The urbanization of the last 150 years has been mainly characterized by a model of linear economy and growth, based on the use-consumption-waste principle. This model has shown numerous criticalities and can be considered mainly unsustainable, because it is based on a total indifference towards the environment and towards the natural limits of the ecosystem, leading to an excessive consumption of virgin resources, increasingly scarce. It is now known that our urbanisations are unsustainable and that there is a need for a change of approach and a new trajectory for cities. A paradigm shift is needed to move towards circular economies, using resources efficiently. In order to improve urban sustainability performance, a different, multidisciplinary and systemic approach is needed. In this regard, the Erasmus experience carried out during the first semester of this year in Amsterdam, allowed me to come into contact with multiple projects that deal with the theme of a circular urban metabolism. What the analyzed case studies (Buiksloterham, De Ceuvel and GWL-Terrein) have in common is the attention given to “waste”, studied not in its negative sense, but as a resource, thus reversing the usual perspective. The objective of this thesis is to identify creative and innovative solutions for the recycling of the heritage of underused or abandoned open spaces, defined as Drosscapes in order to improve the functionality of urban metabolisms, moving towards circular metabolisms. The Drosscapes, are part of the urban or peri-urban system and are the result of the dynamic and simultaneous processes of urban dispersion and urban shrinkage, which characterize contemporary urbanizations. They can be considered as waste of urban metabolism, due to the crisis of the life cycle of the structural components of the territory. An innovative approach consists in considering the problem of abandoned landscapes through the lens of urban metabolism, which from linear becomes circular. The action of recycling Drosscapes leads to a sustainable future, in which the economies are circular and the flows of goods and energy are organized in closed cycles, combining bottom-up and top-down approaches, with interactions between the different actors involved.
L'urbanizzazione degli ultimi 150 anni è stata principalmente caratterizzata da un modello di economia e crescita lineare, basato sul principio dell'uso-consumo-scarto. Questo modello ha mostrato numerose criticità e può essere considerato principalmente insostenibile, perché si basa su una totale indifferenza verso l'ambiente e verso i limiti naturali dell'ecosistema, portando a un consumo eccessivo di risorse vergini, sempre più scarse. Oggi sappiamo che le nostre urbanizzazioni sono insostenibili e che è indispensabile un cambio di approccio, più multidisciplinare e sistemico, e una ricerca di una nuova traiettoria per le città. È necessario un cambio di paradigma per muoversi verso economie circolari, utilizzando le risorse in modo efficiente. A questo proposito, l'esperienza Erasmus svolta durante il primo semestre di quest'anno ad Amsterdam, mi ha permesso di entrare in contatto con molteplici progetti che trattano il tema di un metabolismo urbano circolare. Ciò che accomuna i casi studio analizzati (Buiksloterham, De Ceuvel e GWL-Terrein) è l'attenzione data allo "spreco", studiato non nella sua accezione negativa, ma anche come una risorsa, invertendo così la prospettiva tradizionale. L'obiettivo di questa tesi è quello di identificare soluzioni creative e innovative per il riciclaggio del patrimonio di spazi aperti sottoutilizzati o abbandonati, definiti come "scarti", al fine di migliorare la funzionalità dei metabolismi urbani. I cosiddetti Drosscapes, fanno parte del sistema urbano o periurbano e sono il risultato dei processi dinamici e simultanei di dispersione urbana e restringimento urbano, che caratterizzano le urbanizzazioni contemporanee. Essi possono essere considerati uno spreco del metabolismo urbano, a causa della crisi del ciclo di vita delle componenti strutturali del territorio. Un approccio innovativo consiste nel considerare il problema dei paesaggi abbandonati attraverso la lente del metabolismo urbano, che dal lineare diventa circolare. L'azione di riciclare i Drosscapes porta a un futuro sostenibile, in cui le economie sono circolari e i flussi di beni ed energia sono organizzati in cicli chiusi, combinando approcci top-down e bottom-up, con interazioni tra i diversi attori coinvolti
The transition of Drosscapes ds an opportunity to improve the circularity of urban metabolism. Learning from Amsterdam
GUAZZI, CHIARA
2018/2019
Abstract
The urbanization of the last 150 years has been mainly characterized by a model of linear economy and growth, based on the use-consumption-waste principle. This model has shown numerous criticalities and can be considered mainly unsustainable, because it is based on a total indifference towards the environment and towards the natural limits of the ecosystem, leading to an excessive consumption of virgin resources, increasingly scarce. It is now known that our urbanisations are unsustainable and that there is a need for a change of approach and a new trajectory for cities. A paradigm shift is needed to move towards circular economies, using resources efficiently. In order to improve urban sustainability performance, a different, multidisciplinary and systemic approach is needed. In this regard, the Erasmus experience carried out during the first semester of this year in Amsterdam, allowed me to come into contact with multiple projects that deal with the theme of a circular urban metabolism. What the analyzed case studies (Buiksloterham, De Ceuvel and GWL-Terrein) have in common is the attention given to “waste”, studied not in its negative sense, but as a resource, thus reversing the usual perspective. The objective of this thesis is to identify creative and innovative solutions for the recycling of the heritage of underused or abandoned open spaces, defined as Drosscapes in order to improve the functionality of urban metabolisms, moving towards circular metabolisms. The Drosscapes, are part of the urban or peri-urban system and are the result of the dynamic and simultaneous processes of urban dispersion and urban shrinkage, which characterize contemporary urbanizations. They can be considered as waste of urban metabolism, due to the crisis of the life cycle of the structural components of the territory. An innovative approach consists in considering the problem of abandoned landscapes through the lens of urban metabolism, which from linear becomes circular. The action of recycling Drosscapes leads to a sustainable future, in which the economies are circular and the flows of goods and energy are organized in closed cycles, combining bottom-up and top-down approaches, with interactions between the different actors involved.File | Dimensione | Formato | |
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https://hdl.handle.net/10589/148161