El Quisco is a district and popular seaside resort on the coast of Chile that has suffered the effects of the growing demand for second homes and tourism activities. The district has the fourth highest influx of a floating population in the region, which has had numerous impacts on the district at several levels. The objective of this article is to examine the issue of carrying capacity in Chile and its public management at the local level. To this end, this research developed an exploratory and instrumental case study. Carrying capacity problems were first identified in the existing literature. This information was subsequently complemented with more local information by means of: analysis of territorial planning instruments (TPIs) relating to the district; participative workshops with municipal government stakeholders; and, lastly, confirmation of the problems identified through correlation analysis of available historical data. The main result of this research was the determination of carrying capacity issues in El Quisco. This broadly coincides with indications from the existing literature and TPIs, while factors identified by local stakeholders are territory-specific, giving rise to new measurement variables. It was possible, in turn, to rule out certain carrying capacity issues perceived by the community.

El desarrollo de las herramientas VGA 3D: aplicación en el caso de patrimonio débil en Valparaíso, Chile R. Culagovski 1 , M. Greene 2 and R. Mora 3 ABSTRACTIn the last ten years, isovist analysis has emerged as a fundamental method for reflecting a person's visual experience in cities and buildings. However, until now, most studies have used a two-dimensional planar perspective, neglecting the three-dimensional nature of vision. This paper presents a method to construct 3D isovists that give a more realistic account of a person's visual experience in hilly urban scenarios where a person can see places that are not directly accessible. The paper aims to contribute to the construction of objective methods to represent the environment in a more ecological way.The method was tested in the city of Valparaiso, a heritage city that spreads across thirty hills forming a natural amphitheater and whose charm comes largely from the visual experience that arises from observing distant parts of the city that are not directly accessible. The results show that three-dimensional isovists are capable of capturing the underlying visual properties of ravines and urban viewpoints in Valparaiso.Keywords: 3D Isovist analysis, visual experience, Valparaiso. RESUMENEn los últimos diez años el análisis de campos visuales, también conocido como análisis de isovistas, ha surgido como una herramienta fundamental para representar la experiencia visual de una persona, al moverse en las ciudades y los edificios. Sin embargo, hasta ahora la mayoría de las aproximaciones ocupan un enfoque en el que los campos visuales son mostrados de forma bi-dimensional, soslayando la naturaleza tri-dimensional de la visión. Este escrito, presenta un método para construir isovistas en tres dimensiones; la idea es dar una visión más realista de la experiencia visual de una persona, en entornos urbanos con abruptos cambios de nivel (como las ciudades construidas en colinas, por ejemplo), donde es posible ver lugares difíciles de alcanzar directamente.El método fue probado en la ciudad de Valparaiso: sitio urbano patromonial, caracterizado por disponerse sobre treinta cerros que forman un anfiteatro natural y cuyo encanto reside, en buena medida, por la experiencia visual que emana al mirar la ciudad desde los cerros. Los resultados muestran que las isovistas en tres dimensiones, son capaces de capturar las propiedades visuales subyacentes de las quebradas y los miradores.Palabras clave: isovistas 3D, experiencia visual y Valparaiso.