four-tracked

four-tracked (not comparable)

1. (rail transport) Having four running lines, usually two in each direction.

   Synonym: four-track

   • 2020 December 2, Christian Wolmar, “Wales offers us a glimpse of an integrated transport policy”, in Rail, page 57:

     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.

• four-tracking