The California High-Speed Rail project is a proposed high-speed rail system in the state of California. The system is being planned by the California High-Speed Rail Authority, which will design, build, and operate the system. If built, high-speed trains capable of 220 mph (350 km/h) will link San Francisco and Los Angeles in as little as two and a half hours. The proposed system would also serve other major Calfornia cities, such as Sacramento, San Jose, Fresno and San Diego.
An implementation plan approved in August 2005 estimated that it would take eight to eleven years to "develop and begin operation of an initial segment of the California high-speed train."