noun
classification yard; marshalling yard; switchyard
Railway term for a yard where trains are sorted, assembled, or stored.
貨物列車は操車場で仕分けされる。
Freight trains are sorted at the classification yard.
車両基地 is a broader term for a rolling stock depot, including maintenance facilities; 操車場 focuses on sorting and assembling trains.
Compound of 操車 (sōsha, 'train operation') + 場 (jō, 'place'). The exact historical derivation is uncertain, but the term is a standard modern railway term.