Measuring the Unmeasurable: Comparative Assessment of Urban Vulnerability for Coastal Megacities — New York, London, Tokyo, Kolkata and Lagos
Abstract
The following paper presents an approach to measure the vulnerability of urban megacities with a comparative approach across cities in the Global North and South. The assessment of city vulnerability is key in order to inform risk management and adaptation strategies that are needed to build resilience against extreme events, natural hazards or consequences of climate change. While the New Urban Agenda (UN Habitat 2016) underscores the necessity for inclusive, sustainable and resilient urban development, the findings of the vulnerability assessment in the five selected coastal megacities that were part of the TRUC project — Kolkata, Lagos, London, New York and Tokyo — show that next to resource deficiencies and poverty, issues of governance also need to be addressed if we really aim to increase the coping capacities of urban population to deal with extreme events and natural hazards. While this is a major challenge for the selected coastal megacities in the Global South, the analysis reveals that in terms of adaptive capacities also, megacities in the Global North, such as New York and London, face major challenges and rank nearly on a similar level as Kolkata. Even though such assessments provide only a first overview, it is evident that effective risk management approaches and positive transformative change that can include long-term as well as immediate risk management concerns will not only require improvements at the local level but also significant changes in sub-national and national context conditions. This is particularly true in terms of fighting corruption and increasing the reliability and trustworthiness of local and national institutions and their regulations.
