Webinar: Urbanisation and flood risks: understanding the fabric and governance of Delta cities (9 May 2017)


Were you not able to attend the webinar?

  • Read more in the webinar report (pdf)
  • The recording of the webinar is available at Water Channel TV  


Webinar programme

The urban fabric: different urbanisation processes
The lecture focusses on the morphological research method in which different urbanisation processes are related to flood challenges. Informal/unplanned urbanisation of flood prone areas relates in different ways to soft and hard infrastructures, local economy and ecology than formal/planned urbanisation. For the cities of Baranquilla, Beira and Ho Chi Minh City different urbanisation patterns are mapped in typical sections and morphological hexagons. This method enables us to identify and discuss local problematics and interdependencies between autonomous and planned urban growth patterns.
How are they linked to infrastructures and what are the interdependencies related to flood risks?
Presentation local research and best practices
  • How do planned/formal and unplanned/informal urbanisation patterns relate to soft/natural and hard/engineered infrastructures? 
  • What are positive and negative interdependencies between planned/formal and unplanned/informal urbanisation?
Institutional capacities: understanding urban governance
The lecture focusses on institutional capacities behind formal and informal processes of urbanisation in flood prone areas. How does the physical battle for space relate to stakeholders and their financial, executive and judicial capacities? It is clear that informal processes make use of other capacities then formal ones. By relating explicitly morphological growth patterns to governance capacities, we can achieve a more precise understanding of local challenges and opportunities. Is this method useful for guiding urban management practices and the inter-urban discussions amongst various stakeholders? Can it facilitate the inter-urban learning process?

Presentation local research and best practices
  • Do you have examples of local projects or water management strategies who strive for a more inclusive and green approach?
  • Have you made use of participatory design and/or research by design in these projects?


Delta regions across the world are rich in natural resources and economic opportunities. As a result, they have historically been home to dense, growing urban communities. The process of urbanisation is often rapid and results in formal and informal urban fabric. Planned and unplanned urbanisation processes both affect delta infrastructures.  A variety of institutions and stakeholders generate these simultaneous processes.

What is the relationship between formal-informal and planned-unplanned urbanisation processes in the world’s deltas? How do they affect the urban water system and the allocation of flood risks? How does the physical battle for space relate to various stakeholders and their financial, executive and judicial capacities? The webinar will discuss some of these interdependencies in Baranquilla, Beira and Ho Chi Minh City.

Further information 

This webinar is organised under the auspices of Delta Alliance in association with the PBL Netherlands Environmental Assessment Agency. 

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