Browsing by Author "Orellana Vintimilla, Daniel Augusto"

Now showing 1 - 20 of 51

13 herramientas para el análisis y diseño participativo de espacios públicos
(Universidad de Cuenca, 2022) Carrión Astudillo, Joseline Gabriela; Orellana Vintimilla, Daniel Augusto; Acurio Vintimilla, Maria Emilia; Méndez Abad, Xavier Rene; Pozo Urquizo, Ricardo Alberto; Chunga De la torre, Felix Eduardo; Schoonjans, Yves
A Software Architecture Proposal for a Data Platform on Active Mobility and Urban Environment
(Springer Science and Business Media Deutschland GmbH, 2020) Quinde, Christian; Guillermo, David; Sigüenza Guzmán, Lorena Catalina; Orellana Vintimilla, Daniel Augusto; Pesántez Cabrera, Paola Gabriela
Over time Geographic Information Systems (GIS) have evolved from monolithic software to dynamic platforms interacting with other systems. Consequently, characteristics such as availability, scalability, interoperability, and failure handling have become essential. Due to the vast diversity of applications and user levels, and the growing complexity of data types and models handling geospatial data, information management has developed into a complex, often overlooked task, leading to delayed results and/or disorganization of information. The goal of this paper is to propose a software architecture design to support mobility data collection, analysis, and visualization. The proposal is based on the process for software architectures stated by Bredemeyer Consulting, comprising five stages: commit, requirements, design, validation, and deployment. Likewise, the Attribute Driven Design (ADD) method has been used for the design stage where the selected architectural pattern was Service Oriented Architecture (SOA) since it provides the scalability and interoperability attributes required for this study. The Architecture Tradeoff Analysis Method (ATAM) has been chosen to identify the risks of the proposal and to evaluate the architecture to ensure that all requirements have been satisfactorily met. The model was validated using the data and projects of the LlactaLAB research group.
Análisis de cambios de cobertura del suelo mediante imágenes Sentinel-2 y Landsat-8 en la subcuenca del río Burgay
(Universidad de Cuenca, 2024-06-06) Murillo Patiño, María Augusta; Obando Loja, María Camila; Orellana Vintimilla, Daniel Augusto
The analysis of images captured by satellites has demonstrated their importance in the identification and monitoring of the peculiarities of the earth's surface. These studies make it possible to detect alterations over time. Our research focused on analyzing the evolution of land cover in the Burgay River sub-basin, using images from Landsat-8 OLI and Copernicus S2 Sentinel-2 MSI satellites, available at the United States Geological Survey (USGS) library. The methodology included coding in the Google Earth Engine platform and use of the Random Forest supervised classifier algorithm. Land cover maps for three time periods (2016, 2018, and 2020) were produced independently for each satellite. The accuracy of the classifications was high, reaching 95.33% (2016), 96.75% (2018), and 98.62% (2020) for Landsat-8, and 99.28% (2016), 93.65% (2018) and 98.63% (2020) for Sentinel-2. The results highlight the importance of spatial resolution in land cover identification, with a difference in change of 6.37% (2016-2020) for Landsat-8 (resolution: 30 m) and 8.97% (2016-2020) for Sentinel-2 (resolution: 10 m) .These results not only indicate land cover change and persistence, they also demonstrate the advantages and limitations of using Google Earth Engine and the public archive database in its platform to track and monitor these transitions over time.
Análisis de viajes con la aplicación de teléfonos inteligentes
(2016) Avilés Ordóñez, Juan Marcelo; Orellana Vintimilla, Daniel Augusto
Abstract: Previous research has developed several promising models for digital data capture mobility, which can be applied in urban planning, transportation and land use planning models. Therefore the aim of this work is to develop a methodology to produce information mobility on Origin-Destination (OD) and travel time matrices, identification of travel modes, points of interest (POIs) and frequent routes through the development and implementation of an application for Android mobile devices. Methodology: There was an application for mobile devices with Android operating system, based on existing models. This application obtained mobility data from sensors embedded in mobile location (GPS). Data was subsequent migration to a cloud database. Post process analysis was conducted with tools such as KNIME, Python and QuantumGIS. The application was tested by 68 students volunteer from the University of Cuenca, for 14 days in January 2016. Results: We obtained data from 44 volunteers for create OD matrices and travel times matrices for different periods of the day. These matrices helped to identify variations of interaction between areas, number and time of travel. They were identified modes of transport such as cycling and motorized. POIs House (91%), Work (74%) and intermediate stops (20% of total POIs) were detected. A mobility atypical behaviors were observed. Finally the compared of routes frequented vs theoretical optimal routes finding that 63.6% of users agreed with total of travel of the latter. Conclusions: The proposed method of analysis and recollection of data presents consistent with previous studies showing comparable levels of confidence. The biggest challenge is the massive deployment model for the collection of useful data mobility plans.
