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Left-exit cloverleaf ramps

Started by TheStranger, October 15, 2013, 02:16:17 PM

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roadman65

Quote from: elsmere241 on October 31, 2013, 01:44:49 PM
Quote from: roadman65 on October 18, 2013, 10:03:37 PM
Quote from: jeffandnicole on October 16, 2013, 11:46:15 AM
The biggest problem with the design is coming from 202 South, one enters the left side ramp then must come to an immediate yield, looking back to see if traffic is on the loop.  Many accidents have occurred due to this condition, as there's no merge lane available.
It is a cool design despite its flaws.  True like 1995 said, it would be better if it were to the right of DE 141 to merge into the center of I-95, but being that the configuration is there it is kind of a blessing in disguise.  Having something different and out of the ordinary is good for a change.  Probably the best way to avoid the blind merge, would be to add a lane to the ramp and extend both lanes into the primary merge with I-95 where it then would drop to one and then finally none even at making the whole merge area on the freeway longer.

DelDOT is working on that: http://deldot.gov/information/projects/i95/sr141-i95/index.shtml

The first priority will be to add that lane.
Thanks for the link.  It looks like we do not have to wait to long for it as its states Early 2014.
Every day is a winding road, you just got to get used to it.

Sheryl Crowe


jeffandnicole

Quote from: roadman65 on November 16, 2013, 10:58:58 AM


DelDOT is working on that: http://deldot.gov/information/projects/i95/sr141-i95/index.shtml

The first priority will be to add that lane.

That does show US 206 on that map, right?

Zeffy

Quote from: jeffandnicole on November 17, 2013, 11:43:42 AM
That does show US 206 on that map, right?

Secret extension of US 206 into Delaware?
Life would be boring if we didn't take an offramp every once in a while

A weird combination of a weather geek, roadgeek, car enthusiast and furry mixed with many anxiety related disorders

Truvelo

There's a cloverleaf 20 miles from me where all the ramps are left exits :-D
Speed limits limit life

roadman65

Quote from: Zeffy on November 17, 2013, 11:56:48 AM
Quote from: jeffandnicole on November 17, 2013, 11:43:42 AM
That does show US 206 on that map, right?

Secret extension of US 206 into Delaware?
That is so funny!  It is also interesting as several miles north of Wilimington in New Jersey is that US 202 does overlap with US 206 that could mean someone's mind was not in sync.
Every day is a winding road, you just got to get used to it.

Sheryl Crowe

NE2

Probably an old screenshot of a Googup.
pre-1945 Florida route log

I accept and respect your identity as long as it's not dumb shit like "identifying as a vaccinated attack helicopter".

Mapmikey

Recently discovered there was a 3rd I-81/381 interchange configuration...

http://www.historicaerials.com/aerials.php?scale=3.2E-05&lat=36.6234828589419&lon=-82.1795457622069&year=T1962

I-81 NB to I-381 originally involved a left clover ramp.

By 1970, this was removed and there was no access from I-81 NB to I-381 for a number of years.

Mapmikey

Brandon

Quote from: Truvelo on November 17, 2013, 12:14:53 PM
There's a cloverleaf 20 miles from me where all the ramps are left exits :-D

No shit, you don't say.  :-D

I'd guess, for you folks, it'd be more like a right-exit cloverleaf ramp.
"If you think this has a happy ending, you haven't been paying attention." - Ramsay Bolton, "Game of Thrones"

"Symbolic of his struggle against reality." - Reg, "Monty Python's Life of Brian"

txstateends

The I-35E/I-635 interchange in NW Dallas has a left-exit cloverleaf, NB I-35E to WB I-635, added to the previously-existing interchange when I-635 was extended to DFW Airport in the late 1970s.  I never understood why a sweeping stack ramp wasn't done there instead.  I have heard that when the current 'LBJ Express' project is done between I-35E and US 75, the left-exit will remain, instead of being redone along with the other redone parts of the interchange. 
\/ \/ click for a bigger image \/ \/

Bitmapped

The US 30/SR 696 interchange by Beaverdam, OH has a left-hand loop.  I'm not really sure why ODOT went with this style of interchange: http://goo.gl/maps/Nu7o8

PurdueBill

The US 30-OH 696 one isn't so much as a left-exit cloverleaf as it is an inside trumpet with movements to and from US 30 eastbound on the left, probably because of the existing ROW (from the previous US 30 expressway ending at a part-ghost interchange at Lincoln Highway, planned to swing to the northeast after passing under it) and the direction of the new road more directly east.  A traditional trumpet wouldn't have fit as well.

english si

Quote from: Brandon on April 07, 2014, 01:01:43 PM
Quote from: Truvelo on November 17, 2013, 12:14:53 PM
There's a cloverleaf 20 miles from me where all the ramps are left exits :-D

No shit, you don't say.  :-D

I'd guess, for you folks, it'd be more like a right-exit cloverleaf ramp.
Heh, at least it is only 20 miles away for him: there's only three drive-on-left cloverleaves in Europe (Livingston, the Redditch one Truvelo is taking of and one on Malta). You could argue one in Plymouth and one in Kingston, but no one really counts them.

There's more loop ramps, obviously and this one at the Red Cow in Ireland is a right-exit one. The similar one at the N4/M50 junction to the north is more of an equal split than a right exit.

flowmotion

This might count: Harrison St exit from I-80 San Francisco Bay Bridge

https://www.google.com/maps/@37.78497,-122.3928996,18z



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