Equidad territorial en Medellín: espacio público, amenazas naturales y calidad del aire

Cárdenas, María Fernanda; Escobar, Jhon F.; Gutiérrez, Katheryn

doi:10.37838/unicen/est.27-046

Cited by 5 publications

(3 citation statements)

References 4 publications

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“…We used official sources of information for all four cities. In Medellín, we used data on public spaces, green areas, and road networks available in the 2014 Territorial Plan (POT) and the data updated by Cárdenas et al (2020). In both Colombia cities: Medellín and Cartagena, we used demographic data available in…”

Section: Data Sources and Techniquesmentioning

confidence: 99%

Accessibility to public spaces: Boosting ecosystem services in urban areas in four Latin American cities

Montoya-Tangarife

Duarte

Guajardo

et al. 2022

Front. Sustain. Cities

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The supply and demand of ecosystem services in urban areas depends, among other things, on the configuration and location of public spaces with vegetation and the access citizens have to them. Providing equitable access to urban services has been a top priority of public policy worldwide, but urban ecosystem services (UES) are not always considered when discussing urban services. Since access to UES may positively impact wellbeing and promote urban sustainability, we analyze accessibility to public spaces with different greening characteristics in four Latin American cities: Cartagena de Indias and Medellín (Colombia) Valparaíso (Chile) and Quito (Ecuador). We argue that considering distribution of, and accessibility to, public spaces with different greening characteristics provides insights for policymakers seeking to increase the potential provision of UES through public space. We classified existing public spaces into four categories using photointerpretation of high-resolution QuickBird satellite images: (1) tree predominance, (2) grass predominance, (3) hard zone predominance, and (4) bare soil predominance. We evaluated physical accessibility using spatial analysis of road networks, considering a walking distance that can be covered in different ranges of time. Our results show that three of the four cities have good accessibility to public spaces within 15 min. However, this distance increases when we focus on access to public spaces with vegetation and green areas (categories 1 and 2). This study contributes to research on ecosystem services by analyzing conditions of accessibility to public spaces which offer direct contact with nature and a potential supply of UES within urban areas. It also highlights the importance of conceiving and planning public space as direct providers of UES, an important aspect of improving environmental quality and positively impacting people's health and wellbeing.

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Section: Data Sources and Techniquesmentioning

confidence: 99%

Accessibility to public spaces: Boosting ecosystem services in urban areas in four Latin American cities

Montoya-Tangarife

Duarte

Guajardo

et al. 2022

Front. Sustain. Cities

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“…Los beneficios generados por los EP deben llegar a todos los ciudadanos, para lo cual es relevante que éstos se distribuyan por toda el área urbana. Más aún, la equidad territorial indica que su distribución debería privilegiar a los ciudadanos con menores recursos, ya que ellos tienen menos posibilidades de proveerse de espacios de recreación, zonas verdes y sitios de encuentro de manera privada (Boone et al, 2009;Cárdenas et al, 2020;Ojeda Casares et al, 2008;Zuindeau, 2007).…”

Section: Introductionunclassified

Espacio público efectivo en Manizales y Medellín, Colombia: evaluación cuantitativa de su generación y distribución en dos momentos normativos

Cárdenas

Giraldo-Ospina

2021

urbe, Rev. Bras. Gest. Urbana

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Resumen El espacio público -EP- urbano es fundamental para las ciudades sostenibles, resilientes, habitables. Su relevancia es reconocida por políticos, instituciones y academia. No obstante, su materialización no es la proyectada, más si se trata de ciudades andinas en relieves montañosos como Manizales y Medellín en Colombia. Este trabajo exploró las directrices sobre EP en las normas nacionales y locales establecidas en los planes de ordenamiento territorial -POT- de los municipios, de los cuales hay dos versiones, dos momentos. Así mismo, evaluó los EP al inicio de cada POT para determinar cuánto nuevo EP se logró generar y en qué partes de la ciudad, como un indicio para analizar la equidad en su distribución. Se encontraron cambios importantes entre las dos generaciones de POT en ambas ciudades en cuanto a los discursos, y concepciones del EP, intenciones declaradas de equidad, concentración de EP en algunas zonas urbanas y carencia en otras. Las ciudades siguen lejos de lograr las metas planteadas en los indicadores cuantitativos y, además, están perdiendo EP por ocupación de privados. Los retos son cada vez mayores, pero además de lo cuantitativo, es necesario considerar características de calidad, accesibilidad y conectividad que dan vitalidad a estos espacios.

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“…This dataset classified the number of students associated with the levels "Insufficient", "Minimum", "Satisfactory", and "Advanced" according to the 33 departments of Colombia and the knowledge areas mentioned above. The study aimed to identify statistical and geospatial relationships in the selected dataset using the free software tool (GPL licensed) GeoDa [20] serve as a reference to be extrapolated to other educational contexts, such as the Saber tests implemented in secondary and higher education.…”

Section: Introductionmentioning

confidence: 99%

Application of Spatial Data Science on Results of the Saber 5 Test

2021

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The purpose of the Saber tests is to improve the quality of education in Colombia through periodic evaluations of the competencies development in basic and secondary education students. Although different data mining studies of the Saber tests’ results have been carried out, not many are based on spatial analysis of data in the educational field. This article presents a study based on exploratory and spatial analyses of the 2016 Saber 5 test dataset, which aims at identifying the relationship between the results of the test and the geographic or spatial distribution of the data. For the development of this research, four methodological phases were established: data selection and collection, correlation analysis, spatial data analysis, obtaining conclusions. Using the free GeoDa tool, a quantile and regression analysis was performed on the results of the Language, Mathematics, and Natural Sciences areas. Similarly, an analysis based on clustering was performed using the KMeans algorithm. The results obtained made it possible to determine the linear and spatial correlation between the data and the different departments of Colombia at the level of the three areas considered, which may be of interest in decision-making processes by the Ministry of Education. In addition, the research allowed to verify the usefulness of the GeoDa tool for conducting studies based on exploratory and spatial analysis in different application contexts.

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Equidad territorial en Medellín: espacio público, amenazas naturales y calidad del aire

Cited by 5 publications

References 4 publications

Accessibility to public spaces: Boosting ecosystem services in urban areas in four Latin American cities

Accessibility to public spaces: Boosting ecosystem services in urban areas in four Latin American cities

Espacio público efectivo en Manizales y Medellín, Colombia: evaluación cuantitativa de su generación y distribución en dos momentos normativos

Application of Spatial Data Science on Results of the Saber 5 Test

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