Play the Game-How Are These Cities Related?

[2Co5_14]

This game is broken into parts-
The first question is: how is the following pair of cities related?

Houston & Chicago 

(Of course, this relation has to do with roads.)

If I don't get a correct response after a while, I'll post an additional pair of cities with the same relationship.
After someone gets the correct answer, I'll continue with Part 2 of the game...


(See reply #26 for the latest updates.  Reply #16 got the correct answer to Part #1)

[golden eagle]

They have toll roads?

[2Co5_14]

That's true, but not the answer I was looking for.

I don't know if this explanation will clear things up or not, but here goes:

There are many pairs of cities/towns in the USA that are also related to each other (using the same general logic), but each pair has a specific relationship that is not shared by any other pair.

[Alps]

Both have a very elongated junction where two highways run next to each other without multiplexing?  (Though one might add Rochester to that list.)

[2Co5_14]

Good guess, but not what I'm looking for. 
Keep trying!

[SSOWorld]

they both have a highway numbered 90 and a highway numbered 290. (TBH I can't see what it is)

[jdb1234]

They both have a highway numbered 45.

[Alps]

Both have privately run toll roads?  Cintra runs the Skyway in a joint consortium and apparently is constructing the extension of TX 130.

[2Co5_14]

Responses so far...

Highways 90 & 290 are also found in Buffalo, NY and Worcester (Auburn), MA. (Any other places?)

Highway 45 exists in numerous locations as well.

There are other locations with private toll roads. (Orange County, CA; Dulles Greenway, VA, others?)


It looks like it's time for Clue #2   

The next pair of cities has the same type of relationship as Houston & Chicago (although the exact connection is unique for each pair)

Kansas City, MO & Louisville, KY


Good luck!

[Alps]

All the cities so far appear to have two beltways.

[Hellfighter]

Both cities have 3 2-d interstates intersect?

[FLRoads]

Okay, here are my guesses on how these cities might be related:

Both Chicago and Louisville have multiplexes with major transcontinental U.S. Highways (meaning one route ending with 0 and the other ending with 1). Chicago has the multiplex of U.S. 41 and U.S. 20 while Louisville has the multiplex of U.S. 31W (technically a branch of U.S. 31) and U.S. 60. Houston and Kansas City have similar multiplexes, but with transcontinental interstates (meaning one ending in 0 and the other ending in 5), namely Interstate 35 and Interstate 70 in Kansas City and Interstate 45 and Interstate 10 in Houston.

After reading all the other guesses, this is what I can come up with. It might be a stretch, but after all I am thinking of this late at night 

[Scott5114]

Lots of cities have transcon Interstate multiplexes though...I-40 alone concurs with I-35, I-55, I-65, I-75, and I-85.

[FLRoads]

That is true, but since nobody else has come up with the correct answer I just figured I would throw that specific idea into the mix...

[njroadhorse]

Is it that each pair's x5's are exactly 20 apart from each other?

[2Co5_14]

Nobody's gotten the right answer yet, but your guesses are on the right track...   

I'll give you Clue #3 now:

Seattle, WA & Jacksonville, FL

Compare this pair to the previous ones:

Houston, TX & Chicago, IL
Kansas City, MO & Louisville, KY

[xonhulu]

Is it that all the city pairs share 2 different interstate pairs that add to 100?

Houston/Chicago: 45 + 55 = 100, 10 + 90 = 100

KC/Louisville: 29 + 71 = 100,  35 + 65 = 100

Seattle/Jacksonville: 90 + 10 = 100, 5 + 95 = 100

[SSOWorld]

Is it that all the city pairs share 2 different interstate pairs that add to 100?

Houston/Chicago: 45 + 55 = 100, 10 + 90 = 100

KC/Louisville: 29 + 71 = 100,  35 + 65 = 100

Seattle/Jacksonville: 90 + 10 = 100, 5 + 95 = 100

hah nice find!

[2Co5_14]

Reply #16 by xonhulu:

Is it that all the city pairs share 2 different interstate pairs that add to 100?

Houston/Chicago: 45 + 55 = 100, 10 + 90 = 100

KC/Louisville: 29 + 71 = 100,  35 + 65 = 100

Seattle/Jacksonville: 90 + 10 = 100, 5 + 95 = 100


Congratulations - you got it! 

Now for Part #2 of the game...

How many more of these city/town pairs can you find?
See if you can get all 23 (or even more, if I missed any.  ) 

Note: the locations of the junctions might also be small towns, and in one case, the middle of nowhere.  Some of the locations may be repeated with a different pair.  Each pair should have an Interstate junction where each highway number has a counterpart in the other location that adds up to 100.  (For example, Seattle has the I-5/I-90 junction and Jacksonville has the I-95/I-10 junction. 5+95=100 and 90+10=100.)

[jdb1234]

Birmingham, AL and Des Moines, IA is one pair. 

65+35=100
80+20=100

[jdb1234]

Also Mobile, AL and Albert Lea, MN is a pair

65+35=100
10+90=100

[Hellfighter]

Grand Rapids and Orlando!

96 + 4 = 100

[OracleUsr]

Savannah, GA/Portland, OR:  (I-84 + I-16 = 100, I-5 + I-95 = 100)
Around Sacramento, CA/Florence, SC (I-80 + I-20 = 100, I-5 + I-95 = 100)
near Boston, MA/Los Angeles, CA (I-95 + I-5 = 100, I-10 + I-90 = 100)
Mobile, AL/Albert Lea (or somewhere around there), MN (I-65 + I-35 = 100, I-90 + I-10 = 100)  (CRUD, JDB beat me to this one)
Tuscon, AZ/Syracuse, NY:  (I-81 + I-19 = 100, I-90 + I-10 = 100)

That's 4, not counting the one already entered

[xonhulu]

Geez, there are 20 more?  I'll give it a shot:

1.  Portland (OR)/Savannah: 5 + 95, 84 + 16

2.  Dallas/Chicago: 45 + 55, 20 + 80

3.  Dallas/Gary: 35 + 65, 20 + 80

4.  Gary/San Antonio: 90 + 10, 65 + 35

5.  San Diego/Petersburg (VA): 5 + 95, 15 + 85

6.  Toledo (OH)/Las Cruces: 90 + 10, 75 + 25

7.  Syracuse/Tucson: 90 + 10, 81 + 19

8.  Cheyenne/Atlanta: 80 + 20, 25 + 75

9.  Salt Lake City/Atlanta: 80 + 20, 15 + 85

10.  Baton Rouge/Albany (NY): 10 + 90, 12 + 88

11.  Dallas/Indianapolis: 30 + 70, 35 + 65

12.  Des Moines/Birmingham: 35 + 65, 80 + 20

13.  Albert Lea/Mobile: 35 + 65, 90 + 10

14.  Dallas/St. Louis: 30 + 70, 45 + 55

15.  Quad Cities/Columbia (SC): 80 + 20, 74 + 26

16.  Denver/Chattanooga: 76 + 24, 25 + 75

17.  Sacramento/Florence (SC): 5 + 95, 80 + 20

18.  Los Angeles/Boston: 10 + 90, 5 + 95 (dunno why this one didn't occur to me earlier)

All right, this is giving me a headache, guess I'm coming up two short.
(While typing this, looks like some of you got a few of these before me, but I'm too lazy to edit the list now.)

Oh, yeah and what did I win for getting part #1 right?  I could use a plasma TV...

[jdb1234]

Lake City, FL and Buffalo, WY:

10+90=100
75+25=100