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- ItemAccessibility and the Capabilities Approach: a review of the literature and proposal for conceptual advancements(TAYLOR & FRANCIS LTD, 2021) Vecchio, Giovanni; Martens, Karel; CEDEUS (Chile)The Capability Approach, developed by Sen and Nussbaum, has recently gained increasing attention in the transport literature. This paper adds to this growing body of literature by investigating how the approach can generate consistent evaluative approaches to inform (urban) transport planning. The paper reviews the mobility literature that has investigated the Capabilities Approach and identifies the opportunities and challenges of employing the approach as a basis for transport planning. The review highlights the different, and sometimes patchy, ways in which the key notions of the approach have been conceptualised and operationalised. Discussing this growing but scattered literature, the paper embraces the emerging direction that understands accessibility as the capability that transport planning and policy should consider. Further refining this understanding, the paper proposes a twofold evaluative approach combining a top-down and a bottom-up component to capture the myriad of conversion factors shaping people's accessibility-as-capability and functioning. By systematically adopting the Capabilities Approach, transport planning and mobility policies will be directed to enhancing each person's freedom to pursue the life they have reason to value in contemporary societies.
- ItemAir Pollution and Cardiorespiratory Changes in Older Adults Living in a Polluted Area in Central Chile(SAGE PUBLICATIONS LTD, 2022) Cortes Arancibia, Sandra Isabel; Leiva Cisternas, Cinthya Aracely; Ojeda Valenzuela, María José; Bustamante-Ara, Natalia; Wambaa, Wanjiku; Domínguez, Alan; Pasten Salvo, Carlos; Rodriguez Peralta, Camila; Rojas Arenas, Barbara; Vargas Mesa, Diego; Ahumada Padilla Ericka Del Pilar; CEDEUS (Chile)One recognized cause of cardiorespiratory diseases is air pollution. Older adults (OA) are one of the most vulnerable groups that suffer from its adverse effects. The objective of the study was to analyze the association between exposure to air pollution and changes in cardiorespiratory variables in OA. Observational prospective cohort study. Health questionnaires. blood pressure (BP) measurements, lung functions, respiratory symptoms, physical activity levels, and physical fitness in high and low exposure to air pollution were all methods used in evaluating OAs in communes with high contamination rates. Linear and logistic models were created to adjust for variables of interest. A total of 92 OA participated in this study. 73.9% of the subjects were women with 72.3 +/- 5.6 years. 46.7% were obese, while 12.1% consumed tobacco. The most prevalent diseases found were hypertension, diabetes, and cardiovascular disease. Adjusted linear models maintained an increase for systolic BP of 6.77 mmHg (95% CI: 1.04-12.51), and diastolic of 3.51 mmHg (95% CI: 0.72-6.29), during the period of high exposure to air pollution. The adjusted logistic regression model indicated that, during the period of high exposure to air pollution increase the respiratory symptoms 4 times more (OR: 4.43, 95% CI: 2.07-10.04) in the OA. The results are consistent with an adverse effect on cardiorespiratory variables in periods of high exposure to air pollution in the OA population.
- ItemAn assessment of the ecological validity of immersive videos in stated preference surveys(ELSEVIER SCI LTD, 2020) Rossetti Youlton, Tomás; Hurtubia González, Ricardo; CEDEUS (Chile)Images, videos, and virtual reality have been widely used in the literature to portray complex attributes to survey respondents. It is reasonable to expect immersive videos will be increasingly used in the future due to their decreasing costs and potentially more accurate representation of reality. Nevertheless, the literature has not sufficiently tested their ecological validity, which can be defined as the extent to which the results they produce in a laboratory setting, such as in choice experiments, are close enough to the results that would have been obtained in a real-life setting. The following work presents a comparison of two representation formats, images and immersive videos, to verify if they can elicit the same perceptual responses of pedestrians as real environments. To do this, a survey was carried out using these two formats as well as on-site interviews. Using a MIMIC approach, and after controlling for all relevant sociodemographic variables, results show that perceptions elicited through immersive videos were not different from those elicited in reality in one qualitative variable (perception of safety and security) out of three relevant ones identified. Furthermore, results also show immersive videos can induce a smaller distortion than photographs.
