Urban Resilience Assessment

Because resilience can mean bouncing back to the prior state, adapting to a new one, or transforming entirely, and it can be assessed for infrastructure, ecosystems, economies, or specific social groups. Meerow, Newell and Stults found dozens of conflicting definitions in the literature. The choices — resilience of what system, to which disturbances, for whom, and over what time frame — are normative, not technical, so an assessment that skips them produces a number with no clear meaning.

A resilience index is a composite of indicators that proxy a city's latent capacity to cope, computed before any specific shock and used for benchmarking. A performance-recovery measure is dynamic: it tracks how far a system's functioning falls during an actual or simulated disturbance and how quickly it recovers, summarising resilience as the area under the recovery curve. The index estimates potential; the recovery measure observes realised resilience against a defined event.

They are useful for communication and diagnosis but should be read cautiously. Because resilience is latent and contested, rankings depend heavily on which indicators are chosen, how they are normalised, and how dimensions are weighted, and small methodological changes can reorder cities. Robust assessments report sensitivity analyses, keep dimensions disaggregated, and validate scores against observed outcomes rather than presenting a single rank as objective truth.