noun
railway turntable
A rotating platform used to turn locomotives or rolling stock in a rail yard or roundhouse.
蒸気機関車は転車台で方向を変えた。
The steam locomotive was turned around on the railway turntable.
狭い駐車場に転車台を設置して車の向きを変えやすくした。
They installed a car turntable in the narrow parking lot to make it easier to turn the vehicle around.