New Type of Interchange

Started by kernals12, October 24, 2020, 10:43:18 PM

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jmacswimmer

Meanwhile, the interchange I thought of was the original I-95/695 interchange northeast of Baltimore, where the carriageways crossed over each other to facilitate the left exit/entrance ramps. (Since replaced with a more conventional stack interchange, courtesy of the I-95 ETL construction in that area.)
"Now, what if da Bearss were to enter the Indianapolis 5-hunnert?"
"How would they compete?"
"Let's say they rode together in a big buss."
"Is Ditka driving?"
"Of course!"
"Then I like da Bear buss."
"DA BEARSSS BUSSSS"


BrianP

Quote from: Revive 755 on October 24, 2020, 10:51:29 PM
^ Looks somewhat similar to I-70 at I-170 in the St. Louis area but requiring more ROW. It would also have problems with left side exits, which a stack does not.
Wow I'm surprised there's no advisory speed posted for the left exit the in the SE quadrant.  They went for warning arrows instead. Ugh. The other left exits are 35 or 40 mph.

BrianP

Quote from: jmacswimmer on October 26, 2020, 05:14:10 PM
Meanwhile, the interchange I thought of was the original I-95/695 interchange northeast of Baltimore, where the carriageways crossed over each other to facilitate the left exit/entrance ramps. (Since replaced with a more conventional stack interchange, courtesy of the I-95 ETL construction in that area.)
That one was much better in terms of footrpint.  I wouldn't be surprised if that kind of interchange led to the diverging diamond interchange.

kernals12

Quote from: BrianP on October 26, 2020, 05:27:04 PM
Quote from: jmacswimmer on October 26, 2020, 05:14:10 PM
Meanwhile, the interchange I thought of was the original I-95/695 interchange northeast of Baltimore, where the carriageways crossed over each other to facilitate the left exit/entrance ramps. (Since replaced with a more conventional stack interchange, courtesy of the I-95 ETL construction in that area.)
That one was much better in terms of footrpint.  I wouldn't be surprised if that kind of interchange led to the diverging diamond interchange.

It did.

Joe The Dragon


US 89

Quote from: skluth on October 25, 2020, 11:23:38 AM
This is the old Zoo Interchange in Milwaukee. It's quite similar with left on and off ramps in all directions. It was named for the nearby zoo, not because it was terrible with lots of weaving and accidents causing backups on both freeways with drivers turning into animals. They rebuilt it a few years back into an interchange that worked. Let's not repeat the mistakes of the past with an alleged new idea, like politicians or fashion designers.



The US 75/SH 11 interchange in Tulsa is exactly the same design. I haven't been there in a few years now, but every time I've passed through that interchange there's been a hell of a lot of weaving between the Gilcrease and 36th St. N interchanges on 75.

webny99

Quote from: vdeane on October 24, 2020, 11:29:39 PM
I-390/NY 390 and I-490 also does this.

Glad you mentioned that interchange, because that's the first thing I thought of when I saw the OP. It was basically identical before the current improvement project(s).

Tom958

There's another one at I-40, I-26, and I-240 west of Asheville, too, though it's missing one movement. The interchange is to be reconstructed, and a scheme was put forth that eliminated the left-hand entrances and exits, but then they decided to build it back to the same layout, except with the missing movement added.

MCRoads

Quote from: BrianP on October 26, 2020, 05:23:18 PM
Quote from: Revive 755 on October 24, 2020, 10:51:29 PM
^ Looks somewhat similar to I-70 at I-170 in the St. Louis area but requiring more ROW. It would also have problems with left side exits, which a stack does not.
Wow I'm surprised there's no advisory speed posted for the left exit the in the SE quadrant.  They went for warning arrows instead. Ugh. The other left exits are 35 or 40 mph.

There is. It's 35 MPH.
I build roads on Minecraft. Like, really good roads.
Interstates traveled:
4/5/10*/11**/12**/15/25*/29*/35(E/W[TX])/40*/44**/49(LA**)/55*/64**/65/66*/70°/71*76(PA*,CO*)/78*°/80*/95°/99(PA**,NY**)

*/** indicates a terminus/termini being traveled
° Indicates a gap (I.E Breezwood, PA.)

more room plz

BrianP

Quote from: MCRoads on October 27, 2020, 12:42:48 AM
Quote from: BrianP on October 26, 2020, 05:23:18 PM
Quote from: Revive 755 on October 24, 2020, 10:51:29 PM
^ Looks somewhat similar to I-70 at I-170 in the St. Louis area but requiring more ROW. It would also have problems with left side exits, which a stack does not.
Wow I'm surprised there's no advisory speed posted for the left exit the in the SE quadrant.  They went for warning arrows instead. Ugh. The other left exits are 35 or 40 mph.

There is. It's 35 MPH.
Aahh thanks. I missed it on streetview which was hard to do.  I was expecting the sign to be later so I started right under that sign gantry.  Which was far enough to not see it. 



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