LOS ANGELES (AP) — The California High-Speed Rail Authority board has agreed to look into sharing track with other passenger trains along the Los Angeles to Anaheim rail corridor.

Proponents say such a move could prevent the loss of hundreds of homes and businesses and save billions in construction.

It could also lead to upgrading tracks currently used by Amtrak and Metrolink and the construction of overpasses and underpasses.

Such improvements would meet a criteria that the projects funded by the federal government's $2.25 billion high-speed rail grant provide some practical use, even if the bullet train plan doesn't pan out.

California hopes to have a high-speed train running from San Francisco to Anaheim by 2020. A second phase would extend the system to Sacramento and San Diego by 2026.

Copyright 2010 The Associated Press.