tracklaying

noun

1. (uncountable)The work that involves putting the track in place.

   “The renewal of track by cranes and special tracklaying machines which lift out entire 60 ft. lengths of old track and lay in pre-assembled 60 ft. lengths of new, allows the process of renewal to proceed at a considerably faster rate than possible by older methods.”

   “Bottom ballasting paved the way for the start of tracklaying in March and this £250,000 contract was scheduled for completion in 48 weeks.”