crosswalk vs traversal

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. 

traversal

noun
  • The act of traversing; a crossing 

  • The act of following a path or route. 

  • The product or result of traversing. 

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