- ItemApplication of an incentive for bus drivers to achieve an improvement in the quality of service(Elsevier, 2020) Chaparro, Alejandra; Galilea Aranda, Patricia Viviana; Muñoz Abogabir, Juan Carlos; Poblete Lavanchy, Joaquín José; CEDEUS (Chile)Concession contracts of operating companies of the public transport system of Santiago, consider important fines if companies fail to comply with the operating plan, regularity and other operational variables included in those contracts. On the other hand, drivers receive a fixed payment with no pecuniary incentive related with their performance. The main objective of this paper is to analyze the application of a monetary incentive for bus drivers focused on increasing the number of passengers transported to test the existence of multitasking, specifically checking the behavior of drivers regarding bus speed. We conducted a field experiment with an operator of Transantiago and we used a difference in differences analysis to show that with the pecuniary incentive tested, drivers raised their transported passengers in 9% when riding in long bus routes. We found some evidence of multitasking associated with a decrease in speed of 3%. Thus, our research provides suggestive evidence that inefficiencies may be occurring in the operation because of the lack of adequate incentives for drivers.
- ItemArtificial intelligence in the new forms of environmental governance in the Chilean State: Towards an eco-algorithmic governance(Wiley, 2023) Tironi, Martin; Lisboa, Diego Ignacio Rivera; CEDEUS (Chile)One of the most popular fields of experimentation with technological solutions based on Artificial Intelligence (AI) and algorithmic systems is environmental studies, particularly as it relates to climate change. The promise of mitigating the impact of human activity on the environment through the introduction of sensor technologies has given way to a series of narratives around their role and capabilities. Focusing on the case of Environmental Intelligence, an initiative developed by the Chilean government's Superintendency for the Environment that incorporates AI into the monitoring process, we offer arguments regarding the articulation of an eco-algorithmic governmentality in which the environment is desingularized and reduced to a series of metrics associated with regulatory compliance. The operations that serve to prototype and give shape to the initiative created a series of tensions around the possibility of arriving at other forms of involvement in and understanding of the environment. This article shows how this eco-algorithmic governmentality conceptualizes the environment as an entity that can be optimized and rationalized, generating epistemic frictions with other logics of relationality and situated and terrestrial sensibility.
- ItemCoastal Evolution in a Wetland Affected by Large Tsunamigenic Earthquakes in South-Central Chile: Criteria for Integrated Coastal Management(MDPI, 2021) Martínez Reyes, Carolina Del Pilar; Sepúlveda-Zuñiga, Einer; Villagrán, Mauricio; Rojas, Octavio; Gómez, Matias; López, Pablo; Rojas Quezada, Carolina Alejandra; CEDEUS (Chile)The coastal evolution of the microtidal Tubul-Raqui wetland in south-central Chile (36 degrees S), which historically has been affected by large earthquakes and tsunamis, particularly the 1960 (Mw = 9.5) and 2010 (Mw = 8.8) subduction earthquakes and their associated tsunamis, is analyzed. Historical aerial photographs and topographic and bathymetric surveys from the 1961-2017 period, as well as salinity, sediment, and flora data obtained following the 2010 earthquake were used for comparison with data from prior to the event. A steady state of the shoreline was established, with an average erosion rate of -0.016 m/year in the 1961-2017 period. However, erosion predominated in the period between these two large earthquakes (1961-2009), with an average rate of -0.386 m/year. The wetland dried up, partially recovered saline intrusion a year later, and recovered the salinity conditions it had before the earthquake two years later. The postearthquake effects on the floristic composition were not significant, with the species Spartina densiflora, which presented a high tolerance to these types of changes, predominating. Moreover, 75 percent of the taxa in pre- and postearthquake conditions coincided, with the halophyte species Spartina densiflora, Sarcocornia fructicosa, and Cotula coronopifolia predominating, while the best-conserved community was Spartina-Sarcocornia association located in the saltmarsh. Seven years after the earthquake, the shoreline presented an accretion rate of 2.935 m/year; if the current tectonic conditions prevail, an erosive trend can be expected in the coming decades. The morphological variability and the changes associated with the shoreline in this wetland are strongly controlled by tectonic factors. Criteria aimed at integrated coastal management to promote its occupancy and use in accordance with its evolutionary dynamics are proposed.
