expressway vs toll road

expressway

noun
  • A road built to freeway standards. 

  • A divided highway, especially one whose intersections and direct access to adjacent properties have been eliminated. 

  • A road built for high speed traffic, but not up to motorway standards or designated a motorway. 

toll road

noun
  • A road for the use of which a toll must be paid; a turnpike. 

How often have the words expressway and toll road occurred in a corpus of books? (source: Google Ngram Viewer )