Browsing by Author "Truffello Robledo, Ricardo"

Now showing 1 - 16 of 16
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    Assessing the impact of Digital Elevation Model resolution on Elevation Gain Estimations in Trail Running
    (IEEE, 2024) Sánchez, Raimundo; Egli, Pascal; Besomi, Manuela; Truffello Robledo, Ricardo
    This study addresses the challenge of accurately estimating Elevation Gain (EG) in trail running using GPS devices, where resolution of Digital Elevation Models (DEMs) plays a critical role. We propose an algorithmic enhancement to increase the resolution of a 4m DEM to 20cm, aligning it closely with high-resolution LiDAR models. Quantitative analyses reveal that this method significantly improves EG estimations, demonstrating a considerable reduction in error margins compared to conventional EG estimation using raw GPS. Specifically, our findings indicate that the bilinearly interpolated DEM achieves near-LiDAR accuracy at 20cm resolution, with error rates markedly decreasing at this scale. This study underscores the potential of using enhanced-resolution DEMs as a cost-effective alternative to LiDAR, particularly in applications like trail running where precise elevation data is crucial. Our approach not only offers a substantial improvement in the accuracy of physical workload assessments but also enhances the accessibility of high-quality elevation data for broader geographical and environmental applications.
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    Bikesharing and ordinary cyclists from Chile: Comparing trips, attitudes, and health-behaviours
    (2024) Mora, Rodrigo; Miranda Marquez, Sebastián; Truffello Robledo, Ricardo; Sadarangani, Kabir P.; CEDEUS (Chile)
    Bikesharing helps citizens solve “the last mile” problem actively and healthily. However, these schemes tend to be located in the affluent and central areas of cities and often demand users to pay by credit or debit cards that are typically out of reach for poor groups, especially in developing countries. Consequently, bikesharing tends to reproduce existing inequalities in cities, leaving vulnerable groups and those living in poor areas with no option to ride bicycles. This study compares bikesharing users and ordinary cyclists from Santiago de Chile in terms of their sociodemographic characteristics, health status, transport-modal patterns, attitudes, and perceptions toward cycling and bikesharing infrastructure. In all, 1272 adult participants (569 bikesharing users and 703 ordinary cyclists, 63% males) responded to a 12-min survey in Santiago de Chile. The main findings show that bikesharing users reported higher educational levels and car ownership than ordinary cyclists, made shorter trips, and cycled less often than ordinary cyclists. However, using shared bikes permits them to comply with nearly 53% of their weekly physical activity recommendations, as nearly 40% of bikesharing trips would be otherwise made by car. Bikesharing users also tend to visit central areas of Santiago and rarely visit less central and affluent zones.
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    Constitution and housing
    (Routledge, 2022) Vergara-Perucich, Francisco; Aguirre Núñez, Carlos Andrés; Encinas Pino, Felipe; Hidalgo, Rodrigo; Truffello Robledo, Ricardo; Ladrón de Guevara, Felipe
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    Covid-19 and city: Towards an integrated model of housing, microbiology, environment and urbanism
    (2021) Encinas Pino, Felipe; Soto Liebe, Katia; Aguirre Nuñez, Carlos;; González, Bernardo; Bustamante Gómez, Waldo; Schueftan, Alejandra; Ugalde, Juan; Blondel, Carlos; Truffello Robledo, Ricardo; Araya, Paz; Freed Huici, Carmen Marcela; CEDEUS (Chile)
    As of May 2020, the global health crisis caused by the SARS-CoV-2 virus moves its epicentre to Latin America, with cities showing high rates of poverty, segregation, and overcrowding. Current advances in microbiology make it possible to understand in depth the relationships between cities, COVID-19, and other microorganisms, but a conceptual framework to articulate them is lacking, especially in contexts where social determinants are so relevant. This article proposes an integrated approach to microbiology, housing, environment, and urbanism, based on a model of interactions and an empirical analysis applied to Santiago de Chile. It was possible to analyse how the propagation of COVID-19 in the city is enhanced by vulnerabilities of socio-spatial, residential and urban health, including an approach from the concept of energy poverty. At the same time, it was possible to verify how the variables associated with these vulnerabilities allowed to explain the incidence rate per 100 000 inhabitants through the different communes of Santiago de Chile. Among these, the level of housing overcrowding, the number of households with heads of household in precarious employment, and travel to the central business district stand out. Finally, the need for microbiological sampling to improve housing conditions, neighbourhoods, and cities propose a new research agenda for this Urban Microbiome" multidisciplinary team, contributing to overcoming the vulnerabilities identified in this research.
