Search results for " sprawl."
showing 10 items of 51 documents
Clustering cities through urban metrics analysis
2017
[EN] This paper describes a process for measuring and characterizing urban morphological zones. These urban zones are delineated for the entire area of Spain, independently of administrative boundaries and excluding demographic data, using a high resolution land-use dataset. Given the rich information available on land cover and subsequently assigned population data, it is possible to calculate a set of urban spatial metrics to classify these urban zones into homogenous morphological groups. Four types of urban agglomerations are identified in Spain by working with these urban metrics and applying a final cluster analysis. Although these groups have a general complex monocentric typology, e…
¿Metrópolis dispersas?
2010
La cuestión de la dispersión urbana constituye hoy un tema de investigación alrededor del cual se ha ido concentrando el interés disciplinar y político-institucional. Tal interés encuentra su respuesta en datos estadísticos (EEA, 2006) que confirman que: el 75% de la población europea vive en áreas urbanas; más de un cuarto del territorio europeo resulta urbanizado, y según las estimaciones en 2020 aproximadamente cerca del 80% de los europeos vivirá en áreas urbanas. Es un campo de la investigación todavía abierto y sobre el cual este trabajo de tesis ha querido reflexionar, siendo consciente que en urbanismo el conocimiento es una acción cognitiva y, al mismo tiempo, proyectual. Por lo ta…
The impractical supremacy of the local identity on the worthless soils of Mappano
2016
Introduction Soil is under pressure worldwide. In Italy, in the last two decades, land consumption has reached an average rate of 8 m2, demonstrating the failure of urban planning in controlling these phenomena. Despite the renewed recognition of the central role of soil resources, which has triggered numerous initiatives and actions, soil resources are still seen as a second-tier priority. No governance body exists to coordinate initiatives to ensure that soils are appropriately represented in decision-making processes. Global Soil Partnership draws our attention to the need for coordination to avoid fragmentation of efforts and wastage of resources. Both at a global and at a local level, …
How green neighbourhoods make cities more compact?t? A 2D microeconomic perspective
2014
National audience; We analyse the emergence of scattered residential development, a key characteristic of sprawl. We analyse a 2D urban economic model with neighbourhood interactions among households (social contacts) and with farmers (who produce green amenities). Starting from a cross-shaped road network and CBD, we analytically establish the existence and characteristics of residential leapfrogging that breaks up the compact development of the city. We extend our analysis by numerical experiments based on observed or econometrically estimated parameters. We nd that the shape of built up areas in uences the decision or not to jump over undeveoped land or to stick to the contiguous urban f…
Fractal dimension versus density of built-up surfaces in the periphery of Brussels
2007
International audience; This paper aims at showing the usefulness of the fractal dimension for characterizing the spatial structure of the built-up surfaces within the periurban fringe. We first discuss our methodology and expectations in terms of operationality of the fractal dimension theoretically and geometrically. An empirical analysis is then performed on the southern periphery of Brussels (Brabant Wallon). The empirical analysis is divided into two parts: first, the effect of the size and shape of the windows on the fractal measures is empirically evaluated; this leads to a methodological discussion about the importance of the scale of analysis as well as the real sense of fractality…
Managing Metro Manila
2017
Metro Manila residents are confronted everyday with the challenges of flooding, substandard housing and horrendous traffic. In this low altitude plain, any significant rainfall raises water levels in many small streams, and contributes to traffic jams. The rapid population growth of the metropolis has led to the proliferation of squatter areas, including alongside flood-prone rivers and railroad tracks. The lack of discipline and of decent garbage management contribute in turn to a worsening of floods when streams are covered with litter. The fast rise in motorization rates, coupled with the many imperfections of the public transport system, make Manila one of the most congested cities in t…
A NEW DIALETICS CENTRE/PERIPHERY: CONSUMPTION PATTERNS AND PRACTICES IN THE SUBURBAN AREAS
2014
This paper deals with the analysis of current changes which have been recently shaping unprecedented urban structures in some suburban areas, due to the emerging of new consumptions spaces. In particular, the work aims at highlighting the effect of urban sprawl on the main Sicilian metropolitan areas, also moulded by the diffusion of the suburban retailing formats, in order to evaluate to what extent these dynamics have been contributing to the configuration of new urban landscapes and unprecedented socio-economic structures, not to mention the support in the process of containing social and economic marginalisation.
On poles and centers: Cities in the French style
2005
International audience; The “multicentric city” is an oversimplified view of the contemporary city. The term “center” covers a multi-faceted reality. A center is not only a concentration of activities. It also means domination,power, creation and interaction. Consequently, the “secondary centers” do not necessarily replicate the main center and they are clearly differentiated. We define the “pole” as a concentration ofactivities, whatever their nature, and the “center” as a concentration of high-order and strategic activities, so that the so-called multicentric cities may be both multipolar and monocentric. This suggests what we call the Multipolar-Monocentric hypothesis.The paper sets out …
When the growth of the town produces gardens
2019
The metropolis is a mother of gardens (Migge, 1919): in the beginning of the twenty 113 century, Leberecht Migge understood that the housing reform of the Modern Movement was also the reform of the urban orchards that could expand in wide common spaces between the buildings. The parks, in which the towns finally could stay in, included a humanized nature, organized in productive and leisure areas. Migge’s envisagement of “Stadtland” had many affinities with the “Extending town” by Giuseppe Samonà based on the shape as single matrix of built and cultivated spaces (Samonà, 1976). Both architects, forty years from each other and in different places of work - Germany and Italy - considered ur…
An inhabited bridge between city and countryside
2015
With its propagation beyond the ancient walls in the countryside, the contemporary urban pattern of Piacenza flakes off, is frayed, making feeble the limit between rus and urbs; the continuous and porous old town gives way to the sprawl. In this project, the main idea is that, through moderate and small signs, defined by thematic pavilions (which are the general goal to achieve according to the Summer School), the effects can affect the urban scale, in a much wider field than the real area of intervention. So in this case the pavilion itself is thought as a bridge on the threshold between city and countryside. Moreover, the soil design, starting from the edges of the city, allows to fix the…