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- W2953954547 abstract "The Dutch flood risk policy has changed in recent years. Traditionally the focus of the Dutch watermanagement is on preventative measures in the form of dikes and dams. In order to protect theNetherlands a large network of dikes has been constructed. Due to climate change the flood risk in theNetherlands will increase. More extreme weather is predicted with longer and more dry and wetperiods. This will increase the risk of flooding. Since only measures aimed at flood prevention are notsufficient, is in 2009 the multilevel flood safety concept introduced in the Netherlands. This conceptfor the management of the flood risk is based on three strategies: prevention, spatial planning andcrisis management. By applying different strategies, such as flood risk prevention, flood risk mitigation,flood preparation and flood recovery, urban areas become more resilient to flooding.Due to climate change many dikes in the Netherland need to be reinforced, since they do not meetthe safety requirements. Since the reinforcement of dikes is expensive and sometimes difficult toimplement often alternative measures are researched. Alternative measures that are often researchedas an alternative for dike reinforcement are systemic measures. Systemic measures are flood riskmitigating measures that are aimed at reducing the likelihood and magnitude of floods and cancomplement flood defences. While decision-makers and policy makers often consider systemicmeasures, they eventually tend to decide in favour of dike reinforcement. The aim of this research isto provide insights into the steps that lead to decisions about systemic measures in regional-high waterprojects by analysing and comparing for two projects how facts are formed and how authorities,stakeholders and uncertainties play a role in the formation of these facts.For this research a case study is performed at regional water authority Drents Overijsselse Delta. Twoprojects are analysed: the Stadsdijken Zwolle project and the POV (Project Transcendent Exploration)System Development High Water Perspective Overijsselse Vecht (POV Vecht). In the Stadsdijken Zwolleproject at the beginning only alternatives for dike reinforcement were researched. After it becameapparent that the number of dikes that did not meet the safety requirements increased considerablydue to new norms (2017), it was decided to investigate systemic measures as a possible solution. Inthe POV Vecht project the regional water authorities Vechtstromen and Drents Overijsselse Delta worktogether with the Province of Overijssel to research the effectivity of systemic measures in the basinof the Overijsselse Vecht. For both projects the generated solutions and alternatives were analysed. Itis researched for what reasons solutions and alternatives were rejected or not analysed in more detailand how uncertainties played a role in the decision-making process. Besides this, it is examined whichinteractions took place with the responsible authorities and stakeholders during the decision-makingprocess.Based on literature, three assumptions are made about the decision-making process that takes place:Firstly, decision-making processes are made up of small considerations and decisions. It seems thatthe decision for the most favourable solution is taken at the end of a decision-making process, butdecisions are made in all steps of a decision-making process. Secondly, knowledge that is used fordecision making is spread over various actors in a network. This knowledge can be conceptualised inthree tracks: the track of image formation, the track of will formation and the track of fact formation.These three tracks contain respectively the images, perceptions and interpretations of actors; theambitions, sources and means of power of actors; and all facts and research. Thirdly, uncertainties areinherent to water management and decision making. Policy makers often view uncertainties as acomplicating factor and are unwilling to accept and embrace uncertainties in decision-makingprocesses.The results show that in both projects a similar method was used for the formation of facts. First, allsolutions were generated at the beginning of the project. During both projects no new solutions weregenerated. Second, for some solutions alternatives were generated, which are options of how a7solution could be realised. Then the promising alternatives were analysed quantitively. Both projectsused extern engineering firms to analyse and model the effects of the alternatives. Based on thesemodelling outcomes, decisions were made to analyse solutions or alternatives in more detail or tochoose the most favourable solution(s) or alternative(s). Authorities are mainly involved during thefinal decision for the most favourable solution. During the formation of facts, authorities are keptinformed about the main results of the project. In both projects representatives of responsibleauthorities were only involved after the alternatives were analysed. Indirect, responsible authoritieswere involved in the project earlier, for example trough experts, policy advisors or civil servants whowere involved earlier in the decision-making process. Stakeholders were mainly involved in order toget input on alternatives and to research the public support for certain systemic measures. In bothprojects stakeholders were not involved in the generation of solutions. One of the interesting findingsof this research is that the responsible authorities and stakeholders can influence the formation offacts, without an actual interaction. Since, some of the interim decisions that are taken during thedecision-making process are based on expectations of certain stakeholders or groups. With respect tothe uncertainties, it was found that the uncertainties are not explicitly used as an argument forrejecting the solutions or alternatives or used as a substantiation for making certain decisions.However, implicitly uncertainties seem to play an important role in the interim decisions that weremade. In both projects there seems to be a preference for systemic measures that can be realisedwithin the district of WDODelta, on a small scale and have relatively low costs." @default.
- W2953954547 created "2019-07-12" @default.
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- W2953954547 date "2019-01-01" @default.
- W2953954547 modified "2023-09-23" @default.
- W2953954547 title "Towards facts in regional high-water projects : a comparative case study of the influence of authorities, stakeholders and uncertainties" @default.
- W2953954547 hasPublicationYear "2019" @default.
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