joins/leaves the Prospect Expy, there's a bit of a "reverse couplet", where traffic going one direction is to the left of traffic going the other.
Compare NY16's north end (brown, bottom right) in Buffalo.

Original:
NY27 as it originally existed on TM followed the westbound half of the couplet.
FWIW, NYSDOT inventories NY27 in the eastbound direction, so this isn't what we see in the TDR, TDV, or shapefiles.
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Updates to Highway Data / Re: NJ: I-80 WB at Hainesburg Rd (west of Exit 4)
« Last post by yakra on July 16, 2018, 04:22:01 pm »
OK, you've convinced me. :)
If I were to declare that NJ I-80 "is" an exit-numbered highway for purposes of such fudging, and that, say, OK351 "is not", where & how exactly would I draw the line? Meh. Nope.

HaiRd is HaiRd.

The U-Turn interchange should be I-80_U:
Quote from: the manual
Use a _U suffix for interchanges that are nothing more than a U-turn ramp. If more than one is needed for the same highway, use _U1, _U2, etc.

The recently-added 1A waypoint should thus also be relabeled, to OldMineRd.
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Other Discussion / Re: Project Statistics
« Last post by michih on July 16, 2018, 12:46:58 pm »
We have 216 users now. 16 new users have joined in the last 7 weeks.

Just noticed we have 200 users now.
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Other Discussion / Re: Project Statistics
« Last post by Jim on July 16, 2018, 07:55:32 am »
We've added around 8 or 10 new users in the last week.  Easily the largest growth since the initial move from CHM.  Typically I'd see a new person once every couple weeks or so.
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I'm not certain we should be including historic route segments that are only signed because of a guy on a one-man crusade.
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In-progress Highway Systems & Work / Re: usaush (United States Historic US Routes)
« Last post by Duke87 on July 15, 2018, 09:45:51 pm »
Generally yes, the photos of Historic US 20 signs on Bryan Farr's website in NY and MA are his own mock-ups, not official signage.

That said - I can confirm that as of today the Chester-Huntington segment of Historic US 20 is actually signed! That is the only sign for it, at the western end, but there is one. So, US20HisHun can stay.

Also checked out the Sturbridge segment, and found zero signs on it. So, US20HisStu definitely needs to be deleted.

The other segments remain suspect (and I still think should be deleted) given that we have no evidence of signage other than Bryan Farr's photos which by his own admission are of signs he temporarily put up for demonstration purposes.
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Updates to Highway Data / Re: MD: US 40 CanAve point in Hagerstown
« Last post by mapcat on July 15, 2018, 09:16:59 pm »
It's probably for Cannon Ave. Historical maps make it look like Cannon Ave could have been a routing for MD 64 in the past. I'd still combine it with MD 64, but note it in the updates in case it really matters to JamesMD.
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