The document discusses different types of plans used in town planning including structure plans, detailed development plans, comprehensive plans, subject plans, and master plans. It provides details on the purpose and components of each type of plan. Structure plans establish broad aims and policies, detailed development plans include zoning and development control standards, and comprehensive plans encompass all geographical and functional elements of physical development. Subject plans address specific issues and master plans envision the entire development of a town as a single unit over the long term.