Highway Data Discussion > Updates to Highway Data

MO/IL: I-64 Exit Revisions

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Markkos1992:
1.  5 should be 4B.  4 could be 4A.

2.  8 should be 7.  (also affects US 50)

3.  A point is needed for this interchange (Exit 21).  According to Wikipedia, it was opened in 2017.

Side note:  For IL 3,  I think that I-55(2C) should be I-55(3).  Looking at the I-55 and US 40 labels here, this seems a lot more complicated than it should be in theory.  Maybe go 3A for I-55, and then I-55(3A) for US 40 and IL 3.  Being on this AZ Trip, I do not have tons of times to ruminate on this at the moment.

rickmastfan67:

--- Quote from: Markkos1992 on September 15, 2021, 08:49:04 am ---1.  5 should be 4B.  4 could be 4A.
--- End quote ---

That changed from 5 to 4B sometime between Oct '13 & July '15.  Same time frame with the 4 -> 4A as well.

Markkos1992:
It looks like 28C should be 28B. 

Also what would be the best solution for FortyDr?  Maybe just stick with 40Dr?

I also saw something on the I-64 in MO Wikipedia about Exit 38B, but I am unsure how to handle it and if we should be handling that now.

Highway63:
Here's what it looks like on GMSV:

WB 40B I-44; 40A Stadium/9th; 39 Market/21st; 38B Market 3000 West; 38A Forest Park; no 37

EB 37A Market/Bernard; 37B Grand; 38A Jefferson; 38B Chestnut/20th; 39A 14th; 39B Stadium/11th; 40 6th.

WB 38B is actually west of EB 38A, and I had to make the latter a 38C to separate the points. That one I'm inclined to keep, even though there is no 38C in the field, just so I don't have to merge those points.

So, here's what I am thinking:

What I have labeled as 38D should be turned into 39A. What I have labeled as two discrete points of 39C and 40A should be combined into "40" centered at 8th Street, splitting the difference between the exits to 9th (WB #40A) and 6th (EB #40). Then, 40C should be turned into 40B, which is what's seen on the Poplar Street Bridge exiting to I-44 and there is no EB companion.

That would eliminate non-existent letter suffixes except for 38C, for reasons described above. Unless I call it "I-64(38A_EB)"? Bleah.

Highway63:
I-64: Changing 4->4A, 5->4B, 8->7. Adding 21 (Rieder Road).

US 50: Changing I-64( 8 )->I-64(7).

I-55/64/US 40: Keep the 1A/1B designations even though it's signed as 1 in both directions, because of the large space between the WB and EB exit points. Change 2->2A (Eads Bridge/3rd St). NEW point labeled 2C (signed as MLK Bridge) to the WB exit/EB entrance point of that. Current location labeled 2C on I-55/US 40/IL 3, the new I-64/70 junction, needs to become 3, as you say. (Marked as 3 on I-64 already.) Current location labeled 3 on I-55/US 40 becomes 3C.

The latter set might break/move a few people's points, but I think that's unavoidable.

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