Peri-urban areas lie at the periphery of cities. They are the interface between rural and urban environments and are often the subject of high pressure from the urban core which results in an un-controlled and uneven urban expansion towards the rural territory often triggering environmental degradation. While dispersed and heterogenous in terms of land-occupancy, density and services and amenities distribution, the peri-urban territory integrates mutual inter-dependences within the urban-rural continuum. These can be associated with people (inwards and outwards migration or socio-demographic change) as well as with linkages and flows between a variety of rural and urban related functions and activities (ranging from industrial and recycling manufacturing, agriculture production and food processing, sanitation, waste disposal, drinking water provisions, to housing – including slums and gated communities – transport and associated infrastructure, large-scale commercial sites, and large recreational areas such as parks or forests), which juxtapose, collide and mesh in unintended and unplanned ways.

Peri-urban areas are also the subject of weaker governance structures and limited institutional capacity, which in return limits the capacity to regulate economic activities and land-use and land coverage and makes it difficult to implement effective and integrated local, regional, and functional urban area wide policies and programs. This is particularly challenging in areas that straddle multiple jurisdictions, such as urban-rural fringe.

This topic aims to foster the integration of green and smart mobility, energy, industry and governance solutions and measures within the current peri-urban development and planning practice to reduce these areas GHG emissions and to improve their liveability.