For each project, the adaptation targets and KPIs can be set before the session and are to be discussed with the stakeholder during the session so that they can agree. This way the stakeholders understand the underlying assumptions and objectives and can agree, after which the final targets can be set in the interface. The way to make a first proposal for target values is elaborated below.
Storage capacity
The required storage capacity and normative runoff can be set based on the so-called Storage Discharge Frequency relations. These SDF-curves can be used to estimate the required gross storage demand in a district in view of the existing or future stormwater discharge capacity. The figure below shows an example of SDF curves.
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