(i) A planning region is a self-created living organism, having a lifetime which not only supports the life in the region but also radiates unifying forces that enable the region to be a unified regional space so as to facilitate the practice of regional planning. (ii) Characteristics of a planning region are : 1. A planning region should be neither too big nor too small. 2. The boundary should be flexible. 3. There should be natural cohesion. 4. It should have economic harmony