What I mean exactly:
There are instances where a numbered (freeway) route changes alignments significantly such that one has to stay on the right to continue on the numbered route, with the through route (of at least two lanes continuing on) on the left side being another number entirely. (Or when one freeway segment terminates at another in the other direction, one essentially joins another numbered route from the right side)
I'm not sure if a fully-directional Y would count for this, but a semi-directional Y (as in the forthcoming example of I-5 off of US 101) absolutely does.
i.e. for I-5, mainline switches occur at the following junctions:
I-805 in the La Jolla area of San Diego (I-5 exits off of itself while the through lanes from the north continue as 805 going southbound)
US 101 in East Los Angeles (the Santa Ana Freeway - which used to be US 101 both north and south of the interchange - continues as the through lanes, while I-5 exits along the Golden State Freeway)
Route 99 in Wheeler Ridge (I-5 exits to use the West Side Freeway while 99 continues north on the Golden State Highway corridor and used to continue south as well)
I-580 in Vernalis (I-580 was planned as I-5W though so this only became a switch when the western branch of 5 was renumbered)
I-405 in Portland (the left through lanes continue to 405 and Harbor Drive)
for I-80, this phenomenon occurs at:
the Macarthur Maze at 880/580 (eastbound lanes merge onto the right side of what was once the through lanes for Route 17, westbound lanes exit off of the right)
US 50 in West Sacramento (80 uses the right-side ramps on both directions for what used to be 880; prior to this, the mainline switch occurred at Route 99/US 50 in Sacramento's Oak Park area, where Business 80 now exits off of itself while 50 continues on)
I-15 in Salt Lake City (the concurrency with 15 requires 80 traffic in both directions to stay to the right)
I-76 in Big Springs, Nebraska (through traffic from the east continues west onto what was former I-80S/current I-76, and 80 eastbound traffic merges onto the right side of the end of 76)
I-35/I-235 in West Des Moines (I-80 traffic continues on right-hand ramps to I-35 north, while mainline lanes become I-235)
I-280/I-74 in Colona, Illinois (the infamous I-74/I-80 cloverleaf)
I-294 in Markham, Illinois (from the 80/294 concurrency going west, 80 exits on the right and enters the multiplex on the right as well)
I-90 in Lake Station, Indiana
I-76 in Jackson Township, Ohio (where 80 leaves the Ohio Turnpike)
I-280 in Parsippany, New Jersey
I-44 in OKC exits off itself several times.
There's about three mainlane switches for I-10. One is north of the East L.A. interchange where it meets with I-5 (eastbound I-10 exits I-5 while westbound I-10 merges into I-5 South). Two are in San Antonio: first with the IH 35 junction northwest of downtown San Antonio and second at the I-10 interchange with I-35 and U.S. 90.
Quote from: TheStranger on July 17, 2010, 03:58:33 PM
I-76 in Jackson Township, Ohio (where 80 leaves the Ohio Turnpike)
I-76 exits itself 2 additional times, each at the Kenmore Leg. I-77 exits itself at the Central Interchange to meet up with I-76 WB
Quote from: bugo on July 17, 2010, 04:08:33 PM
I-44 in OKC exits off itself several times.
I-35 also exits off itself in OKC, but only once compared to I-44's 3 times it exits itself in the OKC metro alone.
Quote from: TheStranger on July 17, 2010, 03:58:33 PM
I-280/I-74 in Colona, Illinois (the infamous I-74/I-80 cloverleaf)
This is one of the oddest and most annoying ones because both I-80 and I-74 exit off themselves. I've long thought that the interstates in the Quad Cities shuld be numbered differently to avoid this. I plan my route going through there in order to avoid having to take an exit-if I am taking I-80 towards Chicago, I take I-280 around the Quad Cities so that I can just go straight at that interchange, and if I am taking I-74 towards Peoria, I stay on I-80 around the Quad Cities so that I can go straight into I-74 at the interchange.
Depending on your definition, I'd say I-72 exits itself 3 times - at I-172, and twice at I-55. Eastbound I-72 on the south side of Springfield merges into I-55, but westbound is more of an exit off I-55. Similarly, westbound I-72 exits itself at exit 4 (I-172).
