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[ethanman62187]

Some freeways even interstates are like this. This is much rarer than the ones that are undivided. Where is that?  What is the speed limit? 

[Steve]

The reason they're so rare is that you lose the ability to have either passing zones or room to maneuver in case of emergency. Two-lane divided roads in general are rare, let alone freeways. Yes, in terms of Interstates, you have I-93 in Franconia Notch and I-81 in the Thousand Islands. Here in NJ there's a county road called JFK Parkway that has a short divided two-lane expressway section. The beginning of Shore Pkwy. (leads into Belt Pkwy.) in Brooklyn is also two lanes divided.

[ethanman62187]

The reason they're so rare is that you lose the ability to have either passing zones or room to maneuver in case of emergency. Two-lane divided roads in general are rare, let alone freeways. Yes, in terms of Interstates, you have I-93 in Franconia Notch and I-81 in the Thousand Islands. Here in NJ there's a county road called JFK Parkway that has a short divided two-lane expressway section. The beginning of Shore Pkwy. (leads into Belt Pkwy.) in Brooklyn is also two lanes divided.

What are the speed limits on all of those roads?