Everybody knows what a cloverleaf looks like — but could you identify a volleyball, a double trumpet, or a “spooey” if you drove on one in the course of your highway travels? These are among the distinctive designs that transportation engineers have conjured up to keep traffic flowing and motorists headed in the right direction when major roads intersect.
Above: The Braid - This Maryland interchange is a stack design, but what’s unique about it is that the north and southbound segments of I-95 and east- and westbound segments of I-695 are actually braided over each other briefly in the middle of the interchange.
(via What’s A ‘Spooey’? A Field Guide To Freeway Interchanges, Part 1 » INFRASTRUCTURIST)