I know I-15 when it follows the I-90 roadway for a while does this - each direction has to "exit" to stay on I-15 -- that "exit" is an exit number for I-15 itself! At the I-90/94 spilt east of Billings, the same thing occurs: I-90 is an exit for itself, exit 455, while I-94 just continues straight ahead. (I-90 is exit 0 on westbound 94)
Quote from: huskeroadgeek on July 17, 2010, 07:00:40 PM
Quote from: TheStranger on July 17, 2010, 03:58:33 PM
I-280/I-74 in Colona, Illinois (the infamous I-74/I-80 cloverleaf)
This is one of the oddest and most annoying ones because both I-80 and I-74 exit off themselves. I've long thought that the interstates in the Quad Cities shuld be numbered differently to avoid this. I plan my route going through there in order to avoid having to take an exit-if I am taking I-80 towards Chicago, I take I-280 around the Quad Cities so that I can just go straight at that interchange, and if I am taking I-74 towards Peoria, I stay on I-80 around the Quad Cities so that I can go straight into I-74 at the interchange.
There are several inelegant solutions (one that I thought of is to extend 88 along what is now I-80 on the north side, have 80 replace 280, and 74 remain on its existing alignment) and one that was proposed but not used (switching 280 and 80). But the absolute best solution - which would avoid ALL mainline switches - would be simply having 280 replaced by 80, and 74 replacing 80 on the north side!
It's very political - I think 74 running straight through the Quad Cities when it doesn't serve as a through connection from the rest of 74 in the first place is evidence of that.
I-55 in Memphis does this. You have to get in the exit lane to stay on 55, while the left lanes proceed to Riverside Drive. I-10 at Slidell does the same thing.
Some other possible candidates:
Interstates 87 and 90 at Exit 24 of the New York State Thruway as well as Exits 1E-W and 1N-S of the Adirondack Northway and the Northside Arterial, respectively.
Interstate 90 at Exit B1 of the Berkshire Spur of the same Thruway
Interstates 93 and 95 south of Boston due to the fact that Interstate 95 was never completed into downtown Boston.
Interstate 95 in metropolitan Washington, DC, both in Maryland and Virginia on the National Capital Beltway
Interstates 76 and 80 on the Ohio Turnpike
Interstate 76 from the Pennsylvania Turnpike to the Schuykill Expressway
Quote from: TheStranger on July 17, 2010, 07:57:31 PM
Quote from: huskeroadgeek on July 17, 2010, 07:00:40 PM
Quote from: TheStranger on July 17, 2010, 03:58:33 PM
I-280/I-74 in Colona, Illinois (the infamous I-74/I-80 cloverleaf)
This is one of the oddest and most annoying ones because both I-80 and I-74 exit off themselves. I've long thought that the interstates in the Quad Cities shuld be numbered differently to avoid this. I plan my route going through there in order to avoid having to take an exit-if I am taking I-80 towards Chicago, I take I-280 around the Quad Cities so that I can just go straight at that interchange, and if I am taking I-74 towards Peoria, I stay on I-80 around the Quad Cities so that I can go straight into I-74 at the interchange.
There are several inelegant solutions (one that I thought of is to extend 88 along what is now I-80 on the north side, have 80 replace 280, and 74 remain on its existing alignment) and one that was proposed but not used (switching 280 and 80). But the absolute best solution - which would avoid ALL mainline switches - would be simply having 280 replaced by 80, and 74 replacing 80 on the north side!
It's very political - I think 74 running straight through the Quad Cities when it doesn't serve as a through connection from the rest of 74 in the first place is evidence of that.
I like the idea of 74 replacing 80 on the north side and 80 replacing 280 on the south side. Then the portion of 74 between 80 and 280 could be given the 280 number. That portion of highway really is more suited for a 3di anyway. It really is more of a local route that serves the downtown areas of Bettendorf and Moline rather than a through route for I-74 traffic. Ideally, I-74 should end at that interchange. Then the remaining portion of I-74 could be another x80-I guess it would have to be I-880 though since 480 and 680 are already in use in Iowa. You're probably right about politics-there's no other logical reason why I-74 shouldn't end at that interchange.
Interstate 95 is the one route I think does this quite a bit:
- possibly at the I-10 junction in Jacksonville
- I-295 north of Richmond (I would guess this was introduced when the proposal to reroute 95 on 295 existed)
- I-495 in Virginia (southbound, this has become a left-hand continuation, but it may have been a true all-right-exit switchover at one point)
- I-495 in Maryland (I think this may have been intended as a southbound left exit even before 95 into DC was canceled)
- I-895 in Rosedale, Maryland north of Baltimore
- I-276 in metro Philadelphia (once constructed)
- New Jersey Turnpike in Mansfield Township, New Jersey
- I-80 in Fort Lee, New Jersey
- not sure if I-395 in Groton, Connecticut counts (as I-95 continues southbound along left side)
- I-93/Route 128 in Dedham, Massachusetts
- Route 128 in Peabody, Massachusetts
- formerly at I-495 in Portland, MA
Quote from: golden eagle on July 17, 2010, 08:29:38 PM
I-55 in Memphis does this. You have to get in the exit lane to stay on 55, while the left lanes proceed to Riverside Drive. I-10 at Slidell does the same thing.
