I am looking for some examples of per capita public open space ratios for urban settings. When writing a comprehensive plan for an urban residential (transit dependant) neighborhood, how many acres of passive and/or active green space per worker/resident is concidered acceptable? How much is too little? Should this be dependant on teh mix of workers/residents in the neighborhood? Do such norms for large metropolitan centers exist? What kind of open space ratio can be used as a standard when writing an EIS? Any suggestions would be useful.