The always-interesting Infrastructurist blog has a great article on the various types of highway interchanges. Even though I grew up in Southern California, I had no idea there were so many of them. My favorite:
The Lofthouse: A roundabout over two grade-separated highways. Less expensive than than a stacked interchange, but also has much lower capacity.
ARTICLE: What’s A ‘Spooey’? A Field Guide To Freeway Interchanges, Part 1
(via BoingBoing)


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