It exits off itself twice in Memphis: at Riverside and at I-240.
Quote from: okroads on July 17, 2010, 06:18:37 PM
Quote from: bugo on July 17, 2010, 04:08:33 PM
I-44 in OKC exits off itself several times.
I-35 also exits off itself in OKC, but only once compared to I-44's 3 times it exits itself in the OKC metro alone.
Do you know the history behind I-44 between I-35 and I-40? I know it was once I-240. It appears to be several highways haphazardly tied together.
QuoteI-55 in Memphis does this.
Twice, as bugo noted.
QuoteI-10 at Slidell does the same thing.
As the OP defined it, yes. Though this one's arguable, given that the 10/59 split going north/eastbound is designed as a major route split...it's not really an exit ramp per se.
QuoteInterstate 95 in metropolitan Washington, DC, both in Maryland and Virginia on the National Capital Beltway
Not anymore in Virginia. Maryland is arguable, as southbound is designed as a through-route continuation, while northbound you have a "major split" where it breaks off the Outer Loop and a "major merge" where the ramp from the Inner Loop merges.
Quote- I-495 in Virginia (southbound, this has become a left-hand continuation, but it may have been a true all-right-exit switchover at one point)
It was, prior to the Springfield Interchange makeover.
Quote- I-495 in Maryland (I think this may have been intended as a southbound left exit even before 95 into DC was canceled)
Actually, no. The original configuration had only the loop ramp which now serves as the southbound connection to US 1. The current southbound 95 flyover was built sometime in the '80s, well after the DC cancellation.
Quote- I-895 in Rosedale, Maryland north of Baltimore
Not anymore.
Quote from: bugo on July 17, 2010, 09:15:58 PM
Quote from: okroads on July 17, 2010, 06:18:37 PM
Quote from: bugo on July 17, 2010, 04:08:33 PM
I-44 in OKC exits off itself several times.
I-35 also exits off itself in OKC, but only once compared to I-44's 3 times it exits itself in the OKC metro alone.
Do you know the history behind I-44 between I-35 and I-40? I know it was once I-240. It appears to be several highways haphazardly tied together.
I-44 through OKC is a couple of different highways tied together; from the northern terminus of the H.E. Bailey Turnpike to I-240 was originally just U.S. 62, then from present-day I-240 (Exit 115) to I-40, present-day I-44 was part of I-240. North of I-40, it was originally I-440, and the part between OK 66 & I-35 was originally just U.S. 66. All of this route was changed to I-44 in 1982.
Quote from: okroads on July 17, 2010, 11:59:37 PM
I-44 through OKC is a couple of different highways tied together; from the northern terminus of the H.E. Bailey Turnpike to I-240 was originally just U.S. 62, then from present-day I-240 (Exit 115) to I-40, present-day I-44 was part of I-240. North of I-40, it was originally I-440, and the part between OK 66 & I-35 was originally just U.S. 66. All of this route was changed to I-44 in 1982.
I-44 was extended for Oklahoma's 75th anniversary celebration. Oklahoma has a weird way of celebrating its birthdays. For the centennial celebration, ODOT changed from the circle to the meat cleaver. I wonder what they'll do in 2032.
Quote from: bugo on July 18, 2010, 03:08:18 AM
Quote from: okroads on July 17, 2010, 11:59:37 PM
I-44 through OKC is a couple of different highways tied together; from the northern terminus of the H.E. Bailey Turnpike to I-240 was originally just U.S. 62, then from present-day I-240 (Exit 115) to I-40, present-day I-44 was part of I-240. North of I-40, it was originally I-440, and the part between OK 66 & I-35 was originally just U.S. 66. All of this route was changed to I-44 in 1982.
I-44 was extended for Oklahoma's 75th anniversary celebration. Oklahoma has a weird way of celebrating its birthdays. For the centennial celebration, ODOT changed from the circle to the meat cleaver. I wonder what they'll do in 2032.
