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- Stadtplanung (18) (remove)
Die Arbeit beschäftigt sich mit den diskursiven Konstruktion urbaner Images in Großprojekten. Aufbauend auf einer soziologischen Definition der Begriffe „Raumbild“ und „Ortsbild“ wird am Beispiel des städtebaulichen Großprojekts Paris Rive Gauche untersucht, wie sich ortsspezifische Referenzen in einem Planungsprozess bilden, zu welchen Zwecken sie eingesetzt werden und wie mit Hilfe dieser Referenzen im Planungsprozess diskursiv ein Image für einen entstehenden Stadtteil konstruiert wird.
Großsiedlungen sind nicht nur ein Erbe der Moderne, sondern seit über drei Jahrzehnten Gegenstand der Stadterneuerung. Dieses Buch erörtert, was eine heute „normale“ Großsiedlung stadtplanerisch benötigt und welche stadtentwicklungs- als auch wohnungspolitisch gesteuerten Ressourcen in einer integrierten Planungssteuerung gebündelt werden sollten. Dabei wird das grundsätzliche Planungsinstrument des Quartiersmanagements aktualisiert – über den Gegenstand Großsiedlungen hinaus.
The main hypothesis of this research is that civil society’s participation is able to improve the planning results in the Chinese city of Qingdao in the contemporary age. Qingdao is a young city developed from a German colony in eastern China. Apart from the powers of the government and the market, the 'third power', including mainly the power of volunteer citizens and the citizens’ organisations, also positively promoted the spatial development in Qingdao’s history. Since 1978’s reform, Qingdao’s great progress in urban housing, historic preservation, public space and urban traffic results mainly from the increasing strength of both the government and the market, while the government has always been the dominant promoter for urban construction. The actual planning mechanism – the government formulates 'what to do' itself and decides 'how to do it' with the market – has much limit in reacting to the rapidly changing situation, serving diversified social interests, and raising sufficient funds for the city’s urgent demands in Qingdao. Searching for new development strategies based on the understanding of civil society in the Chinese context can provide a promising perspective on the urban studies of Qingdao. Chinese civil society can be understood as the intermediate sphere of individuals, families, citizen’s organisations, social movements, public communication, and of the non-governmental body’s non-for-profit involvement for the provision of public services between the state and the market. China has its own cultural tradition of civil society, and the modern civil society in China is showing its great potential in improving social integration and urban life. The Chinese government has started to advocate for civil society’s participation in urban construction, and encouraging the 'bottom-up' mechanism in the planning-related issues through political statements and legislative approaches since the last two decades. The existing planning practice in China is able to demonstrate that civil society’s participation helps improve the quality of Chinese urban planning realistically under present conditions, and that moderation of planning experts and the push of the authority are the key factors for successfully integrating the strength of civil society in planning. However, the power of civil society is not yet sufficiently discovered in Qingdao’s planning. For better planning results, the city of Qingdao needs more initiatives to mobilize civil society in the planning practice, as well as more support to enrich the related studies. This thesis recommends that Qingdao establishes the 'Foundation for Collaborative Urban Solutions' through the joint efforts of the authority and civil initiatives, which aims at moderating and facilitating the strength of civil society. The suggested pilot projects include: a. The Community-based Housing Workshop for regenerating the living environment of the run-down communities, where the residents are willing to collaborate with the foundation with own efforts. b. The Heritage Preservation Workshop for suggesting an efficient supervision mechanism involving civil society which protects the historic heritage from being destroyed in the urban construction. c. The Public Space Forum for improving accessibility, quantity and ecologic function in the development of Qingdao’s urban public space with the knowledge and creativity of both the government and the citizens. d. The Mass Transport Forum for a realistic strategy for funding the rail-based traffic system in Qingdao through enabling the civil society - especially the individual citizens and their households to invest. The 'Foundation of Collaborative Urban Solutions' is able to improve Qingdao’s planning to cope with the urban problems the city are facing in its contemporary development, as well as to provide valuable reference for the further research of civil society’s participation in Chinese urban planning.
