Prior to the 1960s, many areas of Boston and Cambridge were mixed residential and industrial. East Cambridge and North Cambridge were that way. I think this area of Boston could eventually become a mixed use area where there is a land use pattern of one or two blocks of residential/commercial interspersed with one or two blocks of industrial. It would be necessary to manage truck traffic and noise levels. Industry now is mostly "clean", so there shouldn't be significant pollutants to address. I think a really exciting city should have these areas of mixed use, properly managed. As a kid I remember how vibrant East Cambridge was with its residential areas having some small industrial uses mixed in, and the larger industrial area a couple of blocks to the south. It can be an effective urban model now with industry much cleaner than it was 70 years ago, and tighter zoning and traffic management in place.