- ItemComparing degrees of 'publicness' and 'privateness' in school systems: the development and application of a public-private index(Routledge Journals, Taylor & Francis LTD, 2022) Gutierrez, Gabriel; Lupton, Ruth; Carrasco Rozas, Alejandro Javier; Rasse Figueroa, Alejandra Paz; CEDEUS (Chile)The process of privatising services historically provided by the state has blurred the boundaries between what is considered to be 'private' and 'public'. However, few efforts have been made in the educational arena to develop tools to measure this process. Most of the previous research has relied on narrow definitions about what is private and what is public. This work proposes a tool to measure the degree of publicness-privateness of school systems, avoiding binary separation of the concepts. We develop an index and test this tool in two different landscapes: London and Santiago. In these cases, it serves to illustrate major changes in the levels of public-private participation in both school systems, reflecting differences between the systems and over time. We conclude that the index has potential for development and use in the analysis of public and private dimensions in education in broader international contexts.
- ItemComparing green spaces provision and accessibility indicators over a latitudinal gradient and multiple climate zones(ELSEVIER GMBH, 2023) De la Barrera, Francisco; Reyes Paecke, Sonia; Truffello, Ricardo; De la Fuente, Helen E.; Salinas, Valentina; Villegas, Rodrigo A.; Steiniger, Stefan; CEDEUS (Chile)Monitoring urban green space (UGS) indicators is key to assessing progress against the UNs sustainable devel-opment goals (SDGs). Within these indicators, measuring the provision of UGS as well as its accessibility is considered a major objective. However, neither the relationship between the two indicators, nor differences related to different types of UGS have been adequately evaluated. In this paper, these two indicators are calculated and analyzed for four size-based types of UGS and for 69 municipalities, which are part of the 16 regional capital cities of Chile. For the provision indicator, the average calculated over all municipalities does not reach the often proposed standard of 11 sq.m/inhab., but only 5.29 sq.m/inhab. Regarding the accessibility indicator, when a walking speed of 4 km/h is considered, the smaller residential green spaces have the highest accessibility (65 % of the population have access), but accessibility for larger GS is low. When a walking speed of 2 km/h is assumed, then accessibility drops to 29 %, 5 %, 5 % and 5 % respectively. We found that calculation results for the four types of UGS are statistically different, and therefore one type cannot replace another in case of monitoring: Higher UGS provision does not guarantee higher accessibility.
- ItemCOVID-19 and the worsening of health inequities in Santiago, Chile(OXFORD UNIV PRESS, 2021) Bilal, Usama; Alfaro, Tania; Vives, Alejandra; CEDEUS (Chile)
- ItemDel barrio al conjunto: Espacio público y sociabilidad en la vivienda social de Santiago(UNIV CHILE, 2022) Link, Felipe; Senoret, Andres; Figueroa, Cristhian; CEDEUS (Chile)Chilean housing policy has suffered a profound transformation during the last decades. In the sixties and the beginning of the seventies a model emerged based on community attributes, promoting community organization and the construction of well-provided neighborhoods that, in addition, had abundant public space. In 1973, the focus shifted with the implementation of a subsidiary model that promoted single-family and individual solutions and payed far less attention to the collective development of the residential habitat. Although the continuation of this model until today has significantly reduced the housing shortage, it has been unable able to reproduce a residential space of community ties. This article aims to investigate the impacts of both models on the configuration, use and appropriation of the public space and the neighborhood sociability of the residents through a multi-methods analysis of two social housing projects located in Santiago de Chile. The findings reaffirm the relevance of the history and the organization of the neighborhoods, but also confirm the significance of planned public spaces and the arrangement of the built environment as dimensions that can promote or suppress social practices.
