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Item type:Publication, Access status: with files , A high-resolution framework for urban pluvial flood risk mapping(Copernicus Publications, 2026-06-11); ; ; ; This study presents a high-resolution framework for assessing climate-related risk at the building scale by implementing the IPCC risk concept, defining risk as a function of vulnerability, exposure and hazard. The framework focuses on pluvial flood risk related to people's well-being and mobility. Hazard is driven by a 100-year rainfall event (36 mm h −1 ), modelled with a hydrodynamic flood simulation incorporating topography, drainage capacity, and land use. Exposure is differentiated by impact type, considering residents on ground floors for well-being and building proximity to flooded streets for mobility and accessibility. Social vulnerability is quantified using socioeconomic indicators such as age, income, and education. The framework is demonstrated using empirical data from Hamburg, Germany, identifying risk hotspots where high social vulnerability coincides with elevated flood exposure. To support practical implementation, we introduce a Python-based ArcGIS pluvial flood risk toolbox that enables automated, building-level risk mapping. The transparent and flexible design makes the framework transferable to other cities, supporting climate adaptation planning and risk-informed decision-making.Publicationtype: Journal Article40 94 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , Hamburg Pluvial flood risk map(Copernicus Publications, 2025-05-21); ; ; ; The "Hamburg Pluvial Flood Risk Map" aims to improve our understanding of the drivers, dynamics and interactions of climate-induced risks in Hamburg. Following the risk framework of the IPCC, we calculate a risk index based on hazard, exposure and (social) vulnerability. In this sense, we combine data from the previously published Social Vulnerability Index (von Szombathely et al., 2023) with novel meter-scale hydraulic simulations of urban flooding provided by the heavy rain hazard map of the city of Hamburg (BKG/FHH 2023), developing an integrated urban pluvial flood risk assessment. We enhance the modeling of social vulnerability by applying the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) and the Shannon Entropy procedure. We propose high-resolution exposure modeling for residents affected by urban flooding, with two distinct exposure layers influencing well-being on the one hand and restricting mobility and accessibility on the other. We show that fundamentally new spatial patterns emerge for integrated pluvial flood risk in Hamburg, which differ from familiar socio-economic urban structures and at the same time differ clearly from a pure representation of the hazard. Presented through high-resolution spatial maps, this analysis aids in identifying adaptation needs and potential for sustainable transformation in urban areas and in prioritizing policy measures for climate change adaptation. References: BKG/FHH 2023. Eine Starkregen-Gefahrenkarte für Deutschland. https://www.business-geomatics.com/2023/02/02/eine-starkregen-gefahrenkarte-fuer-deutschland/ von Szombathely M., Hanf F. S., Janka B., Meier L., Ossenbrügge J., Pohl T. 2023. An Index-Based Approach to Assess Social Vulnerability for Hamburg, Germany: International journal of disaster risk science. 14, 5, p. 782-794 13 p. DOI: 10.1007/s13753-023-00517-7Publicationtype: Conference Paper148 49 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , Towards a socio-ecological system understanding of urban flood risk and barriers to climate change adaptation using causal loop diagrams(Taylor & Francis, 2025-04-04); 22 29 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , Multi-domain design structure matrix approach applied to urban system modeling(Multidisciplinary Digital Publishing Institute (MDPI), 2020-06-21); ; ; ; Modeling the urban system for urban health and well-being with the aim of finding ways to optimize the well-being of urban dwellers is a complex task. Different modeling approaches that consider specific parts of the urban system, e.g., environmental stressors, urban society, and urban morphology, need to be integrated. The conceptual model of health-related urban well-being (UrbWellth) has been constructed to provide a structure for an integrated modeling framework. However, interfaces between the different modeling approaches were not sufficiently identified until now. The challenge to specify and operationalize these interfaces is met by using the Design Structure Matrix (DSM) concept, which is widely used in design engineering. It is used here to identify necessary interfaces within the urban system by determining the relevant interface variables and processes. The conceptual model for UrbWellth is used to construct a DSM. The results of a clustering of this UrbWellth-based DSM reveal that the structure of the conceptual model is indeed suitable to serve as a basis for an integrated model. Further, a Multi-Domain DSM (MDDSM), which is an extension of the DSM based on expert knowledge from individual modelers, identified the interface variables for the integrated model components as well as the processes for which different modeling approaches need to be coordinated. Moreover, the approach based on MDDSM identified processes that are not yet covered by the available modeling approaches.Publicationtype: Journal Article475 319 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , Relation between observed and perceived traffic noise and socio-economic status in urban blocks of different characteristics(Multidisciplinary Digital Publishing Institute (MDPI), 2018-02-28); ; ; ; Living in cities offers many benefits and thus more and more people are living in urban areas. However, the concentration of human activities also creates environmental stressors with severe influence on people’s health and well-being. Noise is an environmental stressor with known health impact. Despite this, studies investigating small-scale difference in noise exposure and annoyance are lacking. Against this background, this case study investigates environmental justice empirically, focusing on the distribution of road traffic noise and its perception in Hamburg, Germany. The study outlines a methodological approach that takes into account subjective and objective measures of exposure in small-scale residential blocks. The results show that annoyance by noise is clearly related to noise emission. Moreover, different groups are affected by noise pollution in our study area unequally. In particular, younger people and people with lower socio-economic status have higher probabilities to be affected by noise. Additionally, it emerged that participants reporting higher levels of annoyance from noise are on average younger than those feeling less annoyed. Overall, these results show that the current legal noise limits applicable to residential planning processes in German cities are not sufficient to prevent substantial annoyance effects in residential populations.Publicationtype: Journal Article403 511 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , A conceptual modeling approach to health-related urban well-being(Multidisciplinary Digital Publishing Institute (MDPI), 2017-05-12); ; ; ; In cities, social well-being faces obstacles posed by globalization, demographic and climate change, new forms of social organization, and the fragmentation of lifestyles. These changes affect the vulnerability of city societies and impact their health-related urban well-being (UrbWellth). The conceptual model introduced in this paper systematizes the relevant variables while considering previous research, and establishes the target value UrbWellth. The model differs from existing approaches mainly in the analytical distinctions it suggests. These allow us to group the relevant urban influence variables into four sectors and enable a more general and abstract consideration of health-related urban relations. The introduction of vulnerability as a filter and transfer function acts as an effect modifier between UrbWellth and the various urban variables.Publicationtype: Journal Article1067 921