Print Email Facebook Twitter New safety standards for coastal flood defences in the Netherlands Title New safety standards for coastal flood defences in the Netherlands Author Jonkman, S.N. Jongejan, R.B. Maaskant, B. Vrijling, J.K. Faculty Civil Engineering and Geosciences Department Hydraulic Engineering Date 2011-06-30 Abstract The Dutch government is in the process of revising its flood safety policy. The current safety standards for flood defences in the Netherlands are largely based on the outcomes of cost-benefit analyses. Loss of life has not been considered separately in the choice for current standards. This article presents the results of a research project that evaluated the potential roles of two risk metrics, individual and societal risk, to support decision-making about new flood safety standards. These risk metrics are already used in the Dutch major hazards policy for the evaluation of risks to the public. Individual risk concerns the annual probability of death of a person. Societal risk concerns the probability of an event with many fatalities. Technical aspects of the use of individual and societal risk metrics in flood risk assessments as well as policy implications are discussed. Preliminary estimates of nationwide levels of societal risk are presented. Societal risk levels appear relatively high in the South Western part of the country where densely populated dike rings are threatened by a combination of river and coastal floods. Options for the application of the individual and societal risk in the new flood safety policy are presented and discussed. Subject flood riskloss of lifesocietal risksafety standards To reference this document use: http://resolver.tudelft.nl/uuid:ba31d605-783f-4f1a-aa7b-58c0bf89d6ab Source 32nd International Conference on Coastal Engineering, ICCE 2010, June 30 – July 5 2010, Shanghai, China Part of collection Institutional Repository Document type conference paper Rights (c) 2011 The Author(s) Files PDF 278819.pdf 2.09 MB Close viewer /islandora/object/uuid:ba31d605-783f-4f1a-aa7b-58c0bf89d6ab/datastream/OBJ/view