The production of flood vulnerability in Accra, Ghana: Re-thinking flooding and informal urbanisation

摘要

To date, understandings of flood vulnerability in African cities have been conceptually and practically limited. A dominant focus on the geophysical and biophysical causes of flood events restricts the analyses to the source of flood events and does not pay critical attention to the internal actors, dynamics and processes of informal urbanisation where the burden of flood impacts usually fall. This paper challenges these analyses by approaching the problem of flood vulnerability through an understanding of informal urbanisation. The study is based on experiences from selected informal communities in Accra, Ghana. Drawing on mixed qualitative methods including community focus group discussions, hazard victims' interviews and institutional consultations/surveys, the study reveals that flood vulnerability in informal settlements has co-evolved with the dynamics of informal urbanisation and dwelling processes. The paper therefore makes a case for a re-look at the epistemology and ontology of urban flooding in rapidly and informally urbanising areas in the Global South.