Die Stadt Weimar nimmt in der deutschen Geschichte und in deren Rezeption eine besondere Stellung ein. Sie steht als Metapher für verschiedene kulturhistorische Epochen. Seit der Jahrhundertwende avancierte sie zum komprimierten Spiegelbild deutscher Befindlichkeiten. Für die Nationalsozialisten stellte Weimar eine wesentliche Station für ihren Aufstieg von München nach Berlin, einen erfolgreichen "Kampf- und Experimentierort" dar. Doch auch von 1932-1945 konnten sie in der Stadt außerordentlich aktiv werden. Beispielhaft äußerte sich das in den zeitgenössischen Bauprojekten, in der zeitgenössischen Baupolitik. Die Dissertation behandelt die gesamte Spannbreite der baulichen und planerischen Aktivitäten in und um Weimar in der Zeit des Nationalsozialismus. Sie thematisiert sowohl die repräsentativen Projekte, als auch die Baulichkeiten des Komplexes zum Konzentrationslager Weimar-Buchenwald, ebenso die Wohn- und Kulturbauten, die Kasernenarchitekturen, die Industrie-, Verkehrs- und Behelfsbauten sowie städtebauliche Planungen. Die Gebäude und Komplexe werden im kulturpolitischen Kontext betrachtet, planungs- und baugeschichtlich untersucht, umfassend architektonisch-gestalterisch und städtebaulich-gestalterisch analysiert, dokumentiert, in ihrer gegenseitigen Beeinflussung dargestellt, verglichen und gewertet. Gegebenenfalls werden Querbeziehungen zu anderen Objekten in Deutschland, außerdem zu zeitgleichen nichtbaulichen Ereignissen in Weimar bzw. Deutschland aufgezeigt. Ein Gesamtbild zur Bauplanung und zum Bauschaffen im Dritten Reich in einer Stadt, beispielhaft in der symbolbeladenen Stadt Weimar wird erstellt; ein Stück verdrängter Kulturgeschichte der Stadt Weimar wird rekonstruiert.
Abstract
This doctoral thesis defines the relationship between the urban and rural in the 21st century, and focuses on food as a key component. The fact that food is, for the most part, produced in the countryside and then transported to the city has a significant influence on this very unbalanced relationship today. The main goal was to show that it is necessary to bring agriculture, urban gardening, the breeding of domestic farm animals, and beekeeping back to the city, which would have a positive affect on both the city and the countryside. All of this is already taking place at the local level, within the neighbourhoods of our cities and through the work of self-organised activities and initiatives, which have been taken up by city residents themselves. One example of this is the community garden, a new model of gardening which offers fertile ground for growing vegetables and to test various forms of co-existence, different ways of designing spaces, the creation of alternative values, and a positive vision for the future of city residents.
In 2010, I co-created the community urban garden Beyond a Construction Site, which is the central part of this artistic research. Throughout the entire four-year process of creating this community garden, theory and artistic practice were intertwined, and informed one another. This community garden is an example of a self-organised and self-managed community space located in a residential neighbourhood in the centre of the city of Ljubljana, and as such is a typical example of urbanism from the bottom up. I placed the creation and development of our community garden in a dialogue with the formal way of arranging urban gardening in Ljubljana, a top-down approach, which the city has been carrying out intensively since 2007. I compared the solutions being proposed by the city of Ljubljana for organising urban gardening with the way it is organised in other European cities, the UK, and the USA. I also researched the recent rapid growth of self-organised initiatives which are focused on the local production of food and seek to find more economic and ecologically friendly models to visibly influence the future of cities and the countryside. Here, community gardens play an important role, as in addition to the production of food they are also spaces for the criticism of existing urban policies, a self-organised revitalisation of neglected spaces, and places of resilience, because they differ from that which real estate agencies, large financial companies, and city authorities desire them to be.
