Not sure if this belongs in Fictional Highways or General Highway Talk, but here goes.
So we all know that there are many unused numbers that could be assigned to future 2di interstates, such as I-1, I-18 or I-62. My question is, of all the numbers remaining, which number do you think would be the last one to be assigned and why?
This is like an interesting math problem. Except it's not.
0
I-6 is a candidate for never being assigned, unless it would be an intrastate route in Texas. Why? Primarily because there's no place for it to fit into the grid outside of Texas.
Other routes that make no sense, if only because they wouldn't fit into the grid or there's nowhere for them to connect:
13, 18, 21, 23, 28 (unless that or 32 is used for a route connecting Memphis with Huntsville and Atlanta), 33, 34, 36 (which is what the eastern section of I-74 should be designated), 38, 42, 46, 52 (unless there is the unlikely route between Wichita and Denver), 54, 56, 58 or 62.
13, because Americans are a superstitious lot and would rather use something out of the grid.
Quote from: kkt on June 30, 2015, 11:50:25 PM
13, because Americans are a superstitious lot and would rather use something out of the grid.
There is already a US 13. I would think the real reason would be that there would be nowhere in the grid to fit it.
Not sure if we will ever see an I-50 or I-60 either. Normally the I-X0 routes are the longest east-west routes, I-30 being the lone exception.
Quote from: Charles2 on June 30, 2015, 11:48:01 PM
I-6 is a candidate for never being assigned, unless it would be an intrastate route in Texas. Why? Primarily because there's no place for it to fit into the grid outside of Texas.
Other routes that make no sense, if only because they wouldn't fit into the grid or there's nowhere for them to connect:
13, 18, 21, 23, 28 (unless that or 32 is used for a route connecting Memphis with Huntsville and Atlanta), 33, 34, 36 (which is what the eastern section of I-74 should be designated), 38, 42, 46, 52 (unless there is the unlikely route between Wichita and Denver), 54, 56, 58 or 62.
Isn't I-32 supposed to run between Amarillo and Dallas along US 287 or is that some idea that has never been made official?
Interstate 1
I mean, where would you put it?
Quote from: SignGeek101 on July 01, 2015, 12:10:41 AM
Interstate 1
I mean, where would you put it?
On US 101 between LA and San Francisco. That's where I'd put it anyways.
It would have to be 50.
Because 50 is a number that would make sense for a major, cross-country route, but was never assigned for the reason that it would conflict. It wouldn't really work for any other EW interstate existing already. It would have been used right from the start otherwise.
We probably will never see another cross-country interstate built.... certainly not in the part of the grid where an I-50 would go.
Since there are some newer posters in this thread I will link to something I posted in 2013...
Technically there has been an I-50...
https://www.aaroads.com/forum/index.php?topic=10893.msg259480#msg259480
Mike
Quote from: Mapmikey on July 01, 2015, 06:39:29 AM
Since there are some newer posters in this thread I will link to something I posted in 2013...
Technically there has been an I-50...
https://www.aaroads.com/forum/index.php?topic=10893.msg259480#msg259480
Mike
Then there was this (now gone)...... :bigass:
(https://www.aaroads.com/mid-atlantic/district_of_columbia/us-001_nb_at_madison_dr_nw.jpg)
Quote from: Pink Jazz on July 01, 2015, 12:00:26 AM
Quote from: kkt on June 30, 2015, 11:50:25 PM
13, because Americans are a superstitious lot and would rather use something out of the grid.
There is already a US 13. I would think the real reason would be that there would be nowhere in the grid to fit it.
An I-13's place on the grid would likely have it serving Las Vegas, or other Nevada city. The casinos there would not stand such an "unlucky" number in their vicinity, even if it might work elsewhere. I suspect they breathed a sigh of relief when 11 was chosen instead for the Las Vegas-Phoenix corridor.
