alleyway vs pedestrian crossing

alleyway

noun
  • A narrow street formed by the proximity of adjacent buildings. 

  • A passage between two rows of cabins in a ship. 

pedestrian crossing

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

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