Let me guess, the Gilcrease Expressway will be completed? :D
Some more California examples, with I-5's four (805, 101, 99, 580) probably taking the cake:
I-580:
I-80 in Richmond (became a right-exit instead of a directional Y in 1997)
I-238/Route 238 in Castro Valley
formerly at I-205 near Mountain House until 2009 (became a directional Y, was built semi-directional; semi-directional ramp to right-side of road is now truck ramp; US 50 continued east and west of this interchange on the mainline)
Route 99's three are all located in Sacramento:
US 50/Business 80 at the Oak Park interchange (US 99E used to continue directly north on the mainline that connects Route 99 with Business 80)
I-5 in downtown
I-5 in Natomas near the airport
---
Some more national examples:
I-15:
formerly at Route 163 (I assume this was changed up when the historic Kearny Villa Road/former US 395 alignment was bypassed in the early 80s)
I-215 at Devore (US 395 continued on mainline in both directions with today's I-15/originally planned Route 31 exiting from the right southbound and entering from the right northbound; and at one point the mainline was I-15 or I-15E until 1982)
I-84 in Tremonton, Utah
I-90 in Ramsay, Montana (west of Butte)
I-90 in Butte, Montana
I-40:
I-35 in Oklahoma City
(was I-240 in downtown Memphis ever built as such, or was it built with the mainline feeding into the north beltway half with the connection to Sam Cooper Boulevard already canceled?)
I-240 in eastern Memphis (though could this be considered a directional interchange with the left exit, and thus not a true mainline switch? I suspect this left exit was around even when 40 was on Sam Cooper)
I-65 in Nashville
I-73 in Greensboro (was originally not at all a switch until the beltway construction began, and then 40 was returned to its through-town alignment but now exiting off itself)
I-85 in Greensboro (see note for I-73)
I-85 in Hillsborough, North Carolina
(was there ever one at Wade Avenue in Raleigh near the RBC Center?)
I-70:
I-55/I-64/US 40 in St. Louis
I-55 in Troy, Illinois
I-65 (northeastern split) in Indianapolis
I-670 in Columbus
I-71 in Columbus
I-76 in Youngwood, Pennsylvania
I-76 in Breezewood :ded:
US 30 in Breezewood :pan:
Western I-84:
ramps for I-205 (was planned as I-80N) in Portland
I-86 in Rupert, Idaho (US 30 remains on mainline both west and east of the interchange)
I-15 in Ogden
I-90:
I-94 in Billings, Montana
(formerly at today's I-290 in Rolling Hills, Illinois and in Chicago)
North-south spur to Cermak Road at I-55 in Chicago
I-94 at the Chicago Skyway
I-80 in Elyria, Ohio
I-71 in Cleveland
I-271 in Wickliffe, Ohio
I-87 in Albany
Berkshire Thruway southeast of Albany
I-74:
I-280 near Quad City International Airport in Illinois (US 6 continues on mainline)
I-80 in Colona, Illinois
I-55 in Springfield
I-465 in Speedway, Indiana
I-465 in Beech Groove, Indiana
I-10 in Baton Rouge exits itself as the mainline becomes I-12, at the New Orleans line it exits itself as the mainline becomes I-610, 3 miles later it exits itself again as the mainline becomes U.S. 90 Business, once in Slidell it exits itself one more time at the interchange with I-59.
Quote from: TheStranger on July 17, 2010, 03:58:33 PM
I-294 in Markham, Illinois (from the 80/294 concurrency going west, 80 exits on the right and enters the multiplex on the right as well)
I-80 exits here, not I-294. I-294 (Tri-State Tollway) is the mainline. Currently, it functions more as a split than an exit.
QuoteI-90 in Lake Station, Indiana
No, I-80 does the exiting here, not I-90.
Isn't this called a "TOTSO" (Turn Off To Stay On)?
Quote from: TheStranger on July 18, 2010, 04:09:13 AM
I-90:
(formerly at today's I-290 in Rolling Hills, Illinois and in Chicago)
North-south spur to Cermak Road at I-55 in Chicago
I-94 at the Chicago Skyway
The Cermak Spur is an exit off I-90 and I-94. The two split further north at the Edens Junction.
QuoteI-74:
I-55 in Springfield
That's Bloomington-Normal, not Springfield. The north junction (Exit 163) functions this way. The south one is a split.
I-72 does this on the east side of Springfield, IL. The reason is that is was originally the end of I-72.
I-39 did for a while twice in Rockford. Once at the I-39/US-20 interchange (still does) and once at the I-39/I-90 interchange. The latter was recently turned into a split.
I-94 exits I-80 in South Holland, IL (Exit 160).
Quote from: TheStranger on July 17, 2010, 08:35:58 PM
Interstate 95 is the one route I think does this quite a bit:
{...}
- not sure if I-395 in Groton, Connecticut counts (as I-95 continues southbound along left side)
Nah, the lane configuration isn't right for that to count. Both lanes of 95 NB continue as 95 NB, 395 is a left exit.
