Travel Mapping

Highway Data Discussion => Updates to Highway Data => Solved Highway data updates => Topic started by: Markkos1992 on February 12, 2024, 11:11:53 am

Title: IL: I-180
Post by: Markkos1992 on February 12, 2024, 11:11:53 am

https://wiki.aaroads.com/wiki/Interstate_180_(Illinois) (https://wiki.aaroads.com/wiki/Interstate_180_(Illinois))

Exit numbers should be added at every point with the exception of IL29 and I-80.

Title: Re: IL: I-180
Post by: rickmastfan67 on February 12, 2024, 01:20:14 pm

StreetView confirms exit numbers have been posted since at least June '18.

Also, route should 'probably' be flipped to match the exit numbers, even though the route is posted as N/S, the MM's seem to be E/W, with 1 being @ I-80.

Title: Re: IL: I-180
Post by: Duke87 on February 13, 2024, 12:45:40 am

Quote from: rickmastfan67 on February 12, 2024, 01:20:14 pm

Also, route should 'probably' be flipped to match the exit numbers, even though the route is posted as N/S, the MM's seem to be E/W, with 1 being @ I-80.

That's not implying E/W, that's just following the MUTCD for 3di spurs which says exit numbers should increase heading away from the parent interstate regardless of direction.

Title: Re: IL: I-180
Post by: Highway63 on February 16, 2024, 01:40:02 am

I'm not entirely sure I'm a fan of that MUTCD rule although it certainly does make things easier in some locations. I guess I should be really, really glad that I-380 goes northward from I-80.  ;D