old alignments and where they exist

[NE2]

The all-Interstate corridor between the Mississippi and the Pacific with the largest percentage of non-frontage paved old alignments is 80-84-82-90 at 78.7%, with 90 in second at 77.1%. The smallest percentage is 54.5% on 10-8, and second smallest is 55.4% on 70-25-80. Route 66 is somewhere in the middle with 71.4%, and 80 all the way (mostly Lincoln Highway) has 61.7%.

In other words, if you want to see old alignments, go to Seattle.

(blue=frontage, red=none)

I'm trying to do a quick KML export into the Goog of the data I'm working with. I don't know if there's any easy way to set colors based on attributes (or do two consecutive uploads in different colors). There also seems to be a limit on number of lines. Anyone know if there's a better way to do something like this? http://maps.google.com/maps/ms?msa=0&msid=205162504853608412223.0004e053336117f91cab8

[NE2]

No comments on the map? You guys suck.

[agentsteel53]

there is definitely more old 66 in AZ-NM than that big long red streak to the east of Flagstaff.

[NE2]

there is definitely more old 66 in AZ-NM than that big long red streak to the east of Flagstaff.

Zoomed in on that area (OSM background):

What am I missing?

[Brandon]

For starters,

You're missing parts of US-66 along what is now I-55 in Illinois between Bloomignton and Chicago.  There are frontage roads along I-55 from Veteran's Pkwy (Exit 167) in Normal all the way to the Tri-State Tollway (I-294) in Indian Head Park.  Most of them were parts of US-66 - BL-55 to IL-53 (Gardner), IL-129 to IL-59, and IL-126 to I-294.

I'm sure there's a whole lot more.

[NE2]

For starters,

You're missing parts of US-66 along what is now I-55 in Illinois between Bloomignton and Chicago.  There are frontage roads along I-55 from Veteran's Pkwy (Exit 167) in Normal all the way to the Tri-State Tollway (I-294) in Indian Head Park.  Most of them were parts of US-66 - BL-55 to IL-53 (Gardner), IL-129 to IL-59, and IL-126 to I-294.

I'm sure there's a whole lot more.

Zuh? I have those. Green means an old alignment exists. Red means there's none. (Incidentally, I'm considering IL 171 as an old alignment for Chicago-Joliet, even though it was technically never US 66.)

[agentsteel53]

part of that was due to the red blowing away the other two colors in the top zoomed-out image, but I believe there are a few here:



they may very well all be dirt, or they aren't all 66, but I feel like I've driven most of these with the intent of attempting to find 66 alignments.

[NE2]

Oh. Those are discontinuous, meaning you have to turn around and drive the red part of I-40 anyway.

[agentsteel53]

Oh. Those are discontinuous, meaning you have to turn around and drive the red part of I-40 anyway.

got it.  I did not know that was one of your original criteria.

[Brandon]

For starters,

You're missing parts of US-66 along what is now I-55 in Illinois between Bloomignton and Chicago.  There are frontage roads along I-55 from Veteran's Pkwy (Exit 167) in Normal all the way to the Tri-State Tollway (I-294) in Indian Head Park.  Most of them were parts of US-66 - BL-55 to IL-53 (Gardner), IL-129 to IL-59, and IL-126 to I-294.

I'm sure there's a whole lot more.

Zuh? I have those. Green means an old alignment exists. Red means there's none. (Incidentally, I'm considering IL 171 as an old alignment for Chicago-Joliet, even though it was technically never US 66.)

IL-171 was never US-66.  It was, however, IL-4 then IL-4A.  IL-4 was one of those split routes.  Illinois had a few of those in the early days, the longest lasting being IL-113 (one side of the river later became IL-102).  IL-4 was split into IL-4 and IL-4A shortly after designation.

I thought the colors were just red and blue.  Thanks for the correction.

[NE2]

Speaking of those split routes, any idea how the "Chicago Motor Club Routes" worked? They seem to match the SBI numbers except with random suffixed alternates (e.g. 5E, 5H): http://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~201670~3000647:Commercial-Atlas-of-America--Rand-M

[Brandon]

Speaking of those split routes, any idea how the "Chicago Motor Club Routes" worked? They seem to match the SBI numbers except with random suffixed alternates (e.g. 5E, 5H): http://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~201670~3000647:Commercial-Atlas-of-America--Rand-M

I think these are the original SBI routes.  I've never seen a map this detailed of the state from the pre-US highway era.  The SBI routes, 1 through 46, were commissioned in 1918 and numbered in order of the bonds issued in the General Assembly.  I don't know how early they were signed, but this looks like they at least were signed by 1924.  SBI routes 47 through 185 were commissioned in 1924, so I think this is a map that pre-dates the commissioning of those.  As for the 5E, 5H, etc, some of the SBI routes had branches with letter suffixes.

Nice find!

[NE2]

The 1924 official state map was also made by Rand McNally, but has normal state outline shields (and lacks the suffixed routes). 1922 has no numbered routes.