#highway__main_road  a major road for any form of motor transport
  supertype:  #route__road  an open way (generally public) for travel or transportation
  part:  #interchange  #traffic_lane
  subtype:  #Appian_Way  an ancient Roman road in Italy extending south from Rome to Brindisi; begun in 312 BC
  subtype:  #arterial_road  (British) a major or main route
  subtype:  #divided_highway__dividedhighway__dual_carriageway  a highway divided down the middle by a barrier that separates traffic going in different directions; "in England they call a divided highway a dual carriageway"
  subtype:  #expressway__freeway__motorway__pike__state_highway__statehighway__superhighway__throughway__thruway  a broad highway designed for high-speed traffic
     subtype:  #autobahn  an expressway in a German-speaking country
     subtype:  #autostrada  an expressway in an Italian-speaking country
     subtype:  #turnpike.expressway  an expressway on which tolls are collected
  subtype:  #Flaminian_Way  an ancient Roman road in Italy built by Gaius Flaminius in 220 BC; extends north from Rome to Cisalpine Gaul
  subtype:  #highroad__trunk_road__trunkroad  (British) a highway

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