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Pronunciation varies by accent · adjective
(rail transport) Having four running lines, usually two in each direction..
The existing railway is already four-tracked and rather underused. And while separating out the two separate fast and slower tracks will be complicated, it is by no means impossible - or even that expensive.
Use four-tracked when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Four-tracked means (rail transport) Having four running lines, usually two in each direction..
Common synonyms include four-track.
The opposite depends on the specific sense.
The existing railway is already four-tracked and rather underused. And while separating out the two separate fast and slower tracks will be complicated, it is by no means impossible - or even that expensive.
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