Interesting responses. My guess is that the last available 2di to be assigned would be an even number in the 50s simply because 50, 52, 54, 56 and 58 are all available. Given how some interstates don't really fit in with the grid anyway, I don't see this stopping I-50. But the lack of other even-numbered roads in the 50s suggests one of these would be last.
I would rule out any of the even numbers between 28 and 48, simply because that is NC's location on the grid...
Given that I-50 sounds nice, to me at least, it may be used for some Congressman's pet project regardless of its location in the grid or length. I'd put I-58, as the last used number on an interstate, just for shits and giggles as the grid between the 30's and 50's makes those numbers difficult (but not impossible if the political pressure is there)
41 (or 2, depending on how you interpret "last") is probably the most statistically likely number to be the last new number that will ever be used.
Quote from: corco on July 06, 2015, 12:53:07 AM
41 (or 2, depending on how you interpret "last") is probably the most statistically likely number to be the last new number that will ever be used.
Isn't 11 newer (as in not signed yet)? And 7 or 9 will probably happen in California.
The only number between 1 and 99 not used for an interstate or US route (I mean, like ever) is 47. So that one.
Quote from: kurumi on July 06, 2015, 01:44:25 AM
The only number between 1 and 99 not used for an interstate or US route (I mean, like ever) is 47. So that one.
I'm not a scholar when it comes to US routes, but is there any particular reason why US 47 doesn't exist?
42.
It would be the ultimate answer :awesomeface:
666 for 3di, but i'd say for 2di 50.
Quote from: corco on July 06, 2015, 12:53:07 AM
41 (or 2, depending on how you interpret "last") is probably the most statistically likely number to be the last new number that will ever be used.
I would doubt that; there are a couple places out there that have candidates for future 2di's such as:
* The Kentucky Parkways not going to be part of I-69 or an I-x69.
* Some corridor in North Carolina
* I-380 and the Avenue of the Saints between US 20 and I-35 - If Iowa keeps have to put interchanges on the Avenue, it won't be that hard to fully upgrade this part
* The corridors Wisconsin may look into converting into freeways over the long term
On a somewhat related note, there is also the possibility of something coming out of the new federal transportation bill (mentioned in the I-69 in Texas thread), which has couple sections that mention looking into upgrading a couple of the NHS routes into interstates: Link (https://www.congress.gov/bill/114th-congress/senate-bill/1647/text#toc-id44fa5e16edd8483499c64790519cb977)
As for my guess for the last 2di number to be used: I-23, with I-1 and I-60 never getting used.
I will concur with I-60 never being used, unless if California wants to upgrade CA 60 like it did CA 238.
The more appropriate place for I-60 would be along I-238, I-580, and I-205. If it weren't for all the national parks in California, there actually would be a path along US 6 towards I-15 in Utah. Of course there will likely never be any justification to build a freeway through that part of Nevada. That routing would be the only way to keep US 60 and I-60 separated, and actually keep I-60 in proper grid sequence. I-60 could even make it as far as Kansas if you find some way to get across all the national parks in Utah and the mountains in Colorado.
I would argue that 1 and 3 are taken due to Alaska, Hawaii, and Puerto Rico, even if they are prefixed with letters. There is of course the proposed I-3 for Georgia and Tennessee.
I actually could see I-13 or I-23 being the last odd number used due to where they fall in the grid. Idaho may grab 13 if it feels travel in the western part of the state needs improvement, and Washington State or Oregon could get involved depending on the routing. Where I-23 would naturally fall, there just aren't many people or even towns in Western New Mexico, Western Colorado, or Central Wyoming. If Montana built anything north of Billings, Montana would have a good case for extending I-25.
Quote from: Zzonkmiles on July 02, 2015, 06:24:20 AM
Interesting responses. My guess is that the last available 2di to be assigned would be an even number in the 50s simply because 50, 52, 54, 56 and 58 are all available. Given how some interstates don't really fit in with the grid anyway, I don't see this stopping I-50. But the lack of other even-numbered roads in the 50s suggests one of these would be last.
