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Pinwheel Interchange v2

A high capacity interchange, for intersecting two major highways. Two lvls, 39 by 39 blocks exit to entrance. After some research, I think this is a "diverging windmill". Although none have been built yet IRL, it's a really strong design. It's particularly useful where traffic is agnostic about which direction it's going, since the left and right turns are done directly, with no grade changes or double backs, which is possible since both highways are double-crossed.

So, shorter than a stack, moderately small, the only disadvantage I can think of is that traffic entering from the left enters from a left side entrance, although it merges very early in the interchange, so there's plenty of room for it to switch lanes.

Requires NEP for those two lane highway segments. Also, I'd use no pillars, since otherwise they'll be in the middle of the highway :(. And I'd highly recommend using Traffic Manager to make it flow smoother, when I was testing this, CS' wonky traffic AI did weird things before I used the lane connector feature to make sure they were using the proper lanes.