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Quantitative Assessment
Phase 3: Quantitative Assessment
Panoramic view of a river running through a valley. Sustainable development - Inter-American Development Bank - IDB
Risk Assessment Methodology Phase 1: Screening and Classification Phase 2: Qualitative Assessment Risk Management Plan

This applies to all specific features of an operation that require a quantitative assessment according to the results of step 4.

This step is a quantitative risk assessment expressed in terms of estimated economic losses and losses to human life, after conducting a hazard, exposure and vulnerability assessments considering climate change and population dynamics scenarios. The assessment can also determine if, because of the project implementation, the local risk conditions could be exacerbated. Also, an assessment of alternatives can also be performed including cost and benefits of the proposed interventions in different scenarios or via sensibility evaluation approaches.


Task 1Task 2Task 3Task 4
Identify an approach to quantitative risk assessmentBuild a risk model and conduct a baseline risk assessment with future scenariosConduct a Risk Assessment evaluating project design alternatives, risk reduction measures, and final designBuild a Disaster and Climate Change Risk Management Plan 


Quantitative methods, enable values to be assigned to the risk components—probability and consequences— to estimate the existing risk and evaluate the impact on the risk of mitigation measures.

Read the Step 5 section of the Methodology


Introducing Disaster and Climate Change Risk into Economic Viability Analyses

Build up the vulnerability module

Disaster and Climate Change Risk Methodology Study Cases
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