I could see US 58 in Virginia being upgraded to an interstate at least from i95 east. Precedent in US74/i74 or 41.
Quote from: Zzonkmiles on July 06, 2015, 06:23:35 AM
Quote from: kurumi on July 06, 2015, 01:44:25 AM
The only number between 1 and 99 not used for an interstate or US route (I mean, like ever) is 47. So that one.
I'm not a scholar when it comes to US routes, but is there any particular reason why US 47 doesn't exist?
39, 47 and 88 have never been assigned. I've never found any official reasoning, I guess it was just decided that there were enough 2- and 3-digit routes to cover the gaps. Much like interstates, it seems some US route numbers went unused in the original 1926 plan to leave space for expansion. And it's just been the case that those three numbers never found a use.
But given the US route system is still active (however slowly), perhaps one day those numbers will get used.
Quote from: Quillz on July 15, 2015, 10:53:41 PM
Quote from: Zzonkmiles on July 06, 2015, 06:23:35 AM
Quote from: kurumi on July 06, 2015, 01:44:25 AM
The only number between 1 and 99 not used for an interstate or US route (I mean, like ever) is 47. So that one.
I'm not a scholar when it comes to US routes, but is there any particular reason why US 47 doesn't exist?
39, 47 and 88 have never been assigned.
Also include 86.
If you count 2di's only, these numbers are still available:
1, 3, 6, 7, 9, 13, 14, 18, 21, 23, 28, 31, 32, 33, 34, 36, 38, 42, 46, 47, 48, 50, 51, 52, 53, 54, 56, 58, 60, 61, 62, 63, 67
Quote from: Henry on July 16, 2015, 11:41:46 AM
If you count 2di's only, these numbers are still available:
1, 3, 6, 7, 9, 13, 14, 18, 21, 23, 28, 31, 32, 33, 34, 36, 38, 42, 46, 47, 48, 50, 51, 52, 53, 54, 56, 58, 60, 61, 62, 63, 67
, 92, 98
I would also guess I-1 from LA to San Francisco, though the terrain would probably preclude upgrade to interstate standards.
Failing that, an I-42 from Tucumcari to Wichita.
Excluding those that don't have any 3di's, these numbers include:
905, 810, 415, 615, 715, 815, 915, 116, 216, 316, 416, 616, 716, 816, 916, 120, 32, 420, 620, 720, 920, 122, 222, 322, 522, 622, 722, 822, 922, 224, 324, 424, 524, 624, 724, 824, 924, 125, 325, 425, 525, 625, 725, 825, 925, 226, 426, 626, 726, 826, 926, 329, 429, 529, 629, 729, 829, 929, 230, 330, 830, 930, 735, 835, 935, 340, 740, 940, 145, 245, 445, 545, 645, 745, 845, 945, 455, 655, 755, 855, 955, 159, 259, 559, 659, 859, 959, 764, 864, 964, 365, 465, 665, 765, 965, 569, 669, 769, 869, 969, 570, 770, 870, 970, 171, 371, 571, 671, 771, 871, 971, 272, 372, 472, 572, 672, 772, 872, 972, 374, 574, 674, 774, 874, 974, 775, 875, 975, 776, 876, 976, 177, 377, 477, 577, 677, 777, 877, 977, 578, 778, 978, 379, 479, 679, 779, 879, 979, 681, 881, 981, 282, 382, 482, 582, 682, 782, 882, 982, 183, 383, 483, 583, 683, 783, 883, 983, 584, 684, 784, 884, 984, 387, 487, 687, 887, 987, 289, 389, 489, 589, 689, 789, 889, 989, 191, 591, 791, 891, 991, 193, 493, 593, 693, 793, 893, 993, 594, 994, 995, 396, 596, 796, 896, 996
And I apologize for the ommissions of 92 and 98 from the 2di list.
