This document discusses the benefits and challenges of urbanization. The benefits include more job opportunities compared to rural areas, reduced pollution through compact development, and improved living conditions with access to public transportation and city services. However, urbanization also presents challenges like stress on city services, transportation problems, increased pollution, and poverty. It then outlines approaches for community-based development projects that focus on improving unemployment, the environment, and living conditions through neighborhood committees and community facilities. The Bronx Center Project is highlighted as an example that used multi-disciplinary problem solving and community-based planning to rehabilitate existing institutions, add low-rise housing, and improve transportation and health services facilities.