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Highway concurrencies that run on separate lanes

Started by Some one, January 22, 2020, 09:10:52 PM

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Some one

Pretty simple. Two highways that run concurrent/multiplexed/whatever you call it but on separate lanes. Kinda like I-45 and I-10,
I-69/US 59 and SH 288, and I-85 and I-285


Rothman

Quote from: Some one on January 22, 2020, 09:10:52 PM
Pretty simple. Two highways that run concurrent/multiplexed/whatever you call it but on separate lanes. Kinda like I-45 and I-10,
I-69/US 59 and SH 288, and I-85 and I-285
I-94 and the I-35s in Minneapolis and St. Paul?
Please note: All comments here represent my own personal opinion and do not reflect the official position(s) of NYSDOT.

roadman65

US 9 and the Garden State Parkway in Woodbridge, NJ.
Every day is a winding road, you just got to get used to it.

Sheryl Crowe

Big John

I-85 and I-286 in southwest Fulton County, Georgia.

oscar

If they're on separate lanes, they might not be truly "concurrent". For example, Interstate H-1 and HI 92 have the same centerline between H-1 exits 15 and 18, but H-1 is on a long viaduct above the ground-level HI 92, and the two highways are treated by HDOT as separate, non-concurrent/multiplexed routes.

Similarly I-65/US 31 north of Louisville, Autoroute A-440/Quebec 335 north of Montreal,  and part of Autoroutes 10 and 55 (share lanes and roadway) and Quebec 112 (separate sets of non-concurrent lanes) between Magog and Sherbrooke. In those cases, the lesser highway runs along the freeway on frontage roads.
my Hot Springs and Highways pages, with links to my roads sites:
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roadman65

Is NY 27 concurrent with the Belt Parkway on Long Island?  Or is it routed on the frontage roads.  I imagine the latter, but that is cause trucks are banned on NY Parkways. However, state routes do not need a truck alternate and NYSDOT could actually have a bannered one along the service roads.
Every day is a winding road, you just got to get used to it.

Sheryl Crowe

vdeane

NY 27 uses the frontage roads.  Regarding truck prohibitions, if I remember right, not being on a designated truck facility is the reason why NYCDOT doesn't sign the portion of NY 24 that runs through the city.
Please note: All comments here represent my own personal opinion and do not reflect the official position of NYSDOT or its affiliates.

roadman65

Quote from: vdeane on January 22, 2020, 09:40:44 PM
NY 27 uses the frontage roads.  Regarding truck prohibitions, if I remember right, not being on a designated truck facility is the reason why NYCDOT doesn't sign the portion of NY 24 that runs through the city.
So it counts as far as the OP is concerned if I interpret it as two routes in the same ROW but separate lanes.  I think that is what Oscar was pointing out that the title is sort of not correct to its true meaning.
Every day is a winding road, you just got to get used to it.

Sheryl Crowe

Some one

Yeah, sorry. I'm not really sure what to call it. As long as they're two or more highways that run along the same path (but on different lanes), then it's fine.

sprjus4

I-73 / I-85 near Greensboro, NC - I-85 runs on the inside lanes and I-73 runs on the outside lanes.

I-69E / SH-44 in Robstown, TX - I-69E runs on the inside mainline, SH-44 runs on the frontage roads.

roadman65

I suppose that I-91 and CT 15 does sort of in two places where I-91 is in the median of the CT 15 freeways.

US 92 and I-4 near Tampa is another as for almost a mile both routes run together but separate.
US 1 & 90 and I-95 do that now in Jacksonville and the US routes use a c/d roadway of the interstate.
Every day is a winding road, you just got to get used to it.

Sheryl Crowe

DJ Particle

#11
Quote from: Rothman on January 22, 2020, 09:18:34 PM
Quote from: Some one on January 22, 2020, 09:10:52 PM
Pretty simple. Two highways that run concurrent/multiplexed/whatever you call it but on separate lanes. Kinda like I-45 and I-10,
I-69/US 59 and SH 288, and I-85 and I-285
I-94 and the I-35s in Minneapolis and St. Paul?

I-35W and MN-62.... the "Crosstown Commons"
And if you're counting the St. Paul 94/35E concurrency... I-94 and US-61 just east of it, the I-35W/US-10 concurrency, and the I-35E/694 concurrency.

And the newest one in the Cities...  MN-610 and CSAH-81

And do we count US-169/CSAH-1 in southern Bloomington?

Mapmikey


GaryV


Henry

I-83 and I-695 fits this description. While I-695 uses the inner mainline, I-83 goes on the outer lanes, and both ends are exit only.
Go Cubs Go! Go Cubs Go! Hey Chicago, what do you say? The Cubs are gonna win today!

kphoger

Are you talking about separate roadways?  Lanes are the spaces between painted lines on the same bit of pavement.  Roadways are the traveled portions of a highway between shoulders/berms/barriers/etc.

He Is Already Here! Let's Go, Flamingo!
Dost thou understand the graveness of the circumstances?
Deut 23:13
Male pronouns, please.

Quote from: PKDIf you can control the meaning of words, you can control the people who must use them.

webny99

#16
Would the Thruway and I-790 in Utica count?

I think NY 7 and I-87 near Albany count as half, since northbound shares a roadway while southbound is grade-separated, as seen here.

interstate73

The recent reconstruction of the I-80/29 intersection in Council Bluffs, IA created a "dual divided freeway" where the two routes had previously run on the same roadway, although the inner lanes are signed as I-80 Express and the outer lanes are signed as I-29/I-80 Local, so I guess it's a partial concurrency :hmmm:
🎶 Man, there’s an opera on the Turnpike 🎶

Morris County if the Route 178 Freeway had been built:

SSR_317

I-65 and 38th Street (not a numbered route, but a major arterial) on the NW side of Indy just north of Speedway.

jeffandnicole


Great Lakes Roads

Quote from: SSR_317 on January 24, 2020, 12:49:21 PM
I-65 and 38th Street (not a numbered route, but a major arterial) on the NW side of Indy just north of Speedway.
Also want to add I-465 at Shadeland Avenue (also not a numbered route) on the East side of Indy.
-Jay Seaburg

Thing 342

The Dulles Toll Road (VA 267) is officially a separate designation from the free Dulles Access Road (VA 90004) which runs inside its median from Dulles to VA-123.
I-66 runs within the median of US-29 for a short distance in Arlington.

jp the roadgeek

I-84 and CT 72 do for about a half mile in Plainville.  The left 2 lanes EB and the right 2 lanes WB are CT 72 lanes.  It turns into a slalom course with all the weaves between lanes to switch roadways. 
Interstates I've clinched: 97, 290 (MA), 291 (CT), 291 (MA), 293, 295 (DE-NJ-PA), 295 (RI-MA), 384, 391, 395 (CT-MA), 395 (MD), 495 (DE), 610 (LA), 684, 691, 695 (MD), 695 (NY), 795 (MD)

woodpusher

Quote from: Some one on January 22, 2020, 09:10:52 PM
Pretty simple. Two highways that run concurrent/multiplexed/whatever you call it but on separate lanes. Kinda like I-45 and I-10,
I-69/US 59 and SH 288, and I-85 and I-285

Should google maps be the arbiter of this question?  I'd want to do some digging into TIGER files to really know.  I'll admit I've taken some shortcuts myself when it comes to placing highway shields on GIS maps.

US 89

I guess I-15 and US 89 north of Salt Lake City might qualify, but I've never thought of that segment as a concurrency in the same way as something like 85/285.



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