This document provides an overview of rational comprehensive urban policy making. It discusses how rational comprehensive planning emerged in Britain in the 1950s as a top-down approach to prepare master plans and development policies with minimal public participation. While it spread to other European countries and former colonies, the developed world later abolished it due to criticism. The approach treated planning as a technical exercise led by experts to impose physical designs and land use plans. However, it lacked empirical research and consideration of social and economic diversity.