The community garden Beyond a Construction Site has become living proof that, through a group action, the residents of a neighbourhood can influence existing city policies and the future of both their own neighbourhood and that of the entire city. The initiators of this garden are artists and architects, and we began this community garden in the context of an art festival, which also shows that art can influence the processes of everyday life and help to create much needed spaces within cities to serve various purposes. Our community garden has also shown itself to be an important platform for the exchange of knowledge on organic gardening, ecology in everyday life, and critical architecture, as well as serving to connect related initiatives. Together with these other initiatives we are stronger, and are influencing structural changes within city politics, thereby also co-creating the future of Ljubljana. This community garden is helping us to redefine our relationship with the city and re-awaken the desires and actions of residents connected with realising their fundamental right, the right to the city.
My other artworks, which I am presenting in the context of this doctoral thesis, show an optimistic vision for the future of cities. The video animations Back to the City (2011) and The Right Balance (2013), as well as the accompanying collages, visualise a city of the future where urban and rural practices live together side-by-side. This vision is being realised by city residents themselves, with their active participation in the creation of community gardens, growing their own vegetables, urban beekeeping, and by having egg-laying hens in their gardens. My desire was also to present the theoretical concept and scientific research to a non-academic public, and to people without specialised training. Using the method of storytelling I included knowledge from the research into the video animations and collages. In this way my artistic work, with an intentional playfulness, challenges today’s faith in science and theoretical concepts, as well as directing attention to working with common sense, with one’s own hands, and with the earth. This can contribute to a change in the still dominant anthropocentric view of nature, which is an urgently needed change for our future.
Keywords: rural, urban agriculture, community gardens, urban beekeeping, the bottom-up approach to urban planning, alternative spaces
The objective of this thesis was to understand the 20th-century history of informal urbanisation in Europe and its origins in Madrid and Paris. The concept of informal urbanisation was employed to refer to the process of developing shacks and precarious single-family housing areas that were not planned by the public powers and were considered to be substandard because of their below-average materials and social characteristics. Our main hypothesis was that despite being a phenomenon with ancient roots, informal urbanisation emerged as a public problem and was subsequently prohibited in connection with another historical process occurred: the birth of contemporary urban planning. Therefore, its transformation into a deviant and illegal urban growth mechanism would have been a pan-European process occurring at the same pace that urban planning developed during the first decades of the 20th century.
Analysing the 20th-century history of informal urbanisation in Europe was an ambitious task that required using a large number of sources. To contend with this issue, this thesis combined two main methods: historiographical research about informal urbanisation in Europe and archival research of two case studies, Madrid and Paris, to make the account more precise by analysing primary sources of the subject.
Our research of these informal areas, which were produced mainly through poor private allotments and housing developed on land squats, revealed two key moments of explosive growth across Europe: the 1920s and 1960s. The near disappearance of informal urbanisation throughout the continent seemed to be a consequence not of the historical development of urban planning—which was commonly transgressed and bypassed—but of the exacerbation of global economic inequalities, permitting the development of a geography of privilege in Europe.
Concerning the cases of Paris and Madrid, the origins of informal urbanisation—that is, the moment the issue started to be problematised—seemed to occur in the second half of the 19th century, when a number of hygienic norms and surveillance devices began to control housing characteristics. From that moment onwards, informal urbanisation areas formed peripheral belts in both cities. This growth became the object of an illegalisation process of which we have identified three phases: (i) the unregulated development of the phenomenon during the second half of the 20th century, (ii) the institutional production of “exception regulations” to permit a controlled development of substandard housing in the peripheral fringes of both cities, and (iii) the synchronic prohibition of informal urbanisation in the 1920s and its illegal reproduction.
Die vorliegende Arbeit untersucht das Potential von Webanwendungen in 3D zur Vermittlung von Informationen im Allgemeinen und zur Darstellung von städtebaulichen Zusammenhängen im Speziellen.