- ItemDISCIPLINARY INFLECTIONS: Contesting Three Concepts for the Construction of the Post-Neoliberal City(PONTIFICIA UNIV CATOLICA CHILE, ESCUELA ARQUITECTURA, 2021) Encinas, Felipe; Aguirre, Carlos; Vergara Perucich, Francisco; Tironi, Martin; Truffello, Ricardo; Freed, Carmen; Hidalgo, Rodrigo; CEDEUS (Chile)When words become fashionable, their use modifies their meaning. By understanding this performative condition, this text analyzes the current implications of the concepts of sustainability, resilience, and integration. Then, it argues the need to overcome the neoliberal city if we want these meanings to become real.
- ItemEvaluating the health effects of place-based slum upgrading physical environment interventions: A systematic review (2012-2018)(PERGAMON-ELSEVIER SCIENCE LTD, 2020) Henson, Rosie Mae; Ortigoza, Ana; Martinez Folgar, Kevin; Baeza, Fernando; Caiaffa, Waleska; Vives Vergara, Alejandra; Diez Roux, Ana, V; Lovasi, Gina; CEDEUS (Chile)Rapid urbanization in low- and middle-income countries (LMIC) is associated with increasing population living in informal settlements. Inadequate infrastructure and disenfranchisement in settlements can create environments hazardous to health. Placed-based physical environment upgrading interventions have potential to improve environmental and economic conditions linked to health outcomes. Summarizing and assessing evidence of the impact of prior interventions is critical to motivating and selecting the most effective upgrading strategies moving forward. Scientific and grey literature were systematically reviewed to identify evaluations of physical environment slum upgrading interventions in LMICs published between 2012 and 2018. Thirteen evaluations that fulfilled inclusion criteria were reviewed. Quality of evaluations was assessed using an adapted Effective Public Health Practice Project Quality Assessment Tool for Quantitative Studies. Findings were then pooled with those published prior to 2012. Narrative analysis was performed. Of thirteen evaluations, eight used a long-itudinal study design ("primary evaluations"). All primary evaluations were based in Latin America and included two housing, two transportation, and four comprehensive intervention evaluations. Three supporting evaluations assessed housing interventions in Argentina and South Africa; two assessed a comprehensive intervention in India. Effects by intervention-type included improvements in quality of life and communicable diseases after housing interventions, possible improvements in safety after transportation and comprehensive interventions, and possible non-statistically significant effects on social capital after comprehensive interventions. Effects due to interventions may vary by regional context and intervention scope. Limited strong evidence and the diffuse nature of comprehensive interventions suggests a need for attention to measurement of intervention exposure and analytic approaches to account for confounding and selection bias in evaluation. In addition to health improvements, evaluators should consider unintended health consequences and environmental impact. Understanding and isolating the effects of place-based interventions can inform necessary policy decisions to address inadequate living conditions as rapid urban growth continues across the globe.
- ItemExcess Mortality during the COVID-19 Pandemic in Cities of Chile: Magnitude, Inequalities, and Urban Determinants(SPRINGER, 2022) Alfaro, Tania; Martinez-Folgar, Kevin; Vives, Alejandra; Bilal, Usama; CEDEUS (Chile)We estimated excess mortality in Chilean cities during the COVID-19 pandemic and its association with city-level factors. We used mortality, and social and built environment data from the SALURBAL study for 21 Chilean cities, composed of 81 municipalities or "comunas", grouped in 4 macroregions. We estimated excess mortality by comparing deaths from January 2020 up to June 2021 vs 2016-2019, using a generalized additive model. We estimated a total of 21,699 (95%CI 21,693 to 21,704) excess deaths across the 21 cities. Overall relative excess mortality was highest in the Metropolitan (Santiago) and the North regions (28.9% and 22.2%, respectively), followed by the South and Center regions (17.6% and 14.1%). At the city-level, the highest relative excess mortality was found in the Northern cities of Calama and Iquique (around 40%). Cities with higher residential overcrowding had higher excess mortality. In Santiago, capital of Chile, municipalities with higher educational attainment had lower relative excess mortality. These results provide insight into the heterogeneous impact of COVID-19 in Chile, which has served as a magnifier of preexisting urban health inequalities, exhibiting different impacts between and within cities. Delving into these findings could help prioritize strategies addressed to prevent deaths in more vulnerable communities.
