RPAA meaning in Regional ?

The Regional Planning Association of America ("RPAA"), formed by Clarence Stein was an urban reform association developed in 1923. The association was a diverse group of people all with their own talents and skills. The goal of this group was to “connect a diverse group of friends in a critical examination of the city, in the collaborative development and dissemination of ideas, in political action and in city building projects”. Throughout the ten-year span in which the association lasted, five leading members contributed to this goal. Clarence Stein, Benton MacKaye, Lewis Mumford, Charles Harris Whitaker, Alexander Bing, and Henry Wright were the essential backbone of the RPAA. Originally an idea of Clarence Stein’s, through a series of introductions and acquaintances in Washington DC in 1918, the Regional Planning Association began to form.