TRAIN PLATFORM LOCATED SECURITY SYSTEM

A dynamic train platform located security system comprises a single expanse of interconnectable and longitudinally displaceable, vertical barriers for isolating a passenger waiting area at a train station from a platform edge area, including at least two longitudinally spaced and openable portal modules for permitting passage through a corresponding central opening; and a control system for causing the single expanse to be longitudinally displaced in unison, in response to a detected stop position of a train that has arrived at the station, until each portal module central opening is aligned with corresponding doors of the arrived train. In one embodiment, the system further comprises, in conjunction with a drive unit for initiating controlled and aligned movement, a passageway directly extending from a corresponding portal module central opening to a door of the arrived train and over which elderly and handicapped passengers are able to walk without having to climb stairs.