This railway will be opened to traffic in May at the latest.

这条铁路至迟五月通车。

《新英汉大辞典》

The line is to be opened to traffic next week.

这条铁路将在下周通车。

youdao

The road is going to be opened to traffic on May Day.

这条快速公路已于二月十九日通车。

youdao

The Castlegate could also be opened to traffic, with Broad Street shut to create a new civic square.

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Last Sunday, an overflow car park in a grass field adjacent to the site had to be opened to accommodate the stream of traffic even though it was rainy day.

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The road was opened to some traffic a few days later, only to be blocked again by another mudslide.

ECONOMIST: Endless rain exacts a heavy toll