 In the 1980s and 1990s commuter railroads where established in the Bay Area (Caltrain and Altamont Corridor Express), Los Angeles (Metrolink) and San Diego (Coaster) and light rail networks were built or expanded in most urban areas.The early 2000s saw the expansion in usage of passenger rail service and in 2008 voters approved plans for the construction of a high-speed rail network.After 1900, California continued to grow rapidly and soon became an agricultural and industrial power.