Although, 95 does "exit" the Connecticut Turnpike here.
I-278 (you knew it had to come up...) has what is perhaps the most infamous instance of this at the Grand Central Parkway. Not only does all traffic westbound have to get into the right lane and take an exit to stay on 278, the roadway continuing straight ahead is a
parkway - so if a truck fails to get over, it's in for some trouble.
As defined by the OP, 278 has two other definite instances of this: EB at I-478 and WB at I-95/NJTP. There are a couple other instances which may not count but are nonetheless multilane left exits: EB at I-87, and WB at the Belt Parkway split.
The Hutchinson River parkway has an instance of this southbound at exit 15, with three lanes continuing forward as the Cross County Parkway and two exiting to the right to stay on the Hutch... although, in this case it's justifiable: more traffic "exits" at the Cross County than continues through on the Hutch.
Quote from: Brandon on July 18, 2010, 09:17:46 AM
Quote from: TheStranger on July 17, 2010, 03:58:33 PM
I-294 in Markham, Illinois (from the 80/294 concurrency going west, 80 exits on the right and enters the multiplex on the right as well)
I-80 exits here, not I-294. I-294 (Tri-State Tollway) is the mainline. Currently, it functions more as a split than an exit.
QuoteI-90 in Lake Station, Indiana
No, I-80 does the exiting here, not I-90.
That's what I meant for both examples, 80 exiting there.
Quote from: Chris on July 18, 2010, 09:18:43 AM
Isn't this called a "TOTSO" (Turn Off To Stay On)?
Technically yes, although I think it's more of a European term.
QuoteIsn't this called a "TOTSO" (Turn Off To Stay On)?
Yes and no. True exit ramps would definitely be considered TOTSOs. But Mr. Sampang in his original post listed criteria that would also include major route splits and major route merges, which technically aren't TOTSOs.
Quote
Interstate 95 in metropolitan Washington, DC, both in Maryland and Virginia on the National Capital Beltway
Not anymore in Virginia. Maryland is arguable, as southbound is designed as a through-route continuation, while northbound you have a "major split" where it breaks off the Outer Loop and a "major merge" where the ramp from the Inner Loop merges.
Thank you for the correction. The only time I had been through that area was August 1997, late at night and another 300+ miles to try and get home. No doubt, things have long since changed.
Quote from: TheStranger on July 18, 2010, 04:09:13 AM
---
Some more national examples:
I-70:
I-71 in Columbus
No on I-71. I-70 is the through route there and I-71 exits itself onto (and off of) I-70
Quote from: osu-lsu on July 18, 2010, 11:16:28 PM
Quote from: TheStranger on July 18, 2010, 04:09:13 AM
---
Some more national examples:
I-70:
I-71 in Columbus
No on I-71. I-70 is the through route there and I-71 exits itself onto (and off of) I-70
The east 70-71 junction in Google Maps has 70 eastbound exiting on the right side from 71 northbound, and 70 westbound entering on the right side onto 71 southbound. Has this been reconfigured?
Quote from: TheStranger on July 18, 2010, 11:40:32 PM
Quote from: osu-lsu on July 18, 2010, 11:16:28 PM
Quote from: TheStranger on July 18, 2010, 04:09:13 AM
---
Some more national examples:
I-70:
I-71 in Columbus
No on I-71. I-70 is the through route there and I-71 exits itself onto (and off of) I-70
The east 70-71 junction in Google Maps has 70 eastbound exiting on the right side from 71 northbound, and 70 westbound entering on the right side onto 71 southbound. Has this been reconfigured?
Quote from: TheStranger on July 18, 2010, 11:40:32 PM
Quote from: osu-lsu on July 18, 2010, 11:16:28 PM
Quote from: TheStranger on July 18, 2010, 04:09:13 AM
---
Some more national examples:
I-70:
I-71 in Columbus
No on I-71. I-70 is the through route there and I-71 exits itself onto (and off of) I-70
The east 70-71 junction in Google Maps has 70 eastbound exiting on the right side from 71 northbound, and 70 westbound entering on the right side onto 71 southbound. Has this been reconfigured?
Not yet. Though I see your point. In that case I-71 exits itself for I-670 as well (last parts of the original Columbus innerbelt interchanges still standing)
Quote from: Chris on July 18, 2010, 09:18:43 AM
Isn't this called a "TOTSO" (Turn Off To Stay On)?
