(しゃだんき)

しゃだんき
noun
railroad crossing gate; barrier
1. railroad crossing gate; barrier arm
The mechanical barrier at a railroad crossing that lowers to block traffic when a train is approaching.
遮断機(しゃだんき)()りた。
The crossing gate came down.
遮断機(しゃだんき)()がるまで()ってください。
Please wait until the crossing gate goes up.
遮断機(しゃだんき)()りているのに無理(むり)(わた)るのは非常(ひじょう)危険(きけん)です。
It's extremely dangerous to force your way across when the crossing gate is down.

USAGE:
遮断機(しゃだんき) specifically refers to the barrier arm at a 踏切(ふみきり) (railroad crossing). When the 遮断機(しゃだんき) comes down, it is accompanied by a 警報機(けいほうき) (warning bell/light).

COMMON COLLOCATIONS:

  • 遮断機(しゃだんき)()りる: the gate comes down
  • 遮断機(しゃだんき)()がる: the gate goes up
  • 遮断機(しゃだんき)をくぐる: to duck under the gate

WORD FORMATION:
遮断(しゃだん) (interruption, blocking) + () (machine).