- ItemExposición a contaminantes provenientes de termoeléctricas a carbón y salud infantil: ¿cuál es la evidencia internacional y nacional?(Sociedad Chilena de Pediatría, 2019) Cortés Arancibia, Sandra; Yohannessen, Karla V.; Tellerias C., Lidya; Ahumada P., Ericka; CEDEUS (Chile)Las centrales termoeléctricas (CTE) a carbón representan un riesgo para la salud de las comunidades expuestas. Se realizó una revisión de la literatura científica nacional e internacional enfocada en los efectos en salud de niños y la exposición a emisiones al aire provenientes de CTE a carbón. Se incluyeron 21 artículos para su revisión en texto completo, donde se midieron efectos en salud infantil relacionados a presencia de biomarcadores de exposición y efecto, daños perinatales, neuroconductuales y respiratorios principalmente. La exposición a emisiones de CTE a carbón en el embarazo se asoció a niños con bajo peso y muy bajo peso al nacer, menor talla, menor diámetro de Circunferencia del Cráneo (CC) y prematuridad; el diámetro de CC aumentó en recién nacidos después del cierre de CTE. Se encontraron menor coeficiente de desarrollo (CD) y coeficiente intelectual (CI) en niños expuestos a emisiones de CTE a carbón comparados con no expuestos; CD aumentó cuando la central fue cerrada. Por otro lado, vivir en zonas con fuentes de emisión de mercurio (asociadas a CTE y plantas de cemento que funcionan con carbón) se asoció con mayor riesgo de autismo. En salud respiratoria, los artículos fueron consistentes en reportar menor función pulmonar en niños residentes en zonas expuestas a fuentes de combustión de carbón comparados con grupos de niños no expuestos. Es muy necesario abrir el debate en Chile sobre los riesgos controlables a los que se enfrenta la población infantil a consecuencia de plantas generadoras de energía instaladas en Chile.
- ItemFair transport policies for older people: accessibility and affordability of public transport in Santiago, Chile(SPRINGER, 2022) Vecchio, Giovanni; Tiznado-Aitken, Ignacio; Castillo, Bryan; Steiniger, Stefan; CEDEUS (Chile)In this paper, we test how different public transport policy scenarios score in terms of fairness for a specific population group, considering a more complex representation of mobility-related inequalities and the policy implications of transport justice. To do so, we assess potential accessibility to public transport in Santiago de Chile under different policy scenarios, focusing on older people as a group whose demographic and socioeconomic conditions can determine different forms of disadvantage. We compare alternative accessibility policies based on the expansion of the Metro infrastructure network or on reduced public transport fares, considering the interaction between the spatial availability and the affordability of public transport. Results show that subsidized fares for public transport services are more beneficial to expand the accessibility of older people, especially those with lower incomes, while the expansion of the Metro network benefits mainly middle- and high-income older people. The proposed analysis is a first step towards a more detailed, place-based reading of mobility-related inequalities, aimed at assessing alternative policy measures.
- ItemFrom the Utopia of Sustainable Development to Sustainable Topoi(CAMBRIDGE UNIV PRESS, 2023) Salazar, Gonzalo; Acuna, Valentina; Valera, Luca; CEDEUS (Chile)The hegemonic discourse of sustainable development adopted as an international alternative solution to the socio-ecological crisis has implied a progression of the modern utopian project and most importantly, an intrinsic contradiction and omission that positions sustainable development as something that is not in any place. To understand, discuss, and transcend this oxymoron, we first review the modern utopian project and analyze its paradigmatic and ontological assumptions about knowledge, time, and space. Second, we show that sustainable development just re-adapted the founding premises of the modern utopias. Third, to transcend the modern utopian facet of sustainable development, we suggest an understanding of sustainability that stems from a topographical way of thinking. We suggest this approach allows us to seek alternatives to the modern epistemology and ontology that have shaped the current dominant vision of sustainable development. Finally, we propose to move from the modern utopia of sustainable development to the praxis of topographical sustainabilities to trigger a more comprehensive and relational praxis of sustainability.