Quote from: huskeroadgeek on July 18, 2010, 03:12:33 PMTechnically yes, although I think it's more of a European term.
Technically it has no name, but British (and Irish copying them) roadgeeks use the term. I would say it is a British term, rather than a European term, as Europe isn't just the islands off the mainland that speak English.
Quote from: froggie on July 18, 2010, 03:20:25 PMYes and no. True exit ramps would definitely be considered TOTSOs. But Mr. Sampang in his original post listed criteria that would also include major route splits and major route merges, which technically aren't TOTSOs.
British roadgeeks would count any split where you have to go off to the left as a TOTSO, with the exception of the very few right exits - even if there's a 2-2 lane split. Mainlines are considered to be the carriageways separated by a median and nothing else. Therefore the M25 TOTSOs both ways at junction 5, despite it being an even split with three lanes having the middle lane split in two and two lanes to both the M25 and the A21/M26.
The M42 holds the UK motorway record - it has 3 (one at junction 3a and two at the multiplex with the M6 Toll - though they are only in one direction each, due to being forks). The M25 has one, at the aforementioned junction 5. The M1 has one, at junction 42. The M6 has two (forks, so mono-directional) at either end of the M6 Toll, although you could argue the case for one at junction 45, at the end of the motorway. The M60 has one (involving going via a roundabout in one direction - yuck) at junction 18 and the M62, while not signed in multiplex with the M60 has one at junction 12.
I'm surprised no one has mentioned I-83 exiting off itself tiwce within 5 miles of each other in Harrisburg, PA at PA 581 and US 322/I-283
I-40 now does this west of Greensboro, NC. Originally it was planned to use the Urban Loop (now designated I-73 and I-85) around the city so the interchange was built with that in mind for the main flow of traffic. Then NCDOT instead of making it a 3di, found out that old I-40 through Greensboro would no longer get federal funding... so they routed it back and now I-40 "exits itself" west of Greensboro.
Since 1989, US 280 exits off itself at its interchange with the Red Mountain Expressway just south of Birmingham.
I-70 also has the I-29/35 split in Kansas City and the I-670 junction.
Quote from: TheStranger on July 17, 2010, 08:35:58 PM
Interstate 95 is the one route I think does this quite a bit:
- not sure if I-395 in Groton, Connecticut counts (as I-95 continues southbound along left side)
The I-95/I-395 junction is to the west in Waterford, CT, as I-395 itself never touches Groton. To this day, it's only a half intersection: I-95 North to I-395 North and I-395 South to I-95 South. That's also the route of the original Connecticut Turnpike from when it was tolled. There's been talk about this interchange being even more complex, when and if CT Route 11 finally gets extended past Connecticut Route 85 in Salem (as it would end at this interchange).
I am surprised no one has mention the few instances in Wisconsin.
I-39: Northbound exits right from I-90/94 and Southbound exits right from Wis 78 (Cascade interchange)
I-43: Southbound exits left from I-894 (Hale interchange)
I-43: Southbound exits right from I-94/US41 (Mitchell interchange)
I-90: Westbound exits left from I-94 at Tomah.
I-94: Westbound exits right from I-43 and Eastbound exits right from I-794. (Marquette interchange)
I-94: Westbound exits right from Wis 30 and Eastbound exits left from I-39/90 (Badger interchange)
Also in Illinois, I-39 does a couple times in Rockford. I-39 Southbound exits right from I-90 and exits left from US 20.
I-39 Northbound exits right at US 20.
I-86 at I-390 in Avoca, though due to the design of the interchange, this is only the case westbound.
Quote from: UptownRoadGeek on July 18, 2010, 04:25:37 AM
I-10 in Baton Rouge exits itself as the mainline becomes I-12, at the New Orleans line it exits itself as the mainline becomes I-610, 3 miles later it exits itself again as the mainline becomes U.S. 90 Business, once in Slidell it exits itself one more time at the interchange with I-59.
Best example is I-10 WB at I-110 in BR - though this is technically a 'correct' exit setup because 110 exits to the 'right', in practice the 10 WB to 110 NB direction serves as the mainline while 10 WB navigates a sharp 35 MPH curve to the left. Three lanes are allocated for 110 NB and two for 10 WB (one lane is shared).
I-55 in Memphis at the Crump Boulevard Interchange
I-215 near Riverside California
I-280 in Newark, NJ at First Street
I-95 SB Local lanes in Fort Lee, NJ where from the Upper Level GWB, the through lanes become NJ 4 while a single lane slip ramp exiting from the left carries I-95 SB to merge into the Lower Level Local Lanes.
