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Author Topic: Chicagoland Control Cities  (Read 15598 times)

mukade

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Re: Chicagoland Control Cities
« Reply #50 on: January 31, 2013, 08:55:12 PM »

Assuming all control cities should be in another metro area (unlike Aurora which is in Chicagoland), the following table shows what could and what are used if they used actual cities. I combined South Bend and Elkhart metro areas because they are adjacent. As for the Quad Cities, Davenport, not Moline, is far and away the largest city.

RankCityPopulationMilesUsed ByRoute(s)
13Detroit4,285,832238INDOTI-94 E
19St. Louis2,817,355259IDOTI-55 S
35Indianapolis1,778,568263INDOTI-65 S
39Milwaukee1,562,21686IDOT, ISTHAI-94 N
41Memphis1,325,605481IDOTI-57 S
82Toledo650,266212INDOT, IDOTI-80 E
89Madison576,467124(not used)I-90 W
150*South Bend-Elkhart517,62974(not used)I-80/I-90 E
134Davenport-Moline381,342148IDOTI-80 W
145Rockford348,36077ISTHA, IDOTI-90 W
192Champaign-Urbana232,336123(not used)I-57 S
204Springfield211,547177(not used)I-55 S
210Lafayette203,608108(not used)I-65 S
324Kankakee113,69852(not used)I-57 S
- Dekalb68,54555ISTHAI-88 W
« Last Edit: January 31, 2013, 10:16:10 PM by mukade »
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Revive 755

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Re: Chicagoland Control Cities
« Reply #51 on: January 31, 2013, 10:06:33 PM »

^ Two comments/corrections:

* Rockford is used by both IDOT and ISTHA; IDOT uses Rockford for I-290, at least once on I-355, and for I-90 at the I-290/IL 53 interchange.

* For some reason Rock Island-Moline gets used outside of Chicagoland instead of Davenport-Moline.
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mukade

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Re: Chicagoland Control Cities
« Reply #52 on: January 31, 2013, 10:22:53 PM »

I agree on the 3dis, but was only including the intercity routes.

What you said jogged my memory on I-90 - the Kennedy has signs for Rockford so I updated the table.

Moline is used on I-80 I believe, but I added Davenport because that is the true major city in the Quad Cities.

I do wonder why South Bend is not a control city on ITR. It is certainly big enough.
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Brandon

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Re: Chicagoland Control Cities
« Reply #53 on: January 31, 2013, 11:03:05 PM »

^^^ Kankakee is used as a secondary control at the exits south of I-80 on I-57.

Moline-Rock Island gets used on I-80 from Joliet west as a secondary control for the same reason East St Louis is used on I-55 from Springfield south - it's within the state.

Madison doesn't get used because Rockford comes first.  Madison is used from Rockford north.

Champaign-Urbana isn't used because Kankakee comes first as a secondary control.

No point to using Springfield as a secondary control when Joliet and Bloomington come before it.
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thenetwork

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Re: Chicagoland Control Cities
« Reply #54 on: February 01, 2013, 11:38:11 AM »

Does the Ohio Turnpike actually enter Toledo, or is it another case of I-70 in Dayton and I-79 in Pittsburgh?

It's about as close to a YES as you can get  https://maps.google.com/maps?q=google+map+toledo+ohio&ll=41.591888,-83.648615&spn=0.036975,0.104628&oe=utf-8&client=firefox-a&hnear=Toledo,+Lucas,+Ohio&gl=us&t=m&z=14.

Technically, The border of Toledo runs along the median of the Turnpike roughly from I-475/US-23 on the western edge to the Maumee River on the east.  So in answer to your question, EASTBOUND I-80/90 never enters Toledo, but the WESTBOUND I-80/90 lanes do!!! 
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Brandon

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Re: Chicagoland Control Cities
« Reply #55 on: February 01, 2013, 12:58:32 PM »

Does the Ohio Turnpike actually enter Toledo, or is it another case of I-70 in Dayton and I-79 in Pittsburgh?

It's about as close to a YES as you can get  https://maps.google.com/maps?q=google+map+toledo+ohio&ll=41.591888,-83.648615&spn=0.036975,0.104628&oe=utf-8&client=firefox-a&hnear=Toledo,+Lucas,+Ohio&gl=us&t=m&z=14.

Technically, The border of Toledo runs along the median of the Turnpike roughly from I-475/US-23 on the western edge to the Maumee River on the east.  So in answer to your question, EASTBOUND I-80/90 never enters Toledo, but the WESTBOUND I-80/90 lanes do!!! 

That's not quite accurate.  Yet again, Google Maps gets it wrong.  Technically, from the City of Toledo zoning maps, the Turnpike doe not enter the City of Toledo at all.  The municipal corporate limits are along the north Turnpike ROW.

