carriageway vs zebra crossing

carriageway

noun
  • The part of a road that carries traffic. 

  • One side of a dual carriageway that carries traffic in a single direction. 

zebra crossing

noun
  • A pedestrian crossing featuring broad white stripes painted parallel to the street. 

How often have the words carriageway and zebra crossing occurred in a corpus of books? (source: Google Ngram Viewer )