University of Twente Student Theses


Uncertainties in the derivation of the Dutch flood safety standards

Westerhof, S.G. (2019) Uncertainties in the derivation of the Dutch flood safety standards.

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Abstract:In January 2017, new flood safety standards for the Dutch primary flood defences came into effect. These new safety standards are for most flood defences based on two criteria: a maximum allowed casualty risk and a balance between flood damage and costs for reducing flood probabilities. Two accompanying flood safety standards were derived for these criteria: respectively the so-called local individual risk (LIR) standard and the social cost-benefit (SCBA) standard. The process to derive these new flood safety standards consists of a series of models, assumptions, data and simplifications. It is currently largely unknown how accurate these safety standards are, and which spatial characteristics affect the uncertainty. As the current flood defence improvement tasks and dike designs are guided by these safety standards, there is a desire to derive optimal safety standards fitting the flood risks. Therefore, this study aimed to quantify the uncertainty of the new flood safety standards and has determined the influence of uncertainty sources within the safety standard calculation process.
Item Type:Essay (Master)
Faculty:ET: Engineering Technology
Subject:56 civil engineering
Programme:Civil Engineering and Management MSc (60026)
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