Reciprocity Whenever human activities incorporate machines or rigidly prescribed procedures, the modes of human interaction change. In general, technical arrangements reduce or eliminate reciprocity. Reciprocity is some manner of interactive give and take, a genuine communication among interacting parties. Ursula M. Franklin, The Real World of Technology reciprocity
New Urbanism and Beyond: Designing Cities for the Future A Book by Tigran Haas books.google.com New-urbanist projects urbanismcitiesarchitecture