This is about real physical traffic, as in the movement of people. Not web traffic. This is not an article about how Facebook can help your search marketing efforts.
Long time readers know I once worked for Sun Microsystems at the Menlo Park campus now leased by Facebook. Known as “Sun Quentin” for its prison-like exterior and remote location along the San Francisco Bay Wildlife Refuge, the 57 acre campus was built between 1993 and 1995 after Menlo Park’s redevelopment agency enticed Sun to move its corporate headquarters there. I don’t know the history of these enticements, but relatively easy access to Highway 101 and the Dumbarton Bridge likely were mentioned.