Transportation in the San Francisco Bay Area

People in the San Francisco Bay Area rely on a complex multimodal transportation infrastructure consisting of roads, bridges, highways, rail, tunnels, airports, seaports, and bike and pedestrian paths. The development, maintenance, and operation of these different modes of transportation are overseen by various agencies, including Caltrans, the Association of Bay Area Governments, San Francisco Municipal Transportation Agency, and the Metropolitan Transportation Commission.

Source: Wikipedia — Transportation in the San Francisco Bay Area (CC BY-SA 4.0)