Quote from: Henry on July 17, 2015, 01:02:10 PM
Excluding those that don't have any 3di's, these numbers include: 684
Is this (https://www.google.es/maps/@41.393682,-73.600478,3a,30.7y,173.12h,97.68t/data=!3m6!1e1!3m4!1sj1HGPdQEI9ulnI_Nya9RgQ!2e0!7i13312!8i6656) an illusion, then?
Quote from: Henry on July 17, 2015, 01:02:10 PM
Excluding those that don't have any 3di's, these numbers include:
905, 810, 415, 615, 715, 815, 915, 116, 216, 316, 416, 616, 716, 816, 916, 120, 32, 420, 620, 720, 920, 122, 222, 322, 522, 622, 722, 822, 922, 224, 324, 424, 524, 624, 724, 824, 924, 125, 325, 425, 525, 625, 725, 825, 925, 226, 426, 626, 726, 826, 926, 329, 429, 529, 629, 729, 829, 929, 230, 330, 830, 930, 735, 835, 935, 340, 740, 940, 145, 245, 445, 545, 645, 745, 845, 945, 455, 655, 755, 855, 955, 159, 259, 559, 659, 859, 959, 764, 864, 964, 365, 465, 665, 765, 965, 569, 669, 769, 869, 969, 570, 770, 870, 970, 171, 371, 571, 671, 771, 871, 971, 272, 372, 472, 572, 672, 772, 872, 972, 374, 574, 674, 774, 874, 974, 775, 875, 975, 776, 876, 976, 177, 377, 477, 577, 677, 777, 877, 977, 578, 778, 978, 379, 479, 679, 779, 879, 979, 681, 881, 981, 282, 382, 482, 582, 682, 782, 882, 982, 183, 383, 483, 583, 683, 783, 883, 983, 584, 784, 884, 984, 387, 487, 687, 887, 987, 289, 389, 489, 589, 689, 789, 889, 989, 191, 591, 791, 891, 991, 193, 493, 593, 693, 793, 893, 993, 594, 994, 995, 396, 596, 796, 896, 996
And I apologize for the ommissions of 92 and 98 from the 2di list.
FTFM
Quote from: Scott5114 on July 05, 2015, 09:52:19 PM
I would rule out any of the even numbers between 28 and 48, simply because that is NC's location on the grid...
I would not rule out any of the even numbers between 28 and 48 exactly
because that is NC's location on the grid, and NC has shown it doesn't care about number rules at all.
Quote from: Henry on July 17, 2015, 01:02:10 PM
Excluding those that don't have any 3di's, these numbers include:
905, 810, 415, 615, 715, 815, 915, 116, 216, 316, 416, 616, 716, 816, 916, 120, 32, 420, 620, 720, 920, 122, 222, 322, 522, 622, 722, 822, 922, 224, 324, 424, 524, 624, 724, 824, 924, 125, 325, 425, 525, 625, 725, 825, 925, 226, 426, 626, 726, 826, 926, 329, 429, 529, 629, 729, 829, 929, 230, 330, 830, 930, 735, 835, 935, 340, 740, 940, 145, 245, 445, 545, 645, 745, 845, 945, 455, 655, 755, 855, 955, 159, 259, 559, 659, 859, 959, 764, 864, 964, 365, 465, 665, 765, 965, 569, 669, 769, 869, 969, 570, 770, 870, 970, 171, 371, 571, 671, 771, 871, 971, 272, 372, 472, 572, 672, 772, 872, 972, 374, 574, 674, 774, 874, 974, 775, 875, 975, 776, 876, 976, 177, 377, 477, 577, 677, 777, 877, 977, 578, 778, 978, 379, 479, 679, 779, 879, 979, 681, 881, 981, 282, 382, 482, 582, 682, 782, 882, 982, 183, 383, 483, 583, 683, 783, 883, 983, 584, 684, 784, 884, 984, 387, 487, 687, 887, 987, 289, 389, 489, 589, 689, 789, 889, 989, 191, 591, 791, 891, 991, 193, 493, 593, 693, 793, 893, 993, 594, 994, 995, 396, 596, 796, 896, 996
And I apologize for the ommissions of 92 and 98 from the 2di list.
