Travel Mapping

Highway Data Discussion => Updates to Highway Data => Topic started by: the_spui_ninja on December 23, 2021, 02:11:10 pm

Title: NE: L56D extends south of I-80 by about 500 feet
Post by: the_spui_ninja on December 23, 2021, 02:11:10 pm

Normally I wouldn't bother with this, but NE put the "End" (https://www.google.com/maps/@40.9998351,-100.3763653,3a,15y,185.48h,90.3t/data=!3m6!1e1!3m4!1seRWnZjYhaJMlvcGWrjlo6w!2e0!7i13312!8i6656) sign right where the concrete pavement ends, and the highway logs bear this out (page 409 in the 2021 pdf). If you don't want to extend it 0.1 miles down, I wouldn't be heartbroken, but I thought I should at least bring it up.

Title: Re: NE: L56D extends south of I-80 by about 500 feet
Post by: Duke87 on December 24, 2021, 12:21:00 am

Note also the presence of this sign (https://www.google.com/maps/@41.000513,-100.3763666,3a,15.9y,67.8h,85.9t/data=!3m6!1e1!3m4!1s6I5idYa9DlWdTPDtdiyGUg!2e0!7i13312!8i6656), explicitly stating L56D goes in both directions from the I-80 eastbound offramp.

From my perspective, the end sign alone is eh whatever but this is solid confirmation the mapped end should be south of I-80.

Title: Re: NE: L56D extends south of I-80 by about 500 feet
Post by: the_spui_ninja on December 24, 2021, 11:00:43 am

Quote from: Duke87 on December 24, 2021, 12:21:00 am

Note also the presence of this sign (https://www.google.com/maps/@41.000513,-100.3763666,3a,15.9y,67.8h,85.9t/data=!3m6!1e1!3m4!1s6I5idYa9DlWdTPDtdiyGUg!2e0!7i13312!8i6656), explicitly stating L56D goes in both directions from the I-80 eastbound offramp.

Oh yeah forgot about that; another thing that just seems silly.

Title: Re: NE: L56D extends south of I-80 by about 500 feet
Post by: yakra on December 24, 2021, 04:37:25 pm

*sigh* Oh boy. There seem to be a whole slew of these.
See also NE: Operation Log Book 2020 (https://forum.travelmapping.net/index.php?topic=4498)
Those with I-80 interchanges should get checked out first.

Title: Re: NE: L56D extends south of I-80 by about 500 feet
Post by: the_spui_ninja on December 24, 2021, 07:14:41 pm

Looking through it quickly, the only ones that don't extend more than 0.01 and 0.02 miles south of I-80 (i.e. just barely past the EB on/off ramps) are L17J, L24B, L51B, L56C, L56D, L80G, and L80H. Of these, only L56D seems to be signed as continuing beyond I-80 based on a quick GMSV perusal (wasn't really paying attention when I clinched all these earlier).
Hopefully that helps narrow the focus and minimize the necessary work.

Title: Re: NE: L56D extends south of I-80 by about 500 feet
Post by: yakra on December 24, 2021, 07:24:13 pm

Many of these could be edge cases for where exactly 1PPI kicks in.
As Duke87 noted, arrows at the offramps may help in determining whether to change or go no-build.