Case Study: Katwijk aan Zee

Performance analysis of a multifunctional flood defense

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Katwijk is a small coastal
town located at the old mouth of the River Rhine and along the North Sea. The
national flood safety inspection of the coastal area demonstrated the need for
the construction of a new sea dike to protect some 4000 people living in the city
centre. The dune-covered coastline near the town is a tourist area that lacks
sufficient car parking. To make best use of space and funds, the municipality
and coastal authorities decided to combine functions and use the dune-area for
both flood protection and parking. As this was a first-time project, it was yet
unknown how interdepencies of functions would affect the performance of this
multifunctional flood defense. In this research project we customized an
existing performance analysis method to look into this issue.