Quickly, with minimal time between occurrences.

A commuter rail system that combines aspects of an interurban railway with those of a subway, using a menagerie of pathways such as viaduct, tunnel, beam, cut and cover, trench, at grade, and others.

A city, the county seat of Pennington County, South Dakota, United States.

One of 64 parishes in Louisiana, United States, the equivalent of a county in other US states. Its parish seat is in Alexandria.

plural of rapid transit

(chess) Chess played at a relatively quick time control, with each side getting about 15 minutes to make their moves.

(transport) A form of rapid transit using buses, which have dedicated rights-of-way or laneways, purpose-built bus stations, and dedicated traffic signalling.

Rapid movement of the eyes, characterising REM sleep

plural of bus rapid transit

(engineering, euphemistic) An explosion or breakup of a vehicle, usually an airplane or a rocket.