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Olaf Mumm is a senior researcher at the Institute for Sustainable Urbanism at TU Braunschweig. He is an architect and urban planner.
Deep Learning (DL) based identification and detection of elements in urban spaces through Earth Observation (EO) datasets have been widely researched and discussed. Such studies have developed state-of-the-art methods to map urban features like building footprint or roads in detail. This study delves deeper into combining multiple such studies to identify fine-grained urban features which define streetscapes. Specifically, the research focuses on employing object detection and semantic segmentation models and other computer vision methods to identify ten streetscape features such as movement corridors, roadways, sidewalks, bike paths, on-street parking, vehicles, trees, vegetation, road markings, and buildings. The training data for identifying and classifying all the elements except road markings are collected from open sources and finetuned to fit the study’s context. The training dataset is manually created and employed to delineate road markings. Apart from the model-specific evaluation on the test-set of the data, the study creates its own test dataset from the study area to analyze these models’ performance. The outputs from these models are further integrated to develop a geospatial dataset, which is additionally utilized to generate 3D views and street cross-sections for the city. The trained models and data sources are discussed in the research and are made available for urban researchers to exploit.
Deepank Verma; Olaf Mumm; Vanessa Miriam Carlow. Identifying Streetscape Features Using VHR Imagery and Deep Learning Applications. Remote Sensing 2021, 13, 3363 .
AMA StyleDeepank Verma, Olaf Mumm, Vanessa Miriam Carlow. Identifying Streetscape Features Using VHR Imagery and Deep Learning Applications. Remote Sensing. 2021; 13 (17):3363.
Chicago/Turabian StyleDeepank Verma; Olaf Mumm; Vanessa Miriam Carlow. 2021. "Identifying Streetscape Features Using VHR Imagery and Deep Learning Applications." Remote Sensing 13, no. 17: 3363.
The METAPOLIS as the polycentric network of urban–rural settlement is undergoing constant transformation and urbanization processes. In particular, the associated imbalance of the shrinkage and growth of different settlement types in relative geographical proximity causes negative effects, such as urban sprawl and the divergence of urban–rural lifestyles with their related resource, land and energy consumption. Implicitly related to these developments, national and global sustainable development goals for the building sector lead to the question of how a region can be assessed without detailed research and surveys to identify critical areas with high potential for sustainable development. In this study, the TOPOI method is used. It classifies settlement units and their interconnections along the urban–rural gradient, in order to quantify and assess the land-uptake and global warming potential driven by residential developments. Applying standard planning parameters in combination with key data from a comprehensive life cycle assessment of the residential building stock, a detailed understanding of different settlement types and their associated resource and energy consumption is achieved.
Ann-Kristin Mühlbach; Olaf Mumm; Ryan Zeringue; Oskars Redbergs; Elisabeth Endres; Vanessa Carlow. TOPOI RESOURCES: Quantification and Assessment of Global Warming Potential and Land-Uptake of Residential Buildings in Settlement Types along the Urban–Rural Gradient—Opportunities for Sustainable Development. Sustainability 2021, 13, 4099 .
AMA StyleAnn-Kristin Mühlbach, Olaf Mumm, Ryan Zeringue, Oskars Redbergs, Elisabeth Endres, Vanessa Carlow. TOPOI RESOURCES: Quantification and Assessment of Global Warming Potential and Land-Uptake of Residential Buildings in Settlement Types along the Urban–Rural Gradient—Opportunities for Sustainable Development. Sustainability. 2021; 13 (8):4099.
Chicago/Turabian StyleAnn-Kristin Mühlbach; Olaf Mumm; Ryan Zeringue; Oskars Redbergs; Elisabeth Endres; Vanessa Carlow. 2021. "TOPOI RESOURCES: Quantification and Assessment of Global Warming Potential and Land-Uptake of Residential Buildings in Settlement Types along the Urban–Rural Gradient—Opportunities for Sustainable Development." Sustainability 13, no. 8: 4099.
Das Berufsbild der Architektin und des Architekten wandelt sich: dem Allgemeinwohl und den Zielen der Nachhaltigkeit verpflichtend, kooperativ arbeitend, transformativ wirkend und fachübergreifend denkend. Um Studierende auf die Herausforderungen einer nachhaltigen Stadtentwicklung vorzubereiten, hat das Institute for Sustainable Urbanism (ISU) das praxisnahe und kooperative Lehr-Lern-Format „Projektakademie Ländlicher Raum“ ins Leben gerufen. Studierende der Architektur und des Sustainable Designs kommen in einem Entwurfsstudio mit real existierenden Fragestellungen, Akteurinnen und Akteuren in niedersächsischen Dörfern und Kleinstädten in Berührung. Ziel ist es, Potenziale des ländlichen Raums zu analysieren und Ideen für die Zukunft jedes Ortes im Kontext seiner Region zu entwickeln. Die Projektakademie fördert ein erweitertes Verständnis für Stadtentwicklung sowie wichtige Kompetenzen wie inter- und transdisziplinäre Teamarbeit, Partizipation und Gemeinwohlorientierung.
