Abstract: Disclosed is a turntable assembly adapted to be concentrically positioned among a plurality of radially aligned pairs of outer railways for reducing rail car dwell time, physical distribution, transportation, and efficiently handling railway railcars in rail yards. The turntable assembly comprises a fixed mounted platform having a central railway in the form of a plurality of perpendicular crossing railway tracks, an azimuthally rotatable annular frame circumscribing the rotatably mounted platform and having a spaced plurality of radially disposed intermediate railways segregated into aligned pairs for selectively aligning with different pairs of outer railways and perpendicularly crossing railways tracks. The turntable assembly allows placing of multiple railcars on turntables simply by repositioning the turntables to accept new railcars without removing existing railcars and capable of acting as a bypass for traffic on the feeder track.