Journal
INTERNATIONAL JOURNAL OF DISASTER RISK SCIENCE
Volume 12, Issue 1, Pages 56-71Publisher
SPRINGER
DOI: 10.1007/s13753-020-00312-8
Keywords
Disaster risk reduction; Flooding; Local knowledge; Participatory approach; Sketch maps; Volunteered geographic information
Funding
- Heidelberg Academy of Sciences and Humanities (HAW)
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The study investigated local flood risk knowledge in Eberbach, Germany using participatory methods. Results showed that residents have a broader perception of risk and property ownership leads to higher risk awareness. The study also found that the type of flooding affects the choice of base maps for sketch maps, with information gathered complementing official data and improving communication and trust between local governments, researchers, and citizens.
A rise in the number of flood-affected people and areas has increased the interest in new methods and concepts that account for this change. Citizens are integrated into disaster risk reduction processes through participatory approaches and can provide valuable up-to-date local knowledge. During a field study in Eberbach (Baden-Wuerttemberg, Germany) sketch maps and questionnaires were used to capture local knowledge about flooding. Based on a previous study on urban flooding in Santiago de Chile, the tools were adapted and applied to river flooding in the city of Eberbach, which is regularly flooded by the Neckar River, a major river in southwest Germany. The empirical database of the study comprises 40 participants in the study area and 40 in a control area. Half of the participants in each group are residents and half are pedestrians. Purposive sampling was used, and the questionnaires aimed to gather demographic information and explore what factors, such as property, influence the risk perception of the study participants. The results show that residents identify a larger spatial area as at risk than pedestrians, and owning property leads to higher risk awareness. The flood type influenced the choice of the base maps for the sketch maps. For river flooding, one map with an overview of the area was sufficient, while for urban flooding a second map with more details of the area also enables the marking of small streets. The information gathered can complement authoritative data such as from flood models. This participatory approach also increases the communication and trust between local governments, researchers, and citizens.
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