From west to east:

http://ci.toledo.oh.us/Portals/0/Planning%20Docs/zoning%20maps/Toledo-232.pdf
http://ci.toledo.oh.us/Portals/0/Planning%20Docs/zoning%20maps/Toledo-148.pdf
http://ci.toledo.oh.us/Portals/0/Planning%20Docs/zoning%20maps/Toledo-142.pdf
http://ci.toledo.oh.us/Portals/0/Planning%20Docs/zoning%20maps/Toledo-110.pdf
http://ci.toledo.oh.us/Portals/0/Planning%20Docs/zoning%20maps/Toledo-43.pdf

It's like the question, "Does I-80 fully enter Kendall County, Illinois?"  In that case, according to the GIS data, that answer is yes:
http://gis.co.kendall.il.us/pbzviewer/ - use the 2003 or 2010 aerials.  Google Maps, as nice as the GSV is, is not anywhere as near as accurate as data actually coming from a governmental taxing body.
« Last Edit: February 01, 2013, 01:14:28 PM by Brandon »
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hobsini2

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Re: Chicagoland Control Cities
« Reply #56 on: February 01, 2013, 07:27:47 PM »

Assuming all control cities should be in another metro area (unlike Aurora which is in Chicagoland), the following table shows what could and what are used if they used actual cities. I combined South Bend and Elkhart metro areas because they are adjacent. As for the Quad Cities, Davenport, not Moline, is far and away the largest city.

RankCityPopulationMilesUsed ByRoute(s)
13Detroit4,285,832238INDOTI-94 E
19St. Louis2,817,355259IDOTI-55 S
35Indianapolis1,778,568263INDOTI-65 S
39Milwaukee1,562,21686IDOT, ISTHAI-94 N
41Memphis1,325,605481IDOTI-57 S
82Toledo650,266212INDOT, IDOTI-80 E
89Madison576,467124(not used)I-90 W
150*South Bend-Elkhart517,62974(not used)I-80/I-90 E
134Davenport-Moline381,342148IDOTI-80 W
145Rockford348,36077ISTHA, IDOTI-90 W
192Champaign-Urbana232,336123(not used)I-57 S
204Springfield211,547177(not used)I-55 S
210Lafayette203,608108(not used)I-65 S
324Kankakee113,69852(not used)I-57 S
- Dekalb68,54555ISTHAI-88 W

One thing that is not quite correct about the signage on I-90 West. Right at the I-294 North Jct (not indicated at the I-294 South/I-190 Ohare one though), Madison is also used as a control city with Rockford.  The older signs had this too before the change to the new Clearviews.



Also, I believe the reason why Aurora is used as a control city on 88 west is because while it may be in the Chicagoland area, it is far enough away from the city that it is an important destination city (2nd largest city in the state, Naperville being 3rd) for people who live in the West Suburbs. 290 is really only a due west route until it meets with 88 and 294. From there it jumps northwest, which is why Rockford is used on 290 at that junction. I think of it much the same way that NYC signs its control cities with major bridge and tunnel crossings like the Holland Tunnel and George Washington Bridge.
« Last Edit: February 01, 2013, 07:36:19 PM by hobsini2 »
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Re: Chicagoland Control Cities
« Reply #57 on: February 01, 2013, 07:51:31 PM »

Aurora may also be used because until 1974 the Tollway ended there and I think the state control trend began there ,maybe by accident. I think the Tollway just stuck Iowa on after they opened the extension. Dixon maybe be because its the last toll booth and Sterling may be used because its the last IDOT exit.....some agency territory marking
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mukade

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Re: Chicagoland Control Cities
« Reply #58 on: February 01, 2013, 08:25:51 PM »

Yes, the table of cities exercise is really to show the subjectivity/inconsistency/quirkiness of the control cities when they are used. At least with the state names, they are something you can't dispute. I still don't really care for them, however.

If you get into the IDOT "secondary" control cities, it becomes a bigger mess.
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Stratuscaster

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Re: Chicagoland Control Cities
« Reply #59 on: February 01, 2013, 11:00:05 PM »

One thing that is not quite correct about the signage on I-90 West. Right at the I-294 North Jct (not indicated at the I-294 South/I-190 Ohare one though), Madison is also used as a control city with Rockford.  The older signs had this too before the change to the new Clearviews.



Also, I believe the reason why Aurora is used as a control city on 88 west is because while it may be in the Chicagoland area, it is far enough away from the city that it is an important destination city (2nd largest city in the state, Naperville being 3rd) for people who live in the West Suburbs. 290 is really only a due west route until it meets with 88 and 294. From there it jumps northwest, which is why Rockford is used on 290 at that junction. I think of it much the same way that NYC signs its control cities with major bridge and tunnel crossings like the Holland Tunnel and George Washington Bridge.
I've not been on I-90 around O'Hare in quite some time, but I honestly cannot recall ever seeing "Madison" on that sign...ever. I want to say I recall "Elgin - Rockford" - but cannot say for sure.

I always figured I-290 westbound was signed for Rockford because it connects with it's parent that is also signed for Rockford - and perhaps because I-290 was I-90 in a previous life.

I'll agree that Aurora for I-88 is a left-over from the days of Toll-US-30 and when it ended there.
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Brandon

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Re: Chicagoland Control Cities
« Reply #60 on: February 02, 2013, 01:14:16 AM »

I'll agree that Aurora for I-88 is a left-over from the days of Toll-US-30 and when it ended there.

However, Aurora makes a lot of sense currently as it is Illinois's second largest city (it's about to become the second one to break 200,000).
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