I-5 CA exits off itself at US 101 at the East LA interchange, then at the CA 99 split in Wheeler Ridge, and also at the I-580 split near Tracy.
US 501 in Lynchburg is mostly an expressway, but it does exit itself 3 times.
Quote from: national highway 1 on April 01, 2012, 06:14:56 AM
I-5 CA exits off itself at US 101 at the East LA interchange, then at the CA 99 split in Wheeler Ridge, and also at the I-580 split near Tracy.
(Does anyone else suspect many of these "list all places where..." threads are "write only"? :meh:)
I don't know if I'd categorize Jct I-580 as an "TOTSO" - more like a lane split or left-exit.
I noticed quite a few of these on E70 while following directions from Cape Town to Bangkok on Google Earth.
Quote from: flowmotion on April 02, 2012, 09:41:06 PM
Quote from: national highway 1 on April 01, 2012, 06:14:56 AM
I-5 CA exits off itself at US 101 at the East LA interchange, then at the CA 99 split in Wheeler Ridge, and also at the I-580 split near Tracy.
(Does anyone else suspect many of these "list all places where..." threads are "write only"? :meh:)
I don't know if I'd categorize Jct I-580 as an "TOTSO" - more like a lane split or left-exit.
I actually noted 5/580 in the very first post of the thread - it's an interesting case because it wasn't planned as a mainline switch at all, but a split of a suffixed branch (the pre-1964 I-5W)! Only by circumstance did it become I-5 exiting off itself.
The rightmost lane at the 5/580 split is actually formed from the rest area entrance, and then another right lane forms shortly after. I'd say I-5 exits off itself.
Ah ok, but that kind of split is pretty common. It will be a long list.
Quote from: UptownRoadGeek on July 18, 2010, 04:25:37 AM
I-10 in Baton Rouge exits itself as the mainline becomes I-12, at the New Orleans line it exits itself as the mainline becomes I-610, 3 miles later it exits itself again as the mainline becomes U.S. 90 Business, once in Slidell it exits itself one more time at the interchange with I-59.
I wouldn't consider the 10-12 Split a TOTSO myself, since it fits with proper traffic flow (left lanes exit to I-12, right-lanes stay on I-10).
The 10-110 Split in BR, on the other hand, is the Mutha of ALL TOTSO's...not to mention that one of the "through lanes" ultimately becomes the Washington Street exit. Never liked that setup at all, and would love LaDOTD to consider a total redo of that interchange (similar to what is now at I-10/US 69 in Beaumont).
Anthony
Quote from: Anthony_JK on April 04, 2012, 11:46:36 PMMutha of ALL TOTSO's...
I've always considered I-95 cloverleafing off itself
without even a continuing through route in Canton, MA to win that prize.
Quote from: agentsteel53 on April 04, 2012, 11:50:33 PM
Quote from: Anthony_JK on April 04, 2012, 11:46:36 PMMutha of ALL TOTSO's...
I've always considered I-95 cloverleafing off itself without even a continuing through route in Canton, MA to win that prize.
That's been a trumpet for some time, now. How about I-278 following a one-lane exit onto a PARKWAY, forcing trucks to exit?
Quote from: Steve on April 05, 2012, 06:58:01 AM
That's been a trumpet for some time, now. How about I-278 following a one-lane exit onto a PARKWAY, forcing trucks to exit?
really? shows how long ago I last took that exit. I believe in 2006 it was still the old self-clover.
I-278 is the Mutha of all terribly executed interstates in general.
I- 83 does this twice in PA. It used to be 3, but the Business I-83 ramp interchange in York has been reconfigured.
I-83 SB exits itself at PA 581 in Camp Hill, PA.
I-83 SB exits itself at I-283.
In Maryland, you have it exit in both directions off of I-695, where it briefly duplexes with the Baltimore Beltway.
Northbound US-31 does it twice in Michigan; the first is at Napier Ave east of Benton Harbor (disputed case, as the pavement is unused beyond that interchange) and the second is at US-10 east of Ludington (US-31 exits off to the right as the road straight ahead feeds into WB US-10). And to make it stranger: Both exits are numbered (Exit 24 in Benton Harbor; Exits 170AB in Ludington)
I-496 in Lansing (at US-127/Trowbridge) is another example.
I-69 at both ends of its concurrency with I-96.
EB I-96 just past Alpine Ave in Walker/Grand Rapids veers off to the left while (unsigned) I-296 goes straight.
I-85 will probably do this in Montgomery when/if the southern loop is finished.