Análisis exploratorio de comportamientos de ciclistas voluntarios mediante minería de patrones espacio-temporales en Cuenca, Ecuador.
(2018) Abad Crespo, Lorena Cristina; Orellana Vintimilla, Daniel Augusto
ata mining techniques combined with space-time cubes empower the analysis of multidimensional data. A study area in which these advanced analysis techniques can be applied pre-eminently is urban mobility, where investigation of non-motorized mobility patterns is a main priority for several cities around the world. The presented work aimed to extract spatio-temporal patterns from a human movement database containing volunteer-generated cycling data in Cuenca (Ecuador) with the objective to detect places and times where strategies can be applied that promote urban cycling. The methodology takes advantage of the capabilities of the space-time pattern mining toolbox in ArcGIS. The results demonstrate the viability of the proposed methodology for the characterization of non-motorized mobility patterns and its potential for analyzing other mobility datasets.
Analysis of the influence of urban built environment on pedestrian flow in an intermediate-sized city in the Andes of Ecuador
(2019) Hermida, Carla; Cordero, Manuela; Orellana Vintimilla, Daniel Augusto
This study explores the potential influence of the urban built environment on pedestrian flow in an intermediate Latin American city, Cuenca-Ecuador. Data from samples of 48 street segments were analyzed to explore how physical and spatial features of streets and sidewalks, as well as land use and occupation conditions influence the number of pedestrians. A quantitative approach was used to model the individual and combined influences of several variables on pedestrian counts using multiple regression models. Results from statistical modeling indicate that variables related to the physical features of the streets, such as sidewalk width, are positively correlated to pedestrian counts, whereas parking space and front setback are negatively correlated. We conclude that streets in our study area are largely inadequate for pedestrians due to their poor design, scarce walking infrastructure, and the prevalence of all sorts of obstacles on the sidewalks. Pedestrians, however, seem to cope with this adve...
Assessment of microscale economic flood losses in urban and agricultural areas: case study of the Santa Bárbara River, Ecuador
(2020) Pinos Flores, Juan Andrés; Orellana Vintimilla, Daniel Augusto; Timbe Castro, Luis Manuel
To reduce and prevent significant economic flood losses, reliable tools are required to estimate potential river inundation effects. This paper focuses on the estimation of direct damages caused by flooding with different return periods in urban and agricultural areas. A univariable deterministic flood loss model was developed to estimate potential damages, based on water depth. This approach involved assessing the mapping of local flood risks based on the combination of historical inundation marks, land-use and economic data. The primary objective of this study is to determine whether it is possible to use accessible data at the municipality level to assess economic flood losses. For the Santa Bárbara River case study, the results reveal that the greatest proportion of damages (approximately 99%) is expected to occur in the urban area. In addition, results showed that the approach is useful for identifying and mapping flooded areas with critical damage. The proposed methodology can be applied to microscale analysis, thereby providing quantitative results for flood risk assessment, the outcomes of which could assist local decision-makers in the prioritization of critical risk areas, and the development of mitigation options and countermeasures. As such, this is the first study to propose and provide an open-access methodology for quantifying flood losses in the inter-Andean region of Ecuador.
Avances en el conocimiento de la relación entre la movilidad activa a la escuela y el entorno urbano
(2021) Hermida, Carla Marcela
Active mobility for school-age children has been demonstrated to be critical to health, social relationships, and academic performance. That is why it is worrying that active mobility to schools has decreased in recent decades. Despite the growing interest in promoting school mobility on foot and by bicycle, the scientific evidence is scattered and poorly structured, making it difficult to make good decisions. This article aims to contribute to the systematization of knowledge about active school mobility through a review of scientific literature of the years 2009-2019, included in the bibliographic database Scopus. Parents make decisions about mobility mainly by parents, who see insecurity and road safety as barriers to active mobility. Factors related to the built environment, the socio-demographic conditions of the neighborhoods, the distance, the climate, and the convenience of the parents also have an influence. The literature review has also evidenced the concentration of studies in developed countries and the developing research on the subject in developing countries.
