The left-most lane, the passing lane, is the number one lane.

最左边的车道，超车道，是第一车道。

So, this overturned big rig is blocking the number two lane.

所以，这个翻倒的大钻机挡住了二号车道。

In fact, this big rig is blocking the number two lane.

事实上，这个大钻机挡住了二号车道。

The truck is blocking the number two lane.

卡车挡住了二号车道。

Sometimes when there are accidents, they will announce on the news that there is an accident blocking the number four lane.

有时候出事故，他们会在新闻上宣布， 四号车道发生事故。