I know this is old and I apologize for bumping but you left out
102, 202, 302, 402, 502, 602, 702, 802, 902, all the x27s and x 37s. Haha
Quote from: achilles765 on July 22, 2021, 06:54:29 AM
Quote from: Henry on July 17, 2015, 01:02:10 PM
Excluding those that don't have any 3di's, these numbers include:
905, 810, 415, 615, 715, 815, 915, 116, 216, 316, 416, 616, 716, 816, 916, 120, 32, 420, 620, 720, 920, 122, 222, 322, 522, 622, 722, 822, 922, 224, 324, 424, 524, 624, 724, 824, 924, 125, 325, 425, 525, 625, 725, 825, 925, 226, 426, 626, 726, 826, 926, 329, 429, 529, 629, 729, 829, 929, 230, 330, 830, 930, 735, 835, 935, 340, 740, 940, 145, 245, 445, 545, 645, 745, 845, 945, 455, 655, 755, 855, 955, 159, 259, 559, 659, 859, 959, 764, 864, 964, 365, 465, 665, 765, 965, 569, 669, 769, 869, 969, 570, 770, 870, 970, 171, 371, 571, 671, 771, 871, 971, 272, 372, 472, 572, 672, 772, 872, 972, 374, 574, 674, 774, 874, 974, 775, 875, 975, 776, 876, 976, 177, 377, 477, 577, 677, 777, 877, 977, 578, 778, 978, 379, 479, 679, 779, 879, 979, 681, 881, 981, 282, 382, 482, 582, 682, 782, 882, 982, 183, 383, 483, 583, 683, 783, 883, 983, 584, 684, 784, 884, 984, 387, 487, 687, 887, 987, 289, 389, 489, 589, 689, 789, 889, 989, 191, 591, 791, 891, 991, 193, 493, 593, 693, 793, 893, 993, 594, 994, 995, 396, 596, 796, 896, 996
And I apologize for the ommissions of 92 and 98 from the 2di list.
I know this is old and I apologize for bumping but you left out
102, 202, 302, 402, 502, 602, 702, 802, 902, all the x27s and x 37s. Haha
You can't even bump correctly.
1) Pick an unused 2di. I highly doubt I-1 would get used because of CA 1 and that I-3 can be used on US 101.
2) Add a 9 in front of that 2di number to make a 9xx 3di, so in this case, I-901.
There you go, an interstate number that will never be used.
Quote from: SignGeek101 on July 01, 2015, 12:10:41 AM
Interstate 1
I mean, where would you put it?
Right next to I-99.
I-98 comes to mind, as there's room on the grid, but no real reason to have it. You could route it largely along the western US-2, but there's really not any population centers to warrant it.
Quote from: OCGuy81 on July 23, 2021, 10:12:36 AM
I-98 comes to mind, as there's room on the grid, but no real reason to have it. You could route it largely along the western US-2, but there's really not any population centers to warrant it.
Then an even better answer would probably be something like I-898.
Quote from: OCGuy81 on July 23, 2021, 10:12:36 AM
I-98 comes to mind, as there's room on the grid, but no real reason to have it. You could route it largely along the western US-2, but there's really not any population centers to warrant it.
WI 29 is a possibility for I-98. Probably won't be an interstate in our lifetimes, but there are other numbers that are less likely.
Quote from: SkyPesos on July 23, 2021, 10:36:03 AM
Quote from: OCGuy81 on July 23, 2021, 10:12:36 AM
I-98 comes to mind, as there's room on the grid, but no real reason to have it. You could route it largely along the western US-2, but there's really not any population centers to warrant it.