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    Déficit de la vivienda en el Gran Santiago: evidencia empírica sobre conflictos y argumentos para repensar la planificación metropolitana
    (2023) Correa Parra, Juan; Vergara Perucich, Francisco; Truffello Robledo, Ricardo; Aguirre Núñez, Carlos
    En Chile existe un déficit de vivienda estructural que ha consolidado su aumento a pesar de la importante cantidad y montos otorgados como parte de la política habitacional, la cual se basa en la entrega de subsidios a la demanda. El presente artículo evalúa espacialmente la relación contradictoria entre esta política habitacional y variables socioeconómicas que permiten concluir que los subsidios no permiten romper con el proceso reproductivo del déficit habitacional. Para esto se aplica un estudio estadístico espacial en base a una regresión lineal múltiple para una evaluación preliminar y una regresión geográficamente ponderada para precisar los alcances territoriales de los resultados. El estudio se centra en la ciudad de Santiago de Chile, donde se concentra el 40% de la población nacional. Los hallazgos dan cuenta de la profunda contradicción entre la lógica subsidiaria, el fuerte desarrollo inmobiliario y el aumento del déficit habitacional, en un momento preciso dado los cambios a la constitución que se están desarrollando en Chile, para lo cual el derecho a la vivienda es uno de los aspectos que se deben incorporar la nueva carta magna de esa nación.
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    Desigualdad socioespacial y cohesión barrial en el Gran Santiago: de los 'efectos de barrio' a los 'efectos subjetivados'
    (2023) Ortiz Vilches, Cristóbal Ignacio; Truffello Robledo, Ricardo; Pontificia Universidad Católica de Chile. Instituto de Estudios Urbanos y Territoriales
    Esta tesis explica cómo la desigualdad socioespacial impacta la cohesión barrial a través de mecanismos subjetivos en el Gran Santiago. Los estudios abordan esta relación mediante 'efectos de barrio', pero persisten vacíos teórico-empíricos sobre cómo la estructura socioespacial afecta la cohesión. Este estudio contribuye a analizar cómo algunos mecanismos subjetivos –la reputación territorial, la satisfacción residencial y el sentimiento de seguridad–, influyen en la cohesión barrial. Para ello empleamos modelos de ecuaciones estructurales con datos del Estudio Longitudinal Social de Chile y el Observatorio de Ciudades UC. Los resultados revelan que estos mecanismos medían la influencia de la estructura socioespacial, proceso denominado 'efectos subjetivados'. Además, la subjetividad tiene efectos propios, constituyendo una estructura simbólica relativamente independiente. Asimismo, estos mecanismos varían según el nivel socioeconómico del barrio, siendo más efectivos en barrios bajos y medios. En definitiva, la desigualdad socioespacial condiciona la cohesión barrial, pero debe ser percibida para afectarla.
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    Equity and accessibility of cycling infrastructure: An analysis of Santiago de Chile
    (2021) Mora, R.; Truffello Robledo, Ricardo; Oyarzún Casassus, Gabriel; CEDEUS (Chile)
    Bicycling produces a series of health, environmental, and economic benefits for both individuals and societies as a whole. Even so, promoting bicycle use faces innumerable challenges, especially ones related to equity, as cycling-related infrastructure and facilities tend to favor middle- and high-income groups. This manuscript focuses on Santiago, Chile, a highly unequal city composed of 34 autonomous communes with no central authority. As such, decisions regarding cycling infrastructure and facilities are made by each commune without much attention to neighboring areas. Given that situation, this paper aims (i) to describe and analyze cycling infrastructure over time and how it relates to normative and socioeconomic changes in the city that have shaped and are shaped by travel patterns; and (ii) to examine the distribution of bike lanes in relation to administrative divisions, residential areas, and employment opportunities throughout the city. To do so, the official cadaster of bicycle lanes in Santiago was inspected during numerous field visits, and a series of analyses were conducted that prioritized the concept of equity. The results show that, despite the continuous growth of Santiago's bicycling infrastructure in the past 15 years, equity remains elusive because most bicycle lanes are concentrated in central communes where middle- and upper-middle income groups live. That situation is caused by weak governance, a fragmented urban structure, and high degrees of inequality, which have made urban planning a difficult, if not impossible, task. Based on those results, several policy recommendations are proposed to improve Santiago's current network of cycling infrastructure.
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    Especulación, renta de suelo y ciudad neoliberal o por qué con el libre mercado no basta
    (2019) Encinas Pino, Felipe; Truffello Robledo, Ricardo; Aguirre, C.; Hidalgo, Rodrigo; CEDEUS (Chile)
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    Instrumento de acción participativa (IAP): Levantamiento interdisciplinario de información sobre estacionamientos de delivery en Santiago Centro.
