Los espacios mineros decimonónicos y de principios del siglo XX, poseen cada vez mayor reconocimiento entre planificadores, como una particular forma de patrimonio. Sus impulsores señalan la importancia de los vestigios mineros como testimonios de la revolución industrial, y su significancia para la identidad local. De igual modo, han promovido su reutilización para el turismo cultural. Por otra parte, previo a su reutilización, diversos riesgos ambientales presentes en estos territorios deben ser considerados. A partir del ex poblado carbonífero de Lota, el artículo identifica los principales elementos del patrimonio minero y los riesgos ambientales asociados. Los resultados permiten constatar la profunda vinculación existente entre las áreas de mayor valor patrimonial y las de riesgo ambiental y, por lo tanto, la necesidad de un abordaje integrado de los objetivos de puesta en valor y los de remediación. Todo lo anterior, como requisito para una reutilización sostenible del espacio minero en la fase postextractiva.

A partir de la década de los noventa, principalmente en Europa y Estados Unidos, surge desde el ámbito de la planificación urbana un creciente interés por la reutilización del patrimonio minero para usos culturales y turísticos. Quienes promueven este tipo de actuaciones destacan los aportes de dicho patrimonio a la dinamización de territorios en declive, a partir de la puesta en valor de los vestigios mineros y la introducción de nuevos usos basados en el turismo cultural. Sin embargo, aún existe una brecha en el desarrollo de metodologías capaces de medir la real contribución de este tipo de intervenciones al desarrollo local sustentable. En este contexto, el presente artículo propone una metodología de análisis derivada de la teoría de sistemas, y un sistema de indicadores que integra la perspectiva conservacionista y el desarrollo teórico de la sustentabilidad, y lo aplica al sistema de exasentamientos mineros del golfo de Arauco

Contemporary post-industrial urban areas face opposing transformation trends: on one hand, abandonment or underutilization, and its replacement by new constructions and uses, on the other hand, the revaluation of the historical fabric and the implementation of initiatives to rehabilitate this legacy as industrial heritage. This study aimed to understand the factors that influence trends, and simulate land-use scenarios. A methodology based on three phases is proposed: digitization, exploratory spatial data analysis and simulation. Using the former textile district of Bellavista in Tomé (Chile), this study created and used historical land-use maps from 1970, 1992 and 2019. Meanwhile the main change observed from 1970 to 1992 was a 59.4% reduction in Historical Informal Open Spaces. The major change from 1992 to 2019 was the Historical Informal Open Space loss trend continuing; 65% of the land dedicated to this use changed to new usages. Consequently, the influence of two morphological factors and three urban management instruments on land-use changes between 1992 and 2019 was studied. The projection to 2030 showed a continued trend of expansion of new housing uses over historic urban green spaces and industrial areas on the waterfront, although restrained by the preservation of the central areas of historic housing and the textile factory.

Landscape change is a key variable in place attachment and identity. Moving on from previous studies in the field of landscape and planning research, this paper specifically aims to explore the impact of loss of access to urban green and open space on memories and emotional connections to place. These issues were examined in the context of a former coal mining community with strong social cohesion and local identity in order to analyze the impact of urban transformation on the past and present meanings of place for current inhabitants. Research methods involved a mixture of qualitative tools including focus groups, life narratives, blank mapping research, and cartographic analysis of land use change. Results present powerful evidence of the important detrimental effects that unplanned landscape change can have on everyday access to open spaces, and in consequence, on positive meanings of place. Moreover, these dynamics can deeply affect historical company towns undergoing processes of decay after industrial closure. In this sense, this study can contribute to developing recommendations for current planning practices within the context of heritage management.

In line with UNESCO’s Historic Urban Landscape approach, this study highlights the need for integrative tools that connect heritage conservation with broader urban development dynamics, balancing preservation and growth. While several machine-learning models have been applied to analyse the drivers of urban change, there remains a need for comparative analyses that assess their strengths, limitations, and potential for combined applications tailored to specific contexts. This study aims to compare the predictive accuracy of three land-use change models (Random Forest, Logistic Regression, and Recursive Partitioning Regression Trees) in estimating the probability of land-use transitions, as well as their interpretative capacity to identify the main factors driving these changes. Using data from the Bellavista neighborhood in Tomé, Chile, the models were assessed through prediction and performance metrics, probability maps, and an analysis of key driving factors. The results underscore the potential of integrating predictive (Random Forest) and interpretative (Logistic Regression and Recursive Partitioning Regression Trees) approaches to support heritage planning. Specifically, the research demonstrates how these models can be effectively combined by leveraging their respective strengths: employing Random Forest for spatial simulations, Logistic Regression for identifying associative factors, and Recursive Partitioning Regression Trees for generating intuitive decision rules. Overall, the study shows that land-use change models constitute valuable tools for managing urban transformation in heritage urban areas of intermediate cities.

La importancia de los mercados ha estado tradicionalmente ligada a su papel como abastecedor urbano de alimentos frescos. Sin embargo, a partir de la segunda mitad del siglo XX muchos de estos espacios han perdido este valor simbólico y han entrado en un proceso de obsolescencia multidimensional. Se propone aquí analizar, como ejemplo de este proceso de declive, el caso del Mercado Central de Concepción (Chile), utilizando como enfoque metodológico el de hábitat sustentable. Desde esta perspectiva, se examina el funcionamiento del mercado como ámbito edificado y como espacio socioeconómico, tanto a escala arquitectónica, como de su entorno urbano. La metodología aplicada consideró el análisis planimétrico, la observación en terreno y las entrevistas, para identificar los factores que han incidido en la insostenibilidad de este mercado histórico. Los resultados sugieren que diversos factores sociales y económicos vinculados al edificio en sí, tanto como a su contexto urbano, permitieron o incluso contribuyeron a la pérdida de cualidades claves para la sostenibilidad del hábitat del mercado. The history of the markets halls has always been linked to its role as a provider of fresh urban food. However, during the second part of the twentieth century, these commercial spaces have ceased to possess this symbolic value globally, entering a process of multidimensional obsolescence. It is proposed to analyze the historical process of the Central Market of Concepción (Chile) through the concept of sustainable habitat, in order to analyze the operation of the market as a built environment and as a socio-economic space both at the building and urban level, with the objective of visualizing the causes of the loss of the sustainable habitat of this historical market. The results show that the neoliberal policies of the 1980s broke the symbiotic relationship that the built, intangible and living heritage of the market maintained with its environment. And that the recovery of this building requires integrated planning of the architectural heritage, the urban environment and that has the tenants who gave life to the market for 70 years.