empty coaching stock

uncountable

(rail transport) A train consisting of empty passenger carriages or one or more empty multiple units. Abbreviated as ECS.

Japanese Meaning

（鉄道）空になっている客車や空の複数ユニットで構成される列車（ECS: Empty Coaching Stock）

Late at night, the empty coaching stock rolled silently past the depot, bound for the maintenance yard.

深夜、空の客車編成が静かに車庫の横を通り過ぎ、整備ヤードへ向かった。

Sense（1）

(rail transport) A train consisting of empty passenger carriages or one or more empty multiple units. Abbreviated as ECS.