Bangkok is one of the many coastal megacities in South East Asia vulnerable to impacts
of recurrent flooding. Apart from being the capital it is home to substantial national and
regional economic investments that contribute substantially to Thailand’s GDP (World Bank,
2010). Rapid urbanisation in the 1980s led to the formation of The Bangkok Metropolitan
Region (BMR) – one of the largest “mega-urban regions” in Southeast Asia. BMR initially had
extensive canal networks for agriculture and transportation which deteriorated to make space
for settlements and economic activities (Davivongs, Yokohari and Hara, 2012). The location of