Cerca o lejos? Discursos y subjetividad en las relaciones entre el lugar de residencia y la movilidad
(2022) Hermida Palacios, María Augusta; Orellana Vintimilla, Daniel Augusto
The relationship between urban form and transport has been an important research topic in recent decades. However, the relationship between preferences of location and typology of residence and transportation modes has not been sufficiently studied in Latin America, despite being a determining factor of urban expansion patterns. In the present work, we investigate this relationship in the city of Cuenca (Ecuador) using the Q Methodology, a set of quantitative-qualitative techniques for the systematic analysis of subjectivity. We detected three predominant discourses characterising different perspectives: a) oriented to active mobility, b) oriented to public transport, and c) oriented to exclusivity and self-segregation. We expect that the present and further studies will contribute and inform public policies which address the diversity of perspectives of the population and enhance proximity relationships
La ciudad es esto: medición y representación espacial para ciudades compactas y sustentables
(Universidad de Cuenca, 2015) Hermida Palacios, María Augusta; Orellana Vintimilla, Daniel Augusto; Cabrera Jara, Natasha Eulalia; Osorio Guerrero, Pablo; Calle Figueroa, Christian
Co-production and Public Space: Perspectives and Experiences from Latin American Informal Neighbourhoods.
(Universidad de Cuenca, 2022) Méndez Abad, Xavier Rene; Orellana Vintimilla, Daniel Augusto; Chunga De la torre, Felix Eduardo; Schoonjans, Yves
The project “Upgrading Informal Settlements by the Coproduction of Inclusive Public Spaces: urban design strategies for sustainable and resilient development in informal neighbourhoods’’ (short name: SURLab) was initiated in 2020 as a collaboration between research groups of the Department of Architecture of the KU Leuven, the Facultad de Arquitectura of Universidad Católica de Santiago de Guayaquil and LlactaLAB Sustainable Cities research group at Universidad de Cuenca. The project tackles the challenge of triggering sustainable and resilient urban development through the participatory design of public spaces in lowincome informal neighbourhoods. Public Spaces in ‘barrios populares’ (Popular neighbourhoods) in the Ecuadorean cities of Guayaquil and Cuenca were seen as representative working cases.
De los datos al conocimiento: aportes de las ciencias de la información geográfica para los estudios de ciudad
(FLACSO Ecuador, 2021) Orellana Vintimilla, Daniel Augusto
Determinación empírica del área de influencia de los espacios públicos abiertos (parques) en una muestra representativa de la ciudad de Cuenca, Ecuador
(Universidad de Cuenca, 2025-02-11) Armijos Jimenez, Jhoan Fabricio; Rodríguez Cárdenas, Naomi Maitee; Orellana Vintimilla, Daniel Augusto
The importance of open public spaces (EPAs), such as parks, squares or riverbanks, are widely recognized for their social, environmental and population health benefits. However, in Cuenca and other cities in the country and the region, the real area of influence of the EPAs and the population served by them is unknown. Traditional methods to estimate the area of influence do not take into account the road network, the available modes of transportation, or the attraction effect. Nor is there data available that indicates the real distance or time that people travel to go to these places. Therefore, this thesis presents a methodology to determine the areas of influence of the EPAs. First, a literature review is carried out to explore different methods applied in other places in the world. Then, surveys are applied to users in a sample of 20 parks in the city of Cuenca, to characterize the accessibility of people to these spaces, using the digital tool KoBo ToolBox. While for geographic analysis, software such as; Exploratory, Excel and QGIS. The motives, reasons, times, modes of transport and distances of park visitors were identified. This research contains comprehensive information on the general area of influence of the EPAs in Cuenca and in detail analyses the parks that are part of the sample for the study. In addition, this thesis offers valuable data collection for future urban planning of the city as well as a global methodology for other types of facilities.
