Nomenclature
Although the term "regional planning" is nearly universal in English-speaking countries the areas covered and specific administrative set ups vary widely. In North America, regional planning may encompass more than one state, such as the Regional Plan Association, or a larger conurbation or network of settlements. North American regional planning is likely to cover a much larger area than the Regional Assemblies of the UK; both, however, are equally "regional" in nature.
Read more about this topic: Regional Planning