Vanessa Miriam Carlow; Verena Schmidt; Dirk Neumann; Olaf Mumm. Projektakademie Ländlicher Raum. Handbuch Innovative Lehre 2019, 339 -355.
AMA StyleVanessa Miriam Carlow, Verena Schmidt, Dirk Neumann, Olaf Mumm. Projektakademie Ländlicher Raum. Handbuch Innovative Lehre. 2019; ():339-355.
Chicago/Turabian StyleVanessa Miriam Carlow; Verena Schmidt; Dirk Neumann; Olaf Mumm. 2019. "Projektakademie Ländlicher Raum." Handbuch Innovative Lehre , no. : 339-355.
Nicolas Tempelmeier; Yannick Rietz; Iryna Lishchuk; Tina Kruegel; Olaf Mumm; Vanessa Miriam Carlow; Stefan Dietze; Elena Demidova. Data4UrbanMobility: Towards Holistic Data Analytics for Mobility Applications in Urban Regions. Companion Proceedings of The 2019 World Wide Web Conference 2019, 137 -145.
AMA StyleNicolas Tempelmeier, Yannick Rietz, Iryna Lishchuk, Tina Kruegel, Olaf Mumm, Vanessa Miriam Carlow, Stefan Dietze, Elena Demidova. Data4UrbanMobility: Towards Holistic Data Analytics for Mobility Applications in Urban Regions. Companion Proceedings of The 2019 World Wide Web Conference. 2019; ():137-145.
Chicago/Turabian StyleNicolas Tempelmeier; Yannick Rietz; Iryna Lishchuk; Tina Kruegel; Olaf Mumm; Vanessa Miriam Carlow; Stefan Dietze; Elena Demidova. 2019. "Data4UrbanMobility: Towards Holistic Data Analytics for Mobility Applications in Urban Regions." Companion Proceedings of The 2019 World Wide Web Conference , no. : 137-145.
Impervious surface is an important factor for the ecological performance of the built environment, in particular for the water balance. Therefore, the rainwater drainage infrastructure of new housing developments is planned according to the expected amount of impervious surface and the resulting surface runoff. Drainage infrastructure could be overwhelmed, however, due to small, dispersed, and often overlooked increases in impervious surface cover, a process we refer to as “hidden urbanization.” There is some evidence that impervious surface cover in housing areas has increased significantly over decades, but is there also a gap between planning and implementation? In order to find out, we compared eight development plans (i.e., the legally binding documents that steer building in Germany) of low-density (single-family) housing with the actual status-quo extracted from 2016 orthophotos. All sites are located in Lower Saxony, Germany; four are close to major urban centers and four are in small municipalities. We then modeled the local water balance for the plans and status-quo and compared results. All sites but one showed a relative increase between 8 and 56% of impervious surface, comparing plans with status-quo. For all sites with an increase of impervious cover, infiltration rates decreased by 4–19%, evaporation rates increased by 0.2–1% and surface runoff increased by 4–18%. In general, the more impervious surface, the stronger the effect. Our results point to a gap between planning and implementation and they underline the environmental consequences, illustrated by effects on the water balance. In order to prevent “hidden urbanization,” we suggest that more emphasis should be put on integrated design of housing areas and monitoring of impervious surface cover.
Michael W. Strohbach; Anneke O. Döring; Malte Möck; Maycon Sedrez; Olaf Mumm; Anne-Kathrin Schneider; Stephan Weber; Boris Schroder. The “Hidden Urbanization”: Trends of Impervious Surface in Low-Density Housing Developments and Resulting Impacts on the Water Balance. Frontiers in Environmental Science 2019, 7, 1 .
AMA StyleMichael W. Strohbach, Anneke O. Döring, Malte Möck, Maycon Sedrez, Olaf Mumm, Anne-Kathrin Schneider, Stephan Weber, Boris Schroder. The “Hidden Urbanization”: Trends of Impervious Surface in Low-Density Housing Developments and Resulting Impacts on the Water Balance. Frontiers in Environmental Science. 2019; 7 ():1.
Chicago/Turabian StyleMichael W. Strohbach; Anneke O. Döring; Malte Möck; Maycon Sedrez; Olaf Mumm; Anne-Kathrin Schneider; Stephan Weber; Boris Schroder. 2019. "The “Hidden Urbanization”: Trends of Impervious Surface in Low-Density Housing Developments and Resulting Impacts on the Water Balance." Frontiers in Environmental Science 7, no. : 1.