Passenger transportation services, usually local in scope, that is available to any person who pays a prescribed fare. It operates on established schedules along designated routes or lines with specific stops and is designed to move relatively large numbers of people at one time. (TRB1)

Passenger transportation services, local, metropolitan or regional in scope, that are available to any person who pays a prescribed fare. Also, transportation by bus, rail or other conveyance, either publicly or privately owned, which is provided to the public or specialty service on a regular and continuing basis. Also known as "mass transit," "mass transportation," "public transportation" and "transit."

a public transportation system for moving passengers