Thesis (M. Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 1982. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND ROTCH. / Includes bibliographical references (p. 142). / This thesis ascertains what morphological and functional characteristics are germane to retail edges. The work is structured around and supportive of an attitude that views social interaction as a vital and necessary attribute of urban life and therefore of retail systems design and development in cities. The edges along three major Boston retail streets, Quincy Market--North and South Market Streets, Washington Street, and Boylston Street, are studied and documented. Pattern descriptions are developed which provide a language upon which to build future urban retail edge interventions that work not only on a return-on-investment level but also towards stimulating public life. A first step towards the use of the language is illustrated via a set of design guidelines for the redevelopment of the south Boylston street edge along the Prudential Center. / by Brian Charles O'Neill. / M.Arch.