The San Joaquin intercity passenger rail service reached an all-time ridership record for the four-month period from November 1, 2009, through February 28, 2010 — more than 310,000 riders boarded trains, a 6.6 percent increase from the same period in 2008-09, Caltrans announced in a release Tuesday.

California is home to the second (Pacific Surfliner), third (Capitol Corridor) and fifth (San Joaquin) busiest intercity passenger rail corridors in the nation. The state, in partnership with Amtrak, provides service on these rail corridors. The Pacific Surfliner connects San Luis Obispo with San Diego via Santa Barbara and Los Angeles. The Capitol Corridor links the Bay Area with Sacramento and Auburn. The San Joaquin line serves the Central Valley, linking Los Angeles and Bakersfield with Sacramento and the Bay Area.

With 5 million annual passengers, California has more than 20 percent of all Amtrak riders. Since 1990, the state has invested more than $1.3 billion in infrastructure and equipment for intercity passenger rail, and about $1 billion in operating support, Caltrans said.

Contact Kim Santos at 925-847-2129.