macadam vs pave

macadam

verb
  • To cover or surface with macadam. 

noun
  • The surface of a road consisting of layers of crushed stone (usually tar-coated for modern traffic). 

pave

verb
  • To cover something with paving slabs. 

  • To cover with stone, concrete, blacktop or other solid covering, especially to aid travel. 

  • To pave the way for; to make easy and smooth. 

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