Integrated Urban River Corridors

The issue of urban resilience concerns a multitude of urban systems and spaces. This thesis focuses on Urban River Corridors (URCs)—that is, urban spaces where the overlap between the urban systems (carrying the ’social-‘) and the river system (carrying the ‘-ecological’) is at the highest intensit...

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Main Author: Claudiu Forgaci
Format: Article
Language:English
Published: Delft University of Technology 2018-12-01
Series:A+BE: Architecture and the Built Environment
Online Access:https://aplusbe.eu/index.php/p/article/view/336
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author Claudiu Forgaci
author_facet Claudiu Forgaci
author_sort Claudiu Forgaci
collection DOAJ
description The issue of urban resilience concerns a multitude of urban systems and spaces. This thesis focuses on Urban River Corridors (URCs)—that is, urban spaces where the overlap between the urban systems (carrying the ’social-‘) and the river system (carrying the ‘-ecological’) is at the highest intensity—as strategic spaces with a potentially high contribution to urban resilience. The general hypothesis is that with an integrated spatial understanding, planning and design of rivers and the urban fabric surrounding them, cities could become more resilient not just to flood-related disturbances, but to general chronic stresses as well. Hence, the thesis addresses four spatial problems arising from the loss of synergy between the natural dynamics of rivers and the spatial configuration and composition of urban areas that they cross: (1) river-taming operations combined with riverside traffic corridors have weakened the relationship between fluvial geomorphology and urban morphology, transforming rivers into physical barriers; (2) flood-protection measures aiming for resistance to water dynamics have led to a latent flood risk; (3) the capacity of urban rivers to deliver ecosystem services has been diminished; and (4) rationalisations of the river system have reduced the scalar, (and implicitly) social and ecological complexity of urban rivers. Drawing on theories of social-ecological resilience and urban form resilience, on conceptual and analytical tools from spatial morphology and landscape ecology, and on practical experience in urban river design projects, the thesis constructs a theory of social-ecologically integrated Urban River Corridors, in which it proposes a spatial-morphological definition, an assessment framework, and a set of design principles and design instruments. Framed as a transdisciplinary design study, the thesis integrates knowledge from various disciplines dealing with the problematique of urban rivers and employs a design-driven methodology that includes design explorations and design testing in the research process. The case of Bucharest crossed by URC Dâmbovița and URC Colentina is used to contextualise the spatial-morphological definition, and to demonstrate, develop and test the proposed assessment framework, design principles, and design instruments with a distinct set of methods in each of the three parts of the thesis. In addition to a transdisciplinary literature review of URCs, and a historical review of Bucharest’s URCs, Part 1 presents a qualitative data analysis of 22 expert interviews, used to determine the current state of URC Dâmbovița and URC Colentina. Based on four key properties of URCs identified in the literature, Part 2 develops an indicator system and a method for the assessment of social-ecological integration. Informed by key problems and potentials identified by the local experts, the assessment framework is then applied on the two URCs of Bucharest. In the last part, design applications, including urban river projects carried out by the author on other rivers and a design workshop in Bucharest, are used to demonstrate and test the design principles through design instruments.
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spelling doaj-art-9efd79af1a50417ab51e9202cbba72392025-08-26T11:31:57ZengDelft University of TechnologyA+BE: Architecture and the Built Environment2212-32022214-72332018-12-01831Integrated Urban River CorridorsClaudiu Forgaci0https://orcid.org/0000-0003-3218-5102Delft University of Technology The issue of urban resilience concerns a multitude of urban systems and spaces. This thesis focuses on Urban River Corridors (URCs)—that is, urban spaces where the overlap between the urban systems (carrying the ’social-‘) and the river system (carrying the ‘-ecological’) is at the highest intensity—as strategic spaces with a potentially high contribution to urban resilience. The general hypothesis is that with an integrated spatial understanding, planning and design of rivers and the urban fabric surrounding them, cities could become more resilient not just to flood-related disturbances, but to general chronic stresses as well. Hence, the thesis addresses four spatial problems arising from the loss of synergy between the natural dynamics of rivers and the spatial configuration and composition of urban areas that they cross: (1) river-taming operations combined with riverside traffic corridors have weakened the relationship between fluvial geomorphology and urban morphology, transforming rivers into physical barriers; (2) flood-protection measures aiming for resistance to water dynamics have led to a latent flood risk; (3) the capacity of urban rivers to deliver ecosystem services has been diminished; and (4) rationalisations of the river system have reduced the scalar, (and implicitly) social and ecological complexity of urban rivers. Drawing on theories of social-ecological resilience and urban form resilience, on conceptual and analytical tools from spatial morphology and landscape ecology, and on practical experience in urban river design projects, the thesis constructs a theory of social-ecologically integrated Urban River Corridors, in which it proposes a spatial-morphological definition, an assessment framework, and a set of design principles and design instruments. Framed as a transdisciplinary design study, the thesis integrates knowledge from various disciplines dealing with the problematique of urban rivers and employs a design-driven methodology that includes design explorations and design testing in the research process. The case of Bucharest crossed by URC Dâmbovița and URC Colentina is used to contextualise the spatial-morphological definition, and to demonstrate, develop and test the proposed assessment framework, design principles, and design instruments with a distinct set of methods in each of the three parts of the thesis. In addition to a transdisciplinary literature review of URCs, and a historical review of Bucharest’s URCs, Part 1 presents a qualitative data analysis of 22 expert interviews, used to determine the current state of URC Dâmbovița and URC Colentina. Based on four key properties of URCs identified in the literature, Part 2 develops an indicator system and a method for the assessment of social-ecological integration. Informed by key problems and potentials identified by the local experts, the assessment framework is then applied on the two URCs of Bucharest. In the last part, design applications, including urban river projects carried out by the author on other rivers and a design workshop in Bucharest, are used to demonstrate and test the design principles through design instruments. https://aplusbe.eu/index.php/p/article/view/336
spellingShingle Claudiu Forgaci
Integrated Urban River Corridors
A+BE: Architecture and the Built Environment
title Integrated Urban River Corridors
title_full Integrated Urban River Corridors
title_fullStr Integrated Urban River Corridors
title_full_unstemmed Integrated Urban River Corridors
title_short Integrated Urban River Corridors
title_sort integrated urban river corridors
url https://aplusbe.eu/index.php/p/article/view/336
work_keys_str_mv AT claudiuforgaci integratedurbanrivercorridors