Diseño de trazado y sección de ciclovía, caso de estudio: sector Totoracocha
(2019-07-19) Corral Maldonado, Sebastián Enrique; Orellana Vintimilla, Daniel Augusto
One of the main challenges of intermediate cities in the 21st century is the increase of motorized vehicles and the serious consequences in environmental pollution, health and the number of deaths and injuries due to accidents. Given this, it has been shown that active mobility, mainly by bicycle, is a simple, effective and economic strategy to solve mobility problems and improve the health of people. Cuenca has created an infrastructure for bicycle mobility, however, it has problems with connectivity, location and design, so it is ineffective and risky. The objective of this degree work is to propose guidelines for the design of a bike path on Yanahurco Avenue, as a strategy for the integral improvement of public space. This avenue is an important axis of flow of movement in Totoracocha, east of the city of Cuenca. For the design, local and international design guides and methodologies were searched, adapting them to the local context, applying them in three sections of the avenue. Yanahurco Avenue was evaluated using the “London Cycling Design Standards” methodology, which includes parameters of safety, comfort, adaptability, directness and aesthetics. The rating of the current situation of the avenue was 17/64 and after applying the design guidelines it obtained 53/64. In the proposal, the avenue went from having defective roads, with obstacles and scarce vegetation, to having a sidewalk with a strip of circulation and another with furniture and vegetation. Pedestrian and cyclist crossings are safe and people with reduced mobility can move around unimpeded.
Elaboración de un índice de calidad ambiental ICA, enfocado al sector urbano de la ciudad de Cuenca utilizando teledetección y análisis espacial
(2017) Sánchez Vega, Luis Miguel; Orellana Vintimilla, Daniel Augusto
Environmental quality deterioration is an increasing global problem, especially in cities with high industrial development and demographic growth, demanding the establishment of public policies that confront these issues. Data generation is required to represent the environmental reality of a place, for which environmental quality index can be applied. The current research aims for the construction of Landsat 8 imagery derived indicators along with secondary information of Cuenca for 2014 and 2015. Eight indicators were obtained – normalized difference vegetation index (NDVI), leaf water content index (LWCI), normalized difference soil index (NSI), soil adjust vegetation transformed index (TSAVI), surface temperature (TS), nitrogen dioxide and ozone concentrations, and noise levels – and synthetized in environmental quality indexes adjusted to hexagonal cells, generated with two methodologies: spatial multiple criteria analysis and principal components analysis. This last technic was selected as the most suitable to represent the city, clustering thriving environmental quality in areas with high humidity and vegetation indexes, as well as low surface temperatures, and minor atmospheric pollution; and in degraded regions with heat island effect, high nitrogen dioxide concentrations, bare soil and low humidity, and larger constructed areas, that require priority intervention from the urban environmental planning entities. Key words: Remote sensing, environmental quality index, atmospheric pollutants, multiple criteria analysis, principal components analysis, vegetation index.
Error propagation of digital elevation model obtained by low cost UAVs for flood models
(2018-10-26) Marín Sarmiento, María Augusta; Orellana Vintimilla, Daniel Augusto
River floods represent one of the most important natural hazards in the Andean cities due to their recurrence and economic impacts. Adequate flood risk management requires information on the probability of occurrence and depth of flood for events in different periods of recurrence. The objective of the article is to evaluate the potential use of Digital Elevation Models (DEM) produced with low cost aerial photogrammetry with unmanned aerial vehicles (UAV), using a section of the Santa Bárbara River. For the analysis, a flood scenario with a 50-year return period and two Hec-ras flood models and an agent-based model (ABM) will be used. The main phases are: (i) Geostatistical analysis of the spatial structure of errors. (ii) Generation of two sets of synthetic DEMs using geostatistical simulation. (iii) Simulation with the two flood models using the sets of synthetic DEMs, and (iv) analysis of the propagation of errors. The results indicate that a DEM generated with UAV is useful and a feasible alternative to carry out the simulation of floods due to overflow of rivers due to their detail over time in changes in the area. The ABMs are very useful for the generation of flood scenarios thanks to their possibilities of automation and execution in a short time. In addition, the values of sensitivity and specificity with ABM of the DEM with UAV indicate a high capacity to detect flooded areas and medium - high capacity for safe areas.
