California Code, Streets and Highways Code - SHC § 10100.5

(a) Works,systems or facilities for the transportation of people, designed to serve an area of not to exceed three square miles, including rolling stock and other equipment appurtenant thereto.

(b) All other work auxiliary to any of the above, which may be required to carry out the same, including, but not limited to, terminal and intermediate stations, structures, or platforms or other facilities which may be necessary for the loading of people into and unloading of people from such transportation facilities.

(c) Acquisition of any and all property, easements, and rights-of-way which may be required to carry out the purposes of the project.