折返(おりかえ)し運転(うんてん)

おりかえしうんてん
noun
shuttle operation; partial operation with turnback
transportation
1. shuttle operation; partial operation with turnback (trains, buses)
The practice of operating trains or buses only along part of a line and turning them back before the usual terminus, typically because a section further along is blocked by an accident, weather, or other disruption.
事故(じこ)のため折返(おりかえ)し運転(うんてん)となっている。
Due to the accident, the line is running on shuttle operation.
大雨(おおあめ)で一部(いちぶ)区間(くかん)が折返(おりかえ)し運転(うんてん)になった。
Due to the heavy rain, part of the line went to shuttle operation.
Shuttle service is continuing between Tokyo Station and Shinagawa Station.
Due to a signal malfunction, we are operating shuttle service turning back at Shinjuku Station.

Composed of 折返(おりかえ)し (turning back, U-turn) + 運転(うんてん) (operation). A standard railway-announcement term in Japan used when a portion of a line is blocked and trains cannot run through to the normal terminus. Trains are instead operated back and forth between an intermediate station and one endpoint.

Common collocations

  • 折返(おりかえ)し運転(うんてん)を実施(じっし)する: to operate shuttle service
  • 折返(おりかえ)し運転(うんてん)となる: to go to shuttle operation
  • 折返(おりかえ)し運転(うんてん)区間(くかん): section under shuttle operation
  • 折返(おりかえ)し運転(うんてん)中(ちゅう): currently operating shuttle service

Related words

Usage

Heard frequently in Japanese train-line status updates ("山手線(やまのてせん)は折返(おりかえ)し運転(うんてん)を実施(じっし)しています"). Passengers may need to change trains or use alternative routes beyond the turnback point.