Browsing by Author "Vicuna, Magdalena"

Now showing 1 - 9 of 9
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    Anatomies of Verticalization in the Metropolitan Area of Concepcion
    (2024) Vicuna, Magdalena; Baeriswyl, Sergio; De Dios, Berenice
    Verticalization refers to a transformation process where high-rise buildings become the predominant typology of urban development, leading to changes in morphology and functional fabric. This article examines the urban growth model based on verticalization in the Metropolitan Area of Concepci & oacute;n, southern Chile's most significant urban system. It aims to characterize the phenomenon of verticalization using the theory of density anatomies as a conceptual framework and to explain its localization logic from the perspectives of accessibility and urban planning. The methodology involves characterizing the anatomies of density and verticalization in the AMC. The results indicate that verticalization increased residential density, but population density decreased during the analyzed period. The discussion highlights three key findings: (1) Dispersed verticalization and density decrease; (2) Diverse anatomies of verticalization; and (3) Incidental and differentiating factors of verticalization: the silence and delayed action of urban planning. Territorial planning instruments have not played a predominant role in directing verticalization. Additionally, the relationship between verticalization and accessibility to transportation services is unclear, with variations in the location of high-rise residential buildings.
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    Chile
    (2018) Vicuna, Magdalena; Orellana Ossandón, Arturo
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    Detailed Map of Santiago by Alejandro Bertrand (1889-1890)
    (2013) Strabucci, Wren; Vicuna, Magdalena; Hidalgo, German; Rosas, Jose
    In the late 19th century the thorough survey of every street profile in Santiago generated a set of documents which, throughout the next century, allowed extensive operations of urban modernization. Implementations of sewerage systems, tram networks and power lines are tributary to this first plan that managed to integrate the vast reality of the city.
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    From urban form analysis to metrics for enhancing tsunami evacuation: Lessons from twelve Chilean cities
    (ELSEVIER, 2021) Leon, Jorge; Vicuna, Magdalena; Ogueda, Alonso; Guzman, Simon; Gubler, Alejandra; Mokrani, Cyril
    In the case of near-field tsunami emergencies, evacuation is considered the most important and effective method to save human lives. While significant efforts have been carried out to examine the relationships between urban forms and tsunami evacuation, challenges remain on delivering evidence-based urban design strategies, principles or metrics that could be applied by decision-makers to guide the physical development or retrofitting of tsunami-prone coastal communities around the world. In this paper, we propose a methodology that combines tsunami flood and evacuation modelling with statistical analysis, to examine the pedestrian evacuation potential of 67 urban samples extracted from 12 case studies in Chile. Our findings show that urban form parameters like the number of exit points out of an endangered area, the mean distance from the street network to these points, and the population density, can have a noticeable impact on tsunami evacuation times, which nonetheless is significantly dependent on the evacuees & rsquo; departure time. Moreover, we demonstrate that Chilean urban coastal development has been noticeably carried out through grid-like form patterns that might contribute to hinder evacuation in case of a tsunami emergency.
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    HIGH-DENSITY IN SANTIAGO: Contribution of prominent projects to the compact-city model
    (2021) Vicuna, Magdalena; De Cortillas, Catalina Torres
    The COVID-19 pandemic transformed physical proximity into a possible threat and, with it, cast doubt on urban density as a value. But the opposite - the sprawled city - means longer commuting that punishes the lower classes. Hence, the question is not whether to densify or not but rather how to do it. This text addresses this question through the analysis of well-known recent cases from Santiago.
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    Impact Fees and Residential Densification in the Metropolitan Area of Santiago, Chile: Critical Analysis of the New Law That Establishes a System of Contributions to Public Space
    (Taylor and Francis, 2020) Vicuna, Magdalena; Pumarino, Nicole; Urbina, Andrea
    This article presents and analyzes the potential contribution of the new Law of Contributions to Public Space, to the financing and implementation of public spaces. This article simulates the contribution of private intensive residential densification operations in 15 neighborhoods of the Metropolitan Area of Santiago. The Law constitutes a framework for moving towards balanced urban development through payments for impacts proportional to density. However, the results show that the contribution percentage is insufficient to implement the communal and inter-communal investment plans. In turn, their final contribution in land or money transfer responds to location or lot characteristics because tax assessment and the lot area have greater impact than the density of the residential building, on the contribution to public space. It is shown that when calculating the contributions with the occupation density, distortions occur with respect to the density planned by local zoning instruments.
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    Planning the metropolitan region in the era of governance: three Latin American cases
    (2024) Elinbaum, Pablo; Vicuna, Magdalena; Montes, Luis Miguel Valenzuela
    Although there is a large body of literature examining metropolitan regions, it is difficult to find specific literature on metropolitan planning, especially in Latin America. Few studies overlook the enormous diversity of institutional frameworks in a region that is often considered a homogeneous territory, failing to highlight many planning innovations. This paper aims to investigate the particularity of metropolitan planning in Latin America through a comparative case study of its three largest agglomerations: Greater Buenos Aires, the Valley of Mexico, and the Metropolitan Region of S & atilde;o Paulo. This analysis focuses on the instrumental, institutional, and procedural dimensions of planning.
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    THE PLANO DETALLADO DE SANTIAGO BY ALEJANDRO BERTRAND (1889-1890)
    (CAMBRIDGE UNIV PRESS, 2013) Strabucchi, Wren; Vicuna, Magdalena; Hidalgo, German; Rosas, Jose
    This article presents and analyzes the potential contribution of the new Law of Contributions to Public Space, to the financing and implementation of public spaces. This article simulates the contribution of private intensive residential densification operations in 15 neighborhoods of the Metropolitan Area of Santiago. The Law constitutes a framework for moving towards balanced urban development through payments for impacts proportional to density. However, the results show that the contribution percentage is insufficient to implement the communal and inter-communal investment plans. In turn, their final contribution in land or money transfer responds to location or lot characteristics because tax assessment and the lot area have greater impact than the density of the residential building, on the contribution to public space. It is shown that when calculating the contributions with the occupation density, distortions occur with respect to the density planned by local zoning instruments.
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    URBAN INTEGRATION AND QUALITY OF URBAN LIFE: DILEMMAS IN METROPOLITAN CONTEXTS
    (2019) Vicuna, Magdalena; Orellana, Arturo; Truffello, Ricardo; Moreno, Daniel; CEDEUS (Chile)
    This work explores the extent to which urban integration is related to a better quality of life in the metropolitan areas of Santiago, Valparaiso and Concepcion. This challenge has not been addressed so far as a result of its methodological and interpretation complexities. Through the comparative analysis of the Urban Life Quality Index (ICVU) and Urban Integration indices raised from the System of Urban Development Indicators and Standards (SIEDU), three key dimensions are addressed: sociocultural conditions, connectivity and mobility, and housing and environment. The results confirm in the case of the three metropolitan areas of Chile that urban integration is not necessarily expressed as the result of a better quality of life, opening an important question about the scope that a good endowment of public and private goods and services may have in order to guarantee a greater degree of integration in neighborhoods and municipalities, at least at the metropolitan level. Additionally, the importance of the geography of the metropolitan areas is revealed, due to some conflicting results obtained, generating a significant contribution for the design of public policies before their next examination in Chile.