    (Facultad de Arquitectura, Diseño y Estudios Urbanos Pontificia Universidad Católica de Chile, 2023) Vera Álvarez, Rodrigo; Mollenhauer Gajardo, Katherine Alexandra; Encinas Pino, Felipe; Truffello Robledo, Ricardo; Pontificia Universidad Católica de Chile
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    Integración urbana y calidad de vida: disyuntivas en contextos metropolitanos
    (2019) Vicuña del Río, María Magdalena; Orellana Ossandón, Arturo; Truffello Robledo, Ricardo; Moreno Alba, Daniel Felipe; CEDEUS (Chile)
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    Introduction
    (Political Economy of Housing in Chile, 2022) Vergara Perucich, Francisco; Aguirre Núñez, Carlos Andrés; Encinas Pino, Felipe; Hidalgo, Rodrigo; Truffello Robledo, Ricardo; Ladrón de Guevara, Felipe; Vergara Perucich, Francisco; Aguirre Núñez, Carlos Andrés; Encinas Pino, Felipe; Hidalgo, Rodrigo; Truffello Robledo, Ricardo; Ladrón de Guevara, Felipe
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    Land and speculation
    (Routledge, 2022) Vergara Perucich, José Francisco; Aguirre Núñez, Carlos Andrés; Encinas Pino, Felipe; Hidalgo, Rodrigo; Truffello Robledo, Ricardo; Ladrón de Guevara, Felipe
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    Planning for fear of crime reduction: assessing the impact of public space regeneration on safety perceptions in deprived neighborhoods
    (Elsevier, 2023) Navarrete Hernández, Pablo; Luneke, Alejandra; Truffello Robledo, Ricardo; Fuentes Arce, Luis; CEDEUS (Chile)
    Fear of crime significantly reduces people's time-space access to and use of public space, notably in high-crime neighborhoods where concerns around personal safety are more acute. One widely used strategy to reduce fear of crime is the regeneration of the built environment. However, tension remains on whether this strategy is effective, and if it is, then where, which and for whom public space interventions work. This research, incorporating a gender perspective, assesses whether neighborhood-level regeneration of public space significantly enhances or reduces residents' perceptions of safety in deprived urban areas with a gender perspective. To test these impacts, we run a randomized control trial with 100 residents in a high-crime neighborhood in Santiago de Chile. A series of geotagged photographs of the area and ten treatment photo simulations of proposed interventions were rated by residents according to their perceived safety related to crime. The results suggest that: highly unsafe perceptions cluster in specific neighborhood locations and are particularly acute for women; the regeneration of public spaces significantly increases perceived safety for both men and women; and the effectiveness of different interventions is gender-specific. The results suggest, while an effective technique, public space regeneration in deprived neighborhoods can be further optimized through urban design and planning policy that are space- and gender-specific. The technique presented could support researchers and practitioners to understand the spatial distribution of perceptions of safety, to select effective interventions to make deprived neighborhoods feel safer, and to assess the impact of regeneration strategies.
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    Santiago de Chile through the eyes of Jane Jacobs. Analysis of the conditions for urban vitality in a Latin American metropolis
    (2020) Fuentes Arce, Luis; Miralles Guasch, C.; Truffello Robledo, Ricardo; Delclòs Alió, X.; Flores, M.; Rodríguez, S.; CEDEUS (Chile)
    The urban planning ideas proposed by Jane Jacobs in the 1960s remain relevant to this day, promoting a perspective on the relationship between urban morphology and the community that takes into consideration the experiences of the people themselves in the planning of cities. With Jacobs’ ideas in mind, this article seeks to explore the urban territory of Santiago, Chile, and to assess the vitality of its neighborhoods with their diversity of morphological, architectural, and spatial characteristics. The results reveal a spatial reality that differs considerably from typical interpretations of this and other cities across Latin America, characterized by a strong radial center–periphery dynamic interspersed with sub-centers of high vitality, mainly in the form of rural towns and villages that, over time, became absorbed into the urban fabric of Santiago, along with social housing estates located on what used to be the urban periphery.
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    Territorial Infrastructure Support Index (ISIT): A theoretical and empirical contribution to the analysis of lag zones in Chile
    (2023) Orellana Ossandón, Arturo; Truffello Robledo, Ricardo; Moreno Alba, Daniel Felipe; Altamirano López, Héctor; Flores Castillo, Mónica Andrea; Puig, Isidro; Instituto de Estudios Urbanos; UC
    Through a review of the literature on infrastructure, a study of internationalexperiences, expert knowledge, and the elaboration of a Territorial Infrastructure SupportIndex (ISIT), this paper provides a comparative analysis of the development conditions –regarding infrastructure and services – for the location of productive economic activities,at the regional and provincial level in Chile. The results show contrasts between regionsand within them, revealing the state of the current situation for each of the six dimensions:Water, Energy, Telecommunications, Roads, Logistics, and Resilience, as well as for theirsynthetic indicator ISIT. The results of the ISIT have been contrasted with the recentdefinitions made by the Government of Chile regarding the definition of lag zones, findingimportant coincidences at the provincial level that allow validating the ISIT as a tool forthe analysis of gaps in infrastructure and equipment for development of economic andproductive activities in Chile.