扳道

yī jiān bān dào fáng

一间扳道房

a switchman's cabin

yī míng bān dào gōng

一名扳道工

a pointsman

bān dào gōng bǎ màn chē wù rèn wéi kuài chē le

扳道工把慢车误认为快车了。

The switchman mistook the slow train for the express train.

xīn lái de rén shū hu zhí shǒu méi yǒu bān dào ér shǐ liǎng liè huǒ chē xiāng zhuàng le

新来的人疏忽职守没有扳道而使两列火车相撞了。

The new man was asleep at the switch and the two trains crashed.