Smoothest Interstate-to-interstate Transitions

[nwi_navigator_1181]

Good evening to you all.

Are there any interstate to interstate movements where you live that feel completely seamless and stress-free (meaning, no necessary drops in speed or potentially dangerous lane changes)?

An example: the movement from I-85 South to I-185 South near Lagrange, Georgia; the ramp is a smooth and gradual curve where drivers can maintain 70+ mph without worry and with minimal traffic. (I seem to recall no yellow speed advisory sign at the base of the ramp the last time I drove that ramp heading to Columbus.)

Any other examples? Thank you in advance for your responses.

[SteveG1988]

I-276 to I-76 on the PA turnpike, super smooth without any drop in speed.

Seriously tho, NJ Turnpike PA Extension to the mainline is actually decent, yes there is a drop in speed, but it is reasonable.

[NE2]

I-276 to I-76 on the PA turnpike, super smooth without any drop in speed.

I-276 to I-95 is even better, with no ramps to introduce potential conflicts.

[pianocello]

The connections between I-280 and eastbound I-80 in Davenport, IA are pretty seamless. The westbound exit/entrance would be as well if it weren't for the fact that they're both on the left.

On paper, the interchange between I-80 and the Tri-State in the southern suburbs of Chicago should be smooth, but there aren't nearly enough lanes to stay on I-80.

I applaud MDOT (Michigan) for the geometry of the ramps on both of the I-69/96 interchanges. The southern junction is one of the biggest trumpets that I know of, but it's worth not having to slow down at all in order to stay on I-69.

[JustDrive]

5/805 split in Sorrento Valley.  Also, 580/205 at the east end of the Altamont Pass.

[Darkchylde]

I-435 East to I-470. The transition is flawless. Same goes for I-49 North to I-435 North, IMO.

[Kniwt]

I-280 south to I-680 north in San Jose.

[xcellntbuy]

To and from Interstates 75 and 595 (plus FL 869/Sawgrass Expressway) in Sunrise, FL.

[vdeane]

I-81 south to I-86 east leaving Binghamton

[Brian556]

I-24 EB to I-75 NB in Chattanooga.

[Laura]

I-276 to I-76 on the PA turnpike, super smooth without any drop in speed.

I-276 to I-95 is even better, with no ramps to introduce potential conflicts.

Even better is the interchange with I-70, I-76, and US 30. No need to merge in and out of the rest area when everyone has the privilege of passing through it.

[mhh]

They're not Interstates, but they're built to Interstate standards: Hwy. 402 to Hwy. 401 in London, Ontario.

[NE2]

I'm talking about the transition from I-276 east to I-95 north (not yet signed as such).

[Alps]

I-95 to I-195, NJ
I-80 to I-287, NJ
I-87 to I-95, NY

[bugo]

I-44/244 (eastern junction)

[SteveG1988]

I-55/70 to the new I70 in East St Louis IL, very well designed and laid out setup going west.

I-57 and most of the multiplexes it has are smooth...or will be once the roadwork is done.

NJ90 to NJ73 is really smooth, not an interstate, but NJ90 is built to a decent standard.

NJ55 to NJ42, same thing. slight speed drop.

Atlantic City Expressway to NJ42, same thing

I-295 North to I-195 East, very smooth and fast ramp in NJ, but it is mostly a cloverleaf with a flyunder ramp for that movement, NJ29 south to 295 South is pretty decent too, long diagonal ramp/bridge.

[hbelkins]

I-255 to I-270, Missouri.

I-64 to I-664, Virginia. (The interchange south of the James River).

I-69 to I-164, Indiana.





Seriously, I-77 north to I-79 north, and I-64 east to I-77 north, in Charleston, WV.

I-71 south to I-64 west in Louisville.

[cl94]

Unless otherwise specified, the reverse movement is included:

• I-87 south to I-287/NJ 17, New York
• I-86 west to I-390, New York
• I-90 west to I-271 east of Cleveland, Ohio
• I-79 to I-279, Pennsylvania
• I-70 to I-670, Ohio
• I-87 north to I-90 west, New York

[Beeper1]

I-395/I-290 in MA

[Ian]

The ramps for the I-93 mainline where it "exits itself" at the north end of I-293 north of Manchester, NH are fairly smooth.
http://goo.gl/maps/dXsmO

[The Nature Boy]

The ramps for the I-93 mainline where it "exits itself" at the north end of I-293 north of Manchester, NH are fairly smooth.
http://goo.gl/maps/dXsmO

All of the exits of that nature are handled really well in the Manchester area. The exits onto the Everett Turnpike and NH 101 are also pretty smooth.

[bmeiser]

The "splits" in Indianapolis for I-65/I-70 are relatively smooth, speed-wise.

[Brian556]

quote from cl 94:

the reverse movement is included:

What is a reverse movement? When a turd sucks back up into your hole?

[briantroutman]

I-81 North to I-78 East and I-78 West to I-81 South.

[NE2]

quote from cl 94:

the reverse movement is included:

What is a reverse movement? When a turd sucks back up into your hole?

))<>((