India’s Road Building Boom

[Road Hog]

The 63 kilometer Lucknow - Kanpur Expressway opened to traffic today. Lucknow is a city of 2.9 million and Kanpur 2.5 million.

A weird situation arises with the intersection with the Ganga Expressway. Because it was built by different governments, they couldn't agree on constructing an interchange between the two expressways, which is very much needed, because traffic from these cities cannot access the Ganga Expressway directly.

Maybe this will be a great opportunity to build the first freeway-to-freeway roundabout. Seen it postulated, but not in the field yet.

[Plutonic Panda]

Why not a stack interchange that would be better.

[Chris]

Freeway-to-freeway roundabouts were common in the Netherlands during the 1950s and early 1960s. Some of them still exist, though flyovers have been built.

The UK still has many motorway-to-motorway interchanges with roundabouts, though usually at least the main direction has overpasses.

1959 (A2/A12 at Utrecht):