Regional planning deals with the efficient placement of land-use activities, infrastructure, and settlement growth across a larger area of land than an individual city or town. Regional planning is a sub-field of urban planning as it relates land use practices on a broader scale.
Regions require various land uses; protection of farmland, cities, industrial space, transportation hubs and infrastructure, military bases, and wilderness. Regional planning is the science of efficient placement of infrastructure and zoning for the sustainable growth of a region. Advocates for regional planning such as new urbanist Peter Calthorpe, promote the approach because it can address region-wide environmental, social, and economic issues which may necessarily require a regional focus.
A ‘region’ in planning terms can be administrative or at least partially functional, and is likely to include a network of settlements and character areas. In most European countries, regional and national plans are ‘spatial’ directing certain levels of development to specific cities and towns in order to support and manage the region depending on specific needs, for example supporting or resisting polycentrism.