Samenvatting

This thesis focuses on optimising the emptying process of water storage facilities in urban areas, and was conducted during my graduate internship at Waterfeit Adviseurs. The study is based on the need to improve the efficiency of the system, as current systems frequently lead to floods and ineffective water management, which has a direct impact on the quality of life, safety and health of urban areas. The aim of the study was to identify inefficiencies in the current emptying process and to develop a decision tree as a guide for municipalities in the Netherlands. The approach involved a combination of literature review, interviews with municipal water managers and experts, and sizing of water storage facilities. The methodology of the study was structured by a detailed plan of approach.

The theoretical research included a comprehensive review of existing literature, reports and case studies in the field of urban water management and the process of emptying water storage facilities.
This research resulted in a deeper understanding of the technical and operational aspects of water storage and the different methods currently used. Important insights were gained through interviews with municipal water authorities and other relevant stakeholders. These interviews highlighted the different perspectives and levels of knowledge within the municipalities, as well as the need for better communication and cooperation between water boards and municipalities. The collected data and experiences were analysed and integrated into the decision tree development process.
An essential part of the study was the accurate sizing of the water storage facilities. This included factors such as soil surveys and groundwater levels to ensure an optimal design. This resulted in recommendations for improved design practices, taking into account local hydrological conditions and extreme weather conditions.
Based on these results, several conclusions could be drawn that the emptying process of water reservoirs is not working optimally. The main conclusions are the following
1. The study shows that there is a clear need for increased awareness and knowledge of water storage within municipalities and organisations.
2. Improved communication and cooperation between water boards, municipalities and implementers is essential for effective water management.
3. Accurate sizing, clear objectives and the use of innovative technologies are critical to optimising water storage facilities.
4. Maintenance of water storage facilities is often inadequate and needs more attention.

The conclusions of this study lead to concrete recommendations for improving urban water management, with the aim of optimising the emptying process of water storage facilities. These recommendations are summarised in a practical decision tree to guide municipalities in optimising their water management strategies.
For the decision tree, see the appeal product.