WI 29 is a possibility for I-98. Probably won't be an interstate in our lifetimes, but there are other numbers that are less likely.
I think I-98 has also been linked to the "Rooftop Highway" (US 11 corridor between I-81 & I-87 in far Upstate NY) at one point or another, though I don't know whether this proposal has any serious traction behind it.
What is the closest-together pair of spread-numbered Interstates with the least amount of development in between, that would still have room in the numbering for one more?
For example, there's not much between 25 and 27, but there's no odd number to use.
I see there are no even numbers between 30 and 40. However, if there's ever a Fort Worth—Amarillo Interstate, then maybe it might get such a number.
What are the chances of an odd 2di between 49 and 55?
Et cetera.
Quote from: jmacswimmer on July 23, 2021, 10:41:31 AM
Quote from: SkyPesos on July 23, 2021, 10:36:03 AM
Quote from: OCGuy81 on July 23, 2021, 10:12:36 AM
I-98 comes to mind, as there's room on the grid, but no real reason to have it. You could route it largely along the western US-2, but there's really not any population centers to warrant it.
WI 29 is a possibility for I-98. Probably won't be an interstate in our lifetimes, but there are other numbers that are less likely.
I think I-98 has also been linked to the "Rooftop Highway" (US 11 corridor between I-81 & I-87 in far Upstate NY) at one point or another, though I don't know whether this proposal has any serious traction behind it.
Super fictional idea, but it would be interesting to see I-96 come over from Michigan on some ferry and have it continue on west instead of making a new Interstate.
Quote from: kphoger on July 23, 2021, 10:51:26 AM
What is the closest-together pair of spread-numbered Interstates with the least amount of development in between, that would still have room in the numbering for one more?
For example, there's not much between 25 and 27, but there's no odd number to use.
I see there are no even numbers between 30 and 40. However, if there's ever a Fort Worth—Amarillo Interstate, then maybe it might get such a number.
What are the chances of an odd 2di between 49 and 55?
Et cetera.
Maybe there's hope that someday I-238 meets its parent route. :-)
Based on this thread that I created (https://www.aaroads.com/forum/index.php?topic=23792.msg2363229#msg2363229), I said that I-13 is going to require future growth on the west side of Salt Lake City, while everything else has a current corridor that could be used, and look at reply #10 in that thread.
Quote from: vdeane on July 23, 2021, 03:30:48 PM
Quote from: Terry Shea on July 23, 2021, 09:42:26 AM
Quote from: SignGeek101 on July 01, 2015, 12:10:41 AM
Interstate 1
I mean, where would you put it?
Right next to I-99.
US 219 corridor?
Perfect - then I-70/76 can go from intersecting I-1 to intersecting I-99 at the very next exit! :nod:
Quote from: 1 on July 23, 2021, 11:29:01 AM
Based on this thread that I created (https://www.aaroads.com/forum/index.php?topic=23792.msg2363229#msg2363229), I said that I-13 is going to require future growth on the west side of Salt Lake City, while everything else has a current corridor that could be used, and look at reply #10 in that thread.
Definitely not needed now, but how about Winnemucca to Boise for I-13?
For 3dis, I-997 probably.
Quote from: Roadgeekteen on July 23, 2021, 03:53:55 PM
For 3dis, I-997 probably.
You skipped Step 1
Quote from: SkyPesos on July 22, 2021, 11:03:08 AM
1) Pick an unused 2di. I highly doubt I-1 would get used because of CA 1 and that I-3 can be used on US 101.
2) Add a 9 in front of that 2di number to make a 9xx 3di, so in this case, I-901.
There you go, an interstate number that will never be used.
I saw other people answer 3di numbers, although my guess for a 3di would actually be I-960.
700
Imagine if the first 3di used for I-11 is I-911, and how that would sound when saying it...
Quote from: kphoger on July 23, 2021, 04:05:56 PM
700
I don't know about that...what if NJ 700 was promoted to an interstate and signed? :bigass: