switchback

54 Moby Thesaurus words for "switchback":
      L, branch, cable railway, chevron, cog railway, crankiness,
      crookedness, dogleg, el, electric railway, elevated,
      elevated railway, embankment, feeder, feeder line, flexuosity,
      gravity-operated railway, hairpin, horse railway, junction,
      light railroad, line, main line, metro, monorail, rack railway,
      rack-and-pinion railway, rail, rail line, railroad, railway,
      roadbed, roadway, sidetrack, siding, street railway,
      streetcar line, subway, terminal, terminus, track, tram, tramline,
      trestle, trolley line, trunk, trunk line, tube, turnout,
      underground, zag, zig, zigzag, zigzaggery