bras d’éloignement
/ˈtɛt dy- veʁˈɛ̃ də- ləvˈaʒ/
n
English: crossing arm · 道口栏杆
Sens：Pivoting rod deployed at each stop so that the schoolchildren stay in the driver’s field of vision while passing in front of the bus.
English: crossing arm · 道口栏杆