The "Capitol Corridor" is used by commuters between the Sacramento area and the Bay Area as an alternative to driving on congested Interstate 80. Monthly passes and discounted trip tickets are available. Many politicians, lobbyists, and aides live in the Bay Area and commute to their jobs in Sacramento, including those connecting to the train via Amtrak Thruway Motorcoach from San Francisco, while workers in the Oakland, San Francisco, and Silicon Valley employment centers take the "Capitol Corridor" trains from their less expensive homes in Solano County and the Sacramento metropolitan area.