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Renumbering the interstate grid

Started by FLRoads, January 18, 2009, 11:38:49 PM

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elsmere241

I would come up with a new numbering system that covered all of the National Highway System.  This would include all the Interstates as well as the more significant US and state highways.  For a generation you could post the old and new numbers, and then maybe phase out some of the old ones.  I even put together a shapefile of that network (along with Canada's NHS, and enough roads to tie the two together) but I haven't done much with it yet.


akotchi

Refining one of my previous ideas based on recent conversations elsewhere . . .

Extend I-97 through Baltimore, overtaking I-895 Spur and the northern section of I-895 proper, then overlapping I-95 to the existing I-95/I-295 split.  Redirect I-95 onto the I-295 fork to cross the Delaware Memorial Bridge and take the entire New Jersey Turnpike.  Direct I-97 along I-95's current path from the split to U.S. 1 in New Jersey.  Keep the Penn Turnpike as I-276, and extend the designation across the river to Exit 6 in New Jersey.

This, in my opinion, would clean up a lot of the mess in SE Pennsylvania and central New Jersey caused by the cancellation of I-95 between Trenton and New Brunswick, while still providing a 2di for Wilmington, Philadelphia and Trenton.  The current renumbering idea, arising from the interchange construction, IMO, has some flaws.
Opinions here attributed to me are mine alone and do not reflect those of my employer or the agencies for which I am contracted to do work.

florida

I have big beef with Maryland, for some reason. They should renumber I-295 as I-995 since it spurs into Washington, DC, and the B-W Pkwy will never be numbered an interstate. Renumber I-895 to the newly-freed I-295, then, designate an I-895 corridor from Wilmington, DE to Norfolk, VA, west to Emporia, VA. I say this because why is the Chesapeake Bay Bridge-Tunnel going to be billed as, "Save 90 miles vs. I-95" and "Avoid more than 17 stoplights and save time by using US Route 113. It's only one mile longer than US Route 13!" If you're going to bill it as a way to save time and 'bypass' (my word) I-95, then make it a TRUE bypass route! Number it I-895! It bypasses the metropolitan areas in Maryland AND gives Dover, DE an interstate connection, albeit a 3-di. Wouldn't it also help to have a limited access 100% freeway evacuation route on the Delmarva Peninsula?
So many roads...so little time.

mightyace

Quote from: leifvanderwall on April 30, 2009, 09:16:55 PM
Continuing ...
I-62- TN 33 from Nashville, TN to Tazewell, TN, US 58/ ALT 58 east to Hansonville, VA, US 19 north / US 460 east to Burkeville, VA, and US 360 east to I-87
I-64 extended west - MO 8/68 west to Vienna, MO. , MO. 42/ US 54 west to Mullinville,KS,

On your I-62, I think you meant TN 33 from Knoxville not Nashville as TN 33 goes through the former and nowhere near the latter.
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I'm out of this F***KING PLACE!

mightyace

QuoteI-84 east- extended from both east & west . West: PA 118 from Williamsport to Scranton, PA

I'm not sure that there would be a need for this stretch of highway.  I've been on that stretch of PA 118 and can assure you that it's sparsely populated.  Plus, it's only 15-25 miles north of I-80.  Yes, it would save a few minutes between Williamsport and Wilkes-Barre/Scranton but how many people need to do that?
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I'm out of this F***KING PLACE!

Duke87

Here's another idea. It's called "let's eliminate the duplicate numbers in the primary routes."

To de-duplicate I-76:
- let the western route keep the number
- make I-76 from I-71 to exit 18 an extension of I-277
- make the portion between 277 and 77 I-677
- make the portion between 77 and 80 I-477
- make the portion from 80 to 70 either I-880 or I-580.
- move I-70 so it takes over the rest of I-76 through to Bellmawr, NJ. Might as well extend it along the Atlantic City Expressway to Atlantic City while we're at it.
- Accordingly, change 176, 276 376, 476, and 676 to 170, 270, 370, 470, and 670 respectively).
- make I-70 from Breezewood to Hancock I-468.
- make I-70 from Hancock to Baltimore an extension of I-68.
- Accordingly, change 270 and 370 to 268 and 368.

To de-duplicate I-84:
- make the eastern route I-82, with 384 and 684 becoming 382 and 682
- make the existing I-82 I-284.

To de-duplicate I-86:
- let the eastern route keep the number.
- make the western route part of I-84.
- make I-84 from 86 to 15 I-284.
- make I-84 from 15 to 80 I-280.

To de-duplicate I-88:
- let the western route keep the number
- make the eastern route I-681
If you always take the same road, you will never see anything new.