Estrategias de mejora del entorno urbano de las paradas de autobús para niñas y niños entre 8 a 12 años en la ciudad de Cuenca, Ecuador
(Universidad de Cuenca, 2025-08-25) Salcedo Estrella, Diana Salomé; Bermeo Castillo, Karla Belén; Orellana Vintimilla, Daniel Augusto
Historically, urban design and planning have prioritized the demands of adults, overlooking the needs of children. This curriculum integration project aims to determine strategies to improve the habitability of public spaces, focusing on safety, comfort, and usability for children aged 8 to 12 in the vicinity of bus stops near educational institutions in Cuenca. The research is exploratory and descriptive in scope, utilizing quantitative and qualitative methods to analyze the physical environment of bus stops and spatial behavior. It also incorporates participatory methods to include the perspectives and needs of the target group in the design strategies. The project begins with an exploratory review of the state of the art concerning habitability and urban design for children, establishing the theoretical framework of the research and identifying relevant case studies. Following this, a field study is presented, conducted at two selected bus stops to determine their conditions and problems. Next, the participatory process with children is detailed, aiming to identify their perspectives and needs. Finally, these results are used to propose design strategies. This work is expected to highlight the importance of considering children as key users of public spaces and contribute to generating strategies for building a more inclusive and equitable city.
Estudio de la influencia de las características urbano-arquitectónicas de los espacios públicos recreativos en los niveles de actividad física de los niños y niñas en la ciudad de Cuenca-Ecuador
(Universidad de Cuenca, 2020-07-08) Cabrera Molina, Ana Valentina; Orellana Vintimilla, Daniel Augusto
In the last four decades worldwide, the level of overweight and obesity in children has increased, which can cause their death. Physical activity is crucial for energy expenditure, but physical inactivity in children has increased in the same way. The public park is a free outdoor space, so it is essential to know your contribution to the community. The current work aims to propose design criteria that promote physical activity equally for girls and boys within these parks. To establish the design criteria, a direct observation protocol was generated, based on the methodology for the Observation of Physical and Recreational Activities in Public Parks (SOPARC). SOPARC is a tool that records the number of children and their levels of physical activity within the areas that make up the public park. This methodology complied with cultural adaptation and field validation through the inter-observer reliability evaluation method, which assesses the ability to provide similar evaluations regardless of the observer who uses it, and thus obtained a methodology for the city of Cuenca-Ecuador.
Estudio de la percepción paisajística de los ciclistas al movilizarse por sus rutas en la ciudad de Cuenca - Ecuador
(2018-04-17) Rodas Correa, María Elisa; Orellana Vintimilla, Daniel Augusto
This research was developed within the framework of the project Pies y Pedales: Study of the mobility patterns of cyclists and pedestrians for sustainable mobility” executed by LlactaLAB-Sustainable Cities and funded by the Research Department of the University of Cuenca DIUC. Studies of alternative mobility in general and bicycle mobility in particular have been generating a new body of knowledge for planning and design of cities that can change trends in the practice of these disciplines. In this context, this research focused on studying the utilitarian mobility in bicycle through the preferences, perceptions and points of view of a group of participants (men and women between 16 and 65 years, with different levels of experience and frequency of use of bicycle). The state of art evidenced few researches that have related the mobility in bicycle and the perception of the environment during this experience. Thus, the methodologies proposed (Method Q, Ethnographic Video and Semi- Structured Interview) allowed us to investigate this experience in a group of 30 participants, finding common and dissimilar points in their assessments. Among the most outstanding results it should be pointed out that the segregation of the road for bicycles and vegetation in its functional, scenic and environmental quality were topics that most influenced the participants. Based on this analysis, it was possible to elaborate reflections and design strategies for the implementation of cycling infrastructure in the different typologies of roads identified in the city of Cuenca.
Estudio del entorno construido alrededor de las escuelas para determinar la caminabilidad de niños en la ciudad de Cuenca - Ecuador
(2018) Andino Espinoza, Ana María; Peralta Torres, Christián Santiago; Orellana Vintimilla, Daniel Augusto
It has been shown that the built environment of cities, particularly the microscale, has influence on the physical activity levels of the population. The literature also states that physical activity practi¬ced from an early age has a favorable impact on people's health. However, nowadays there are no data that facilitate the study of walkability in urban environments, especially in Latin American contexts. That is why this study aimed to adapt an international tool (MAPS), which allowed a precise study of the built environment around 8 schools in Cuenca. A total of 315 segments were analyzed, using three different data collection techniques (in situ and online). Statistical tests among on-site survey techniques, showed good reliability. In addition, the analyzed data recorded the highest walkability that was 30.47%, while the lowest was 11.41% with regard to the maximum possible value; resulting in a general average of 24.07% of walkability for the 8 schools analyzed. The adapted tool demonstrated a high level of reliability, so it can be replicated and used for diffe¬rent studies of urban environments in Latin American contexts. The application of the methodology in the city showed the real level of walkability, demonstrating the need for an intervention that promotes the levels of active transport around the city's schools.