in the north. Many highways have tolled express lanes, paid for by using FasTrak. Streets within the Bay Area vary from wider stroads such as El Camino Real in the Peninsula, to denser slower streets within urban cores, to scenic routes like California State Route 1. However, San Francisco has historically approached freeways with hostility, and activists have moved to stop the construction of new highways and tear down existing ones, most notably inciting the 1991 demolition of the Embarcadero Freeway. The city today is seen as the birthplace of American highway revolts. Airports The Bay Area has four airports served by commercial airlines, three of which are international airports. In addition to these airports, there are many general aviation airports in the region. San Francisco International Airport (SFO) The busiest in the region, and a major international hub airport in California second only to LAX (Los Angeles). Hub for United Airlines and Alaska Airlines. San Jose International Airport (SJC) The second-busiest and fastest-growing airport in the Bay Area. It serves as a focus city for Alaska Airlines. Oakland International Airport (OAK) The third-busiest airport in the region and a base for Southwest Airlines. Oakland International Airport is the oldest of the Bay Area's civilian airports still in use. The site was chosen due to good weather conditions for aircraft operations. Charles M. Schulz–Sonoma County Airport (STS) The smallest of the Bay Area airports served by commercial airlines. Airport Transportation All major Bay Area airports are situated next to freeways and are served by public transportation, ride-share services, and various private shuttle bus operators. Major airport/public transportation connections San Francisco can be directly accessed through BART at the SFO station at the International Terminal. Using BART, riders can also transfer to Caltrain at the nearby Millbrae station. SFO also has an inter-terminal AirTrain service. San Jose can be accessed by VTA Route , which connects to BART, Caltrain, VTA light rail and other bus and rail services at the Santa Clara Transit Center, Metro/Airport station and Milpitas station. The airport also operates an inter-terminal shuttle bus. Oakland Airport is connected to BART by the Oakland Airport Connector between the airport and Coliseum station. Sonoma County Airport is directly connected to SMART commuter rail at the Sonoma County Airport station. Public transportation Public transportation in the San Francisco Bay Area is quite extensive, including one rapid transit system, three commuter rail