railway crossing gate; railroad crossing gate; level crossing gate
A barrier that lowers at a railway crossing to block vehicles and pedestrians when a train approaches.
Never cross the tracks while the crossing gate is down.
This railway crossing gate lowers automatically when a train approaches.
Standard kanji spelling for a railway crossing gate.
Variant with okurigana み; less common but still seen.
Compound of 踏切 (ふみきり, 'railway crossing') + 遮断機 (しゃだんき, 'barrier, gate').