"Welcome to the Traffic Data Branch - 2012AADT link". California Department of Transportation. [1] Konsultita la 21a de julio 2015.
bata.mtc.ca.gov
"Bridge Facts San Francisco-Oakland Bay Bridge". Bay Area Toll Authority, 43.4 million toll-paid vehicles (86.8 million trips) annually. 2013. [2]Arkivigite je 2013-09-21 per la retarkivo Wayback Machine Konsultita la 21a de julio 2015.
"Bridge Facts San Francisco-Oakland Bay Bridge". Bay Area Toll Authority, 43.4 million toll-paid vehicles (86.8 million trips) annually. 2013. [2]Arkivigite je 2013-09-21 per la retarkivo Wayback Machine Konsultita la 21a de julio 2015.