Look up rapid transit in Wiktionary, the free dictionary.
Rapid transit is a type of mass transit system in an urban area with high capacity, high frequency not needing timetables, is fast and is segregated from other traffic.
Rapid transit may also refer to:
Bus rapid transit, a term applied to a variety of public transportation systems using buses
Personal rapid transit, a term applied to a variety of public transportation systems using specially built guideways