043018HuntingtonBeachCaTripMP0004
SHOT 4/27/18 8:10:18 AM - A Cloverleaf interchange outside of Denver, Co. Cloverleaf interchanges viewed from overhead or on maps, resemble the leaves of a four-leaf clover or less often a 3-leaf clover. In the United States, cloverleaf interchanges existed long before the interstate system. They were originally created for busier interchanges that the original diamond interchange system could not handle. Their chief advantage was that they were free-flowing and did not require the use of such devices as traffic signals. (Photo by Marc Piscotty / © 2018)
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