The Metropolitan Planning Project of Greater Boston (Massachusetts) was established in 1974 to promote voluntary collaboration between urban and suburban elementary and secondary school systems for the elimination of racial and ethnic student isolation. This report examines programs that have emerged under the plan, describes the demographic and educational context of the programs, investigates program impact, reports results of collaborative efforts, and explores directions for future collaborative activities. The Project focused on basic skills improvement, curriculum development for future careers, multicultural experiences, racial integration, community participation in governance, and the elimination of racial/ethnic isolation. Recommendations for the 1974 plan were divided into three parts: Metropathways was designed for secondary school students and emphasized innovative alternative programs; Metropairways was conceived for elementary schools as a pairing or triad of schools to develop around a special curricular emphasis in the communicative arts or in science; Metro Ethnic Heritage Centers were developed to provide the total community with those resources necessary for understanding cultural pluralism. The largest integration gains were found in programs that directly focused on racial issues, and were well-staffed, well-designed, and well-administered. A consultation process with Boston educators resulted in a modified plan for the 1980s, which would incorporate increased student participation and programs with more lasting effects. The report includes a proposal for a model school system designed to provide quality and cost-effective services to urban and suburban students in the Greater Boston area. (Author/MJL)