#carriageway  (British) one of the two sides of a motorway where traffic travels in one direction only usually in two or three lanes
  supertype:  roadway  a road (especially that part of a road) over which vehicles travel
  part of:  expressway__freeway__motorway__pike__state_highway__statehighway__superhighway__throughway__thruway  a broad highway designed for high-speed traffic

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