Of course we all know that interchanges have things like loop ramps, where you turn right in order to make a left-turn movement to another highway. But sometimes, you need to turn left in order to go right, when a short directional ramp could've been used for the same movement. Here are three examples - the first two are over 4km which means about 4 extra minutes of driving. The third interestingly has a direct ramp for the express lane but not general purpose lanes.
I-90W to I-91S: https://www.google.com/maps/dir/42.1531289,-72.6486536/42.1528643,-72.6480637/@42.1581547,-72.6411325,2492m/data=!3m1!1e3!4m2!4m1!3e0
BR-050N to SP-021E: https://www.google.com/maps/dir/-23.7639448,-46.5339832/-23.7634078,-46.5333721/@-23.7567448,-46.5373912,2648m/data=!3m1!1e3!4m2!4m1!3e0
Florida TP S to I-595W: https://www.google.com/maps/dir/26.0926158,-80.2170153/26.0916001,-80.2181534/@26.087317,-80.2143156,2096m/data=!3m1!1e3!4m2!4m1!3e0
Not that complicated, but EB Main St to Memorial Drive in Cambridge, MA infamously requires a left-to-go-right movement.
Quote from: Rothman on October 04, 2025, 08:17:23 PMNot that complicated, but EB Main St to Memorial Drive in Cambridge, MA infamously requires a left-to-go-right movement.
I don't see that. The last turn off EB Main before the bridge is a hairpin right onto the beginning of WB Mem Dr.
Quote from: pderocco on October 04, 2025, 09:45:26 PMQuote from: Rothman on October 04, 2025, 08:17:23 PMNot that complicated, but EB Main St to Memorial Drive in Cambridge, MA infamously requires a left-to-go-right movement.
I don't see that. The last turn off EB Main before the bridge is a hairpin right onto the beginning of WB Mem Dr.
I think it was a typo: the stated movement doesn't require a left, but Memorial Drive to Main St. does.
Eastbound WIS 64 to southbound WIS 35 outside New Richmond, WI:
https://www.google.com/maps/dir/45.0468891,-92.7806835/45.0470177,-92.780198/@45.0543271,-92.7889759,2038m/data=!3m1!1e3!4m2!4m1!3e0?entry=ttu&g_ep=EgoyMDI1MTAwMS4wIKXMDSoASAFQAw%3D%3D
Quote from: hotdogPi on October 04, 2025, 09:49:56 PMQuote from: pderocco on October 04, 2025, 09:45:26 PMQuote from: Rothman on October 04, 2025, 08:17:23 PMNot that complicated, but EB Main St to Memorial Drive in Cambridge, MA infamously requires a left-to-go-right movement.
I don't see that. The last turn off EB Main before the bridge is a hairpin right onto the beginning of WB Mem Dr.
I think it was a typo: the stated movement doesn't require a left, but Memorial Drive to Main St. does.
That makes sense. Of course, technically, it's a left at the split to stay on Mem Dr, because right at the split is Land Blvd. So it's just a right turn from the end of Mem Dr onto the bridge.
I'll nominate:
- SB I-355 to WB I-88 in Illinois. (https://maps.app.goo.gl/eoWfj2Lzf6dRrVyC6) Most other locations this would be a simple ramp, but probably due to the nearby Morton Arboretum this movement crosses over I-355 before merging with I-88.
- NB I-65 to EB I-90/Indiana Toll Road. (https://maps.app.goo.gl/poNpsqaTem67Fr3J6) There's no left turns involved but a lot more right turns for what could be handled by a more direct ramp.
I am not sure what drivers do to legally turn right on Califonia Incline from North bound PCH. I guess that locals do not need this.
In this example, from CT 3 NB, one must back-track one exit north on I-91, turn left under the underpass, then left onto the Marsh St. onramp, to use I-91 SB.
https://maps.app.goo.gl/cLNpHFNHAjd8ZfdK8
Quote from: pderocco on October 04, 2025, 10:34:20 PMQuote from: hotdogPi on October 04, 2025, 09:49:56 PMQuote from: pderocco on October 04, 2025, 09:45:26 PMQuote from: Rothman on October 04, 2025, 08:17:23 PMNot that complicated, but EB Main St to Memorial Drive in Cambridge, MA infamously requires a left-to-go-right movement.
I don't see that. The last turn off EB Main before the bridge is a hairpin right onto the beginning of WB Mem Dr.
I think it was a typo: the stated movement doesn't require a left, but Memorial Drive to Main St. does.
That makes sense. Of course, technically, it's a left at the split to stay on Mem Dr, because right at the split is Land Blvd. So it's just a right turn from the end of Mem Dr onto the bridge.
Yeah, that's not exactly what I was thinking of for the post, since it doesn't take much more distance than it would if it was a direct right turn. Examples where you keep left to turn right are pretty common, like 905 WB to I-5NB in San Diego. https://www.google.com/maps/@32.5663628,-117.0716165,718m/data=!3m1!1e3
Quote from: Revive 755 on October 04, 2025, 11:03:10 PMI'll nominate:
- SB I-355 to WB I-88 in Illinois. (https://maps.app.goo.gl/eoWfj2Lzf6dRrVyC6) Most other locations this would be a simple ramp, but probably due to the nearby Morton Arboretum this movement crosses over I-355 before merging with I-88.
- NB I-65 to EB I-90/Indiana Toll Road. (https://maps.app.goo.gl/poNpsqaTem67Fr3J6) There's no left turns involved but a lot more right turns for what could be handled by a more direct ramp.
Well the loop to enter I-90 is a 270° right-turn so that could be considered a left.
And I found this one that's almost exactly the same movement. https://www.google.com/maps/dir/42.5159987,-71.0019394/42.519994,-70.9927641/@42.5184916,-70.9999267,1249m/data=!3m2!1e3!4b1!4m2!4m1!3e0
Quote from: kendancy66 on October 05, 2025, 05:29:37 AMI am not sure what drivers do to legally turn right on Califonia Incline from North bound PCH. I guess that locals do not need this.
They petition their city councillor. Or just make the turn at 4am when no one's looking.