Revive 755

Quote from: Duke87
To de-duplicate I-76:

I think Pittsburgh deserves at least two two-digit routes.  I would bring I-78 west to replace the eastern I-76.  Even though it would involve a multiplex with I-81 and the relocated I-70, it would keep a number available for any future interstate in the US 30 corridor between I-71 and Fort Wayne or west.

Quote from: Duke87To de-duplicate I-86:
- let the eastern route keep the number.
- make the western route part of I-84.
- make I-84 from 86 to 15 I-284.
- make I-84 from 15 to 80 I-280.

I think it would be easier to make the western I-86 the three digit route.  But I'd also change the numbering rules so the western I-86 could be I-384 since it's unlikely traffic using it will return to I-84.

Quote from: Duke87
To de-duplicate I-88:
- let the western route keep the number
- make the eastern route I-681

I think the eastern route is a better candidate for keeping it's number since it at least has both ends at two digit routes.  The western one is more of a spur off of I-80 and should be I-380 or I-80N.

Another way to replace the eastern route would be to relocate I-90 to the eastern I-86 and I-88 alignments, with the original I-90 becoming I-92.  This option could also free up I-86 completely with the remaining I-81 to I-87 stretch becoming I-387.

DrZoidberg

I posted this on Midwest Roads as well, but here goes.

I'd route I-90 through Milwaukee to Madison (on what is now I-94) since I think Milwaukee should be served by an x0 versus Rockford.  I'd then route I-94 along the Northwest Tollway to meet with I-39 in Rockford, and continue to it's current alignment. 
"By the way...I took the liberty of fertilizing your caviar."

Duke87

QuoteI would bring I-78 west to replace the eastern I-76.

You do realize you're creating another Breezewood by doing that, right? Part of my reason for relocating I-70 was to eliminate that (the other part being that it makes more sense geometrically to have the route continue east rather than making a sudden zigzag to the south).

QuoteI think it would be easier to make the western I-86 the three digit route.

Easier, yes, but still less than optimal. I-86 is an extension of the I-84 mainline to the west, with I-84 to the east accessed by single lane ramps. And again, geometric sense. Let the route continue east rather than cutting south.

QuoteI think the eastern route is a better candidate for keeping it's number since it at least has both ends at two digit routes.  The western one is more of a spur off of I-80 and should be I-380 or I-80N.

I axed the eastern one because it's shorter. I suppose it's neither here nor there, really. Both are pretty short as far as primary routes go and neither has any potential secondary benefit in renumbering more than the other.
As for what to make the western one, I-380 could work but I-80N...no. No letter suffixes on interstates. Unless you're I-35.
If you always take the same road, you will never see anything new.

Revive 755

Quote from: Duke87
You do realize you're creating another Breezewood by doing that, right? Part of my reason for relocating I-70 was to eliminate that (the other part being that it makes more sense geometrically to have the route continue east rather than making a sudden zigzag to the south).

I agree with keeping I-70 on the Turnpike to Philly, but I think I-76 west of New Stanton deserves a two digit number.  Sure I-70 would multiplex with the extended I-78 longer than it does with I-76, but there's plenty of other long multiplexes that could be removed like I-20 and I-59, or I-80 and I-90.

Quote from: Duke87
Easier, yes, but still less than optimal. I-86 is an extension of the I-84 mainline to the west, with I-84 to the east accessed by single lane ramps. And again, geometric sense. Let the route continue east rather than cutting south.

But I-84 is more of a diagonal route between the Columbia River valley and I-80.  It also wouldn't be the only place a mainline interstate has a one lane ramp.

Quote from: Duke87As for what to make the western one, I-380 could work but I-80N...no. No letter suffixes on interstates. Unless you're I-35.

Bah, another lousy AASHTO policy; it needs to go if duplication of two digit numbers is to be avoided, especially since many states are low on proper three digit numbers.  And I-35E in St. Paul south of Minnesota should be a state route until trucks are allowed on the parkway section, with the northern half becoming another I-235.

hm insulators

Perhaps the roads between Phoenix and Las Vegas (you use US 60 from Phoenix to Wickenburg, Arizona, then US 93 the rest of the way) should be renumbered. I-13 might be the most practical, even if it's out of order. (Since 13 represents bad luck to some people, it would be apropo--how many people have good luck in the casinos in Vegas? :-D) If you wanted to keep the order, then you'd have to number the new interstate I-17, which means the current I-17 would need to be renumbered as an extension of I-19, a stretch of which could either be piggybacked onto I-10 between Phoenix and Tucson. Or a new section of I-19 running up through Florence and Coolidge, then connecting to US 60 at Florence Junction could be built. From there, US 60 westbound through Apache Junction, Mesa and Tempe can be decertified and that stretch becomes I-19. Or the current I-19 could become I-21.
Remember: If the women don't find you handsome, they should at least find you handy.

I'd rather be a child of the road than a son of a ditch.


At what age do you tell a highway that it's been adopted?



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