YSK that when in heavy traffic and a lane is closing, using the closing lane until it ends is not cutting in line but actually improving the flow of traffic (aka the "zipper merge")
from /r/YouShouldKnow
YSK认为,当交通繁忙,一条车道关闭时,使用关闭的车道直到它结束,并不是插队,而是实际上改善了交通流(又称 "拉链式并线")。