- ItemHow do different payment schemes to operators affect public transport concessions? A microeconomic model(ELSEVIER SCI LTD, 2020) Pablo Sepulveda, Juan; Galilea, Patricia; CEDEUS (Chile)In many large cities worldwide, private companies operate public transport systems under concession contracts granted by the local governments. The performance of these concessions, including the quality of service and amount of subsidy, is often an issue of public debate. In this context, a major factor that determines performance is the concession contract. Payment mechanisms (established in the contract) influence the operator's decisions by providing certain incentives. Therefore, it is important to study the effects of the payment mechanism on the performance of the transport system.
- ItemHow do we densify and socially integrate our cities? On the efficiency of urban property incentives in the vicinity of mass transit stations(2016) Greene Zuniga Margarita; Mora, Rodrigo; Waintrub Santibanez Natan; Figueroa Martinez Cristhian; Ortuzar Salas Juan De Dios; CEDEUS (Chile)Stated choice methods were used to measure the effect of different types of incentives (direct and indirect subsidies, changes in building regulations and others) in the willingness to build denser and socially integrated residential projects by real estate firms in the vicinity of metro and bus rapid transit (BRT) stations. A sample of 52 professionals, from building companies and real estate firms, was asked to evaluate a series of urban scenarios under various incentive schemes; in each case they had to choose whether they would be willing to start a conventional residential project (i.e. for buyers belonging to the same socio-economic group) or a socially integrated one (i.e. mixing buyers from different groups). Results show that an aggregate level, only 16% of respondents would be interested in starting new residential projects at those locations. However, the availability of incentives could have a significant impact in the willingness to initiate higher density projects around the stations and also, but to a lesser degree, in the willingness to initiate socially mixed residential projects.
- ItemInequalities in life expectancy in six large Latin American cities from the SALURBAL study: an ecological analysis(ELSEVIER SCI LTD, 2019) Bilal, Usama; Alazraqui, Marcio; Caiaffa, Waleska T.; Lopez Olmedo, Nancy; Martinez Folgar, Kevin; Miranda, J. Jaime; Rodriguez, Daniel A.; Vives, Alejandra; Diez Roux, Ana V.; CEDEUS (Chile)Background Latin America is one of the most unequal regions in the world, but evidence is lacking on the magnitude of health inequalities in urban areas of the region. Our objective was to examine inequalities in life expectancy in six large Latin American cities and its association with a measure of area-level socioeconomic status.
- ItemIntegrated Water Resource Management and Energy Requirements for Water Supply in the Copiapo River Basin, Chile(MDPI, 2014) Suarez, Francisco; Munoz, Jose F.; Fernandez, Bonifacio; Dorsaz, Jean Marc; Hunter, Christian K.; Karavitis, Christos A.; Gironas, Jorge; CEDEUS (Chile)Population and industry growth in dry climates are fully tied to significant increase in water and energy demands. Because water affects many economic, social and environmental aspects, an interdisciplinary approach is needed to solve current and future water scarcity problems, and to minimize energy requirements in water production. Such a task requires integrated water modeling tools able to couple surface water and groundwater, which allow for managing complex basins where multiple stakeholders and water users face an intense competition for limited freshwater resources. This work develops an integrated water resource management model to investigate the water-energy nexus in reducing water stress in the Copiapo River basin, an arid, highly vulnerable basin in northern Chile. The model was utilized to characterize groundwater and surface water resources, and water demand and uses. Different management scenarios were evaluated to estimate future resource availability, and compared in terms of energy requirements and costs for desalinating seawater to eliminate the corresponding water deficit. Results show a basin facing a very complex future unless measures are adopted. When a 30% uniform reduction of water consumption is achieved, 70 GWh over the next 30 years are required to provide the energy needed to increase the available water through seawater desalination. In arid basins, this energy could be supplied by solar energy, thus addressing water shortage problems through integrated water resource management combined with new technologies of water production driven by renewable energy sources.
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