noun, noun or participle which takes 'suru'
switching; shunting
Railway term for moving a rail car from one track to another, especially in a yard or depot. Often used with する.
駅の構内で貨車を転轍する。
They shunt freight cars within the station yard.
入換 is a more general term for shunting or switching, while 転轍 specifically refers to the action of moving a rail car using a switch or points.
Compound of 転 (turn, change) and 轍 (rut, wheel track), referring to changing the track of a rail car.