main road vs pedestrian crossing

main road

noun
  • High Street; Main Street 

  • priority road; A road with entering traffic which must yield right of way 

  • A major road in a town or village, or in a country area. 

  • A major urban road, off which lead many smaller streets, many of them cul-de-sacs. 

pedestrian crossing

noun
  • A place where pedestrians are permitted to or advised to cross a street. 

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