crosswalk vs pedestrian crossing

crosswalk

noun
  • A point designated for pedestrians to cross a street. 

  • A mapping between equivalent elements (fields) in different database schemas. 

verb
  • To map equivalent elements (fields) in different database schemas. 

pedestrian crossing

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

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