I-465 does this over and over again as you go counterclockwise.
Quote from: agentsteel53 on April 05, 2012, 11:11:01 AM
Quote from: Steve on April 05, 2012, 06:58:01 AM
That's been a trumpet for some time, now. How about I-278 following a one-lane exit onto a PARKWAY, forcing trucks to exit?
really? shows how long ago I last took that exit. I believe in 2006 it was still the old self-clover.
I-278 is the Mutha of all terribly executed interstates in general.
If you are staying on 95 NB you do use what was built as a cloverleaf ramp; the cloverleap ramp from then-128 NB to 95 SB had a nasty weave with that one and it was replaced with a trumpet ramp some time ago. So maybe you can both be considered right--the ramp to stay on 95 NB was built as a cloverleap loop and is now the inner 270° loop of the trumpet. The other loop on the same side of 128 was replaced by the outer trumpet ramp (now I-93 SB to I-95 SB).
Quote from: bugo on July 17, 2010, 04:08:33 PM
I-44 in OKC exits off itself several times.
It also exits off itself westbound at US 412 and the Creek Turnpike in Catoosa.
I-95 in Fort Lee, NJ does it if you are using the Upper Level on the GWB and heading to the Local Lanes. It takes a left exit into a one lane down grade at the NJ 4 diverge with NJ 4 taking all of the I-95 lanes and leaving you exit to the left.
When I was a small child, I used to often wonder what that was about as I would see my dad traveling a straight through freeway and then pass through this one lane ramp and then merge with the same roadway we were just on so to speak. I then learned that I-95 upper level is designed in both directions for the Upper Level Bridge and the Express lanes of I-95 & eventually I-80 to default into each other. In fact there is no access to the lower level of the GWB from I-95 NB Express lanes whatsoever. However, the the SB Upper Level does at least have this one lane left exit right after the Express- Local split where it is 50/50 in travel lanes, but nonetheless still designed for more traffic to use the I-95 Express lanes or NJ 4 WB from that level.
Wow, I-35W in the Twin Cities survives through all apparent TOTSOs. Without counting both splits, I counted a grand total of four mainline switches on southbound I-35 and another four on northbound, all located on the central section.
I-240 (NC) arguably does this twice, with TOTSOs at US-19/23 and future 26.
Quote from: TheStranger on July 17, 2010, 08:35:58 PM
Interstate 95 is the one route I think does this quite a bit:
- I-495 in Virginia (southbound, this has become a left-hand continuation, but it may have been a true all-right-exit switchover at one point)
It was once right-hand "exits off" for northbound and southbound at the Springfield Interchange. The massive reconstruction there changed that. Remember that present-day I-395 was once signed as I-95 before it was cancelled between New York Avenue, N.W. in D.C. and the Capital Beltway.
Quote from: TheStranger on July 17, 2010, 08:35:58 PM
- I-495 in Maryland (I think this may have been intended as a southbound left exit even before 95 into DC was canceled)
No, southbound it was an "exit off" to the right originally, or continue straight ahead and then a near-"U" turn, where the park-and-ride lot and truck weigh inspection station are now located. Those are still there, but the main movement is now to the left on a flyover built years after the interchange. Northbound, I-95 traffic has always exited off the Outer Loop of the Capital Beltway.
Quote from: TheStranger on July 17, 2010, 08:35:58 PM
- I-895 in Rosedale, Maryland north of Baltimore
Not any longer. Southbound I-895 now exits on the right, and I-95 goes straight ahead (to the left) - GSV here (https://maps.google.com/maps?q=rosedale+md&ll=39.322911,-76.530204&spn=0.018558,0.038581&hnear=Rosedale,+Baltimore,+Maryland&gl=us&t=h&z=15&layer=c&cbll=39.322869,-76.530269&panoid=us8iEv3K9-X80TBaJUwIlg&cbp=12,220.92,,0,7.31). Even northbound, where there are no exits, I-895 traffic now enters I-95 on the right.
Quote from: TheStranger on July 17, 2010, 08:35:58 PM
- not sure if I-395 in Groton, Connecticut counts (as I-95 continues southbound along left side)
I-95 goes to the right, presumably because I-395 (the Connecticut Turnpike) continues straight ahead. But because I-95 is only two lanes approaching, it does not seem to cause too much of a problem.
Quote from: TheStranger on July 17, 2010, 08:35:58 PM
- I-93/Route 128 in Dedham, Massachusetts
Northbound is effectively not changed since the interchange was constructed except for a massive flashing yellow arrow just before the (sharp) loop ramp where I-95 exits off itself.