Photograph of an electric sign on the Santa Monica Freeway warning drivers not to tailgate, January 24, 1974. The sign is at center and is located on the divider in the middle of the freeway. In the foreground, four lanes of traffic are visible, and an assortment of automobiles, including an Lincoln and a Mercedes, is visible. In the distance, a large sign indicates an upcoming interchange.; Legible signs include, from left to right: "Freeway Condition Don't Tailgate", "10 Santa Monica", "Long Beach Bakersfield 405 Jct 3/4 Mile", "Exit 4 Overland Ave", and "XRV 872 Foothill Motors".