Als grundlegender Faktor der visuellen und funktionalen Qualität - welche die Wahrnehmung des Nutzers direkt beeinflusst -, erfolgt die Bewertung der Machbarkeit von 3D Webinhalten unter Anwendung einer explorativen, qualitativen Evaluierung von Webagenturen.
Darauf aufbauend wird das Potential von 3D Webanwendungen aus Nutzerperspektive untersucht, um Zusammenhänge herstellen zu können: einerseits zwischen der Machbarkeit bei der Entwicklung und anderseits die Akzeptanzkriterien beim Rezipienten betreffend.
Die empirische Studie, die mit dem Forschungspartner Bosch für diese Arbeit modelliert wurde, eruiert zum einen, inwiefern 3D im Vergleich zu 2D und 2,5D, und zum anderen WebGL im Vergleich zu bisherigen 3D Webtechnologien die visuelle Wahrnehmung und kognitive Leistungsfähigkeit des Nutzers beeinflusst.
Die Erkenntnisse der Untersuchung zeigen Parallelen zu bestehenden Studien aus web-fernen Bereichen.
Um die Bedeutung von 3D Webanwendungen zur Verbesserung von Entscheidungsprozessen in Stadtplanungsprojekten ableiten zu können, werden Aspekte zur Interaktion und visuellen Wahrnehmung in den speziellen Kontext von Stadtplanungswerkzeugen gebracht. Dabei wird überprüft, ob sich web-basierte 3D Visualisierungen sinnvoll zur Vermittlung städtebaulicher Zusammenhänge einbinden lassen und inwieweit bestehende Projekte, wie in dieser Arbeit beispielhaft das vom Fraunhofer IGD entwickelte Forschungsprojekt urbanAPI, die Technologie WebGL nutzen können.
Vor diesem Hintergrund soll die Arbeit Akzeptanzkriterien und Nutzungsbarrieren von 3D Webanwendungen auf Basis der Technologie WebGL identifizieren, um einen Beitrag zur Machbarkeit von Webanwendungen und zur Entwicklung entsprechender Stadtplanungswerkzeuge zu leisten.
The present study analysis the environmental benefits of urban vegetation within the municipal boundary of a megacity through multi scale integrated modelling to estimate its benefits approximately. The advantages (and challenges) that Nature, inserted into cities, offers to the population are observed from different viewpoints. As geographical reference the profile of megacities located in low (tropical) latitudes was observed, in a case study on the city of São Paulo/ Brazil. Commonly, urban vegetation is overlooked by local people, governments and economical structures. Although sparse vegetation exists, it is hardly recognized. Along the brief history of rapid urbanization which is accompanied by massive environmental degradation, urban green becomes, in the dispute for space, a true luxury in cities like São Paulo. Not as retrogression but as advance, it demonstrates that the integration between nature and city would be desirable. The approximated quantification of the variations which occur between actual scenario and greened scenarios shows the need to rethink the urban biome as a man-dominated ecosystem. The benefits of the urban vegetation are diverse. This work details plants as agents of climatic and ecosystem balance and performance. It also approaches current issues like climate change, energy efficiency and thermal comfort, as well as the purification of natural resources, through the treatment of water, soil and air. Especially because at present no efficient technical solutions exist, that could substitute the environmental services of the vegetation. These benefits contribute to quality of life and increase socio-environmental equity especially important in high-contrast megacities. The vegetation assumes two important roles in cities. The functional dimension brings concrete and measurable benefits to the environment. From a symbolic vision, vegetation represents Nature in cities, approximating humans to their origins. Conclusively the study defends the importance of the valorization of Nature and of the united efforts for literally green cities because it proves that financial investment in urban vegetation has direct effects on the costs destined to the areas of health and infrastructure. The City of São Paulo, invested in 2008 about US$ 180 million (one hundred and eighty million dollars) in urban green (and environment) which tends to save US$ 980 million (nine hundred and eighty million dollars) of expenses annually. In other words, for each US$ 1 invested in planting and maintenance of urban green, the society saves at least US$ 5 of expenses in health, construction of French drains, energy etc.