Search Results (36)

This study focuses on downtown Beijing to explore the spatial distribution characteristics of emotions and their influencing factors from the perspective of landscape ecology. The research reveals significant spatial agglomeration in the distribution of emotions, with hot spots primarily concentrated around parks, commercial centers, and areas surrounding social service facilities, such as schools and hospitals. By contrast, historical sites and museums are mostly cold spots for emotions. An analysis of various landscape pattern indices shows that indices such as the spatially explicit index of evenness (SIEI), the largest patch index (LPI), the number of patches (NP), and the Shannon–Wiener diversity index (SIDI) are positively correlated with residents’ emotions. This suggests that evenly distributed landscape elements, large natural patches, a rich variety of landscape types, and high landscape diversity can effectively enhance residents’ emotional well-being. Conversely, complex landscape shape indices and high aggregation indices may negatively impact emotions. Based on these findings, it is recommended that urban planning optimize the urban green space system, increase the area and number of natural patches, pay attention to the diversity of landscape design, simplify the shape of the landscape, and reasonably control the aggregation of the landscape to create a more emotionally caring urban space. Full article

The downtown area of the city of Coimbra, Portugal, is at low altitude and has historically suffered floods that have caused serious economic losses. The present research proposes a mobile augmented reality (MAR) application aimed at visualising the effect of possible scenarios of flooding in an area of higher risk in the city. A realistic 3D model of the city was created, using data extracted with BLosm and processed through Blender, followed by its integration into Unity with Vuforia for AR visualisation. The methodology encompasses the extraction and simplification of 3D models, mapping real-world coordinates in Unity, analysing several datasets, obtaining a model through regression and implementing a workflow to manage interactions between various Unity objects. The MAR application enables users to visualise potential flood impacts on buildings, utilising colour-coded indicators to represent different levels of water contact. The system’s efficacy was evaluated by simulating various use-case scenarios, demonstrating the application’s capability to provide real-time, interactive flood risk assessments. The results underline the potential of integrating AR and machine learning for enhancing urban flood management and prevention. Full article

The frequency of urban fires has grown in recent years everywhere, especially in historic districts, including in Portugal, due to the existence of sensitive igniting materials, the proximity of buildings, the complex urban layout, and the presence of many people. The current study proposes a technique, applied in the Baixa Pombalina (downtown) area in Lisbon, to undertake an appropriate evaluation of the post-earthquake fire cascading effect, which may cause major damage. The earthquake vulnerability and damage scenario were carried out using the Risk-UE method. An empirical fire ignition model was then applied to determine the quantity and location of fire ignitions for different return periods. Furthermore, the simple fire spread Hamada’s model was applied to both the equally spaced grid buildings, as in the original Hamada procedure, and the current study area layout for different time thresholds. Finally, the risk assessment for both models was carried out, allowing for the estimation of earthquake and fire losses, respectively. The results demonstrated that the models are comparable, showing that the Hamada model might be a useful tool for large-scale evaluations aimed at disaster-risk reduction and management since it gives useful information for managing and reducing natural and anthropogenic hazards. Full article

This paper presents the results of theoretical and applied research that employs methodological experimentation in a project for the protection and integrated transformation of the downtown area of the city of Sharjah in the United Arab Emirates. The particular nature of this case relates to two factors: (a) strategies and policies to protect and enhance the cultural heritage as a driver for tourism and the cultural development of the entire Emirate, from archaeological goods to the urban fabrics in historical centres (Sharjah and Korfakkhan), in contrast to the surrounding Emirates; and (b) the client’s request to define guidelines to manage the urban cultural heritage during a time of transition while awaiting the results of UNESCO candidacy. This unique fact denotes a sensitivity and long-term policies regarding the cultural heritage which views the recovery of the urban historical heritage, assuming the cultural component as the fourth dimension of sustainability. The methodological approach, the results of the research, and design are organized on the dual urban and building scale to understand the structure and elements of the historical centre. The actions and interventions are differentiated with respect to urban fabric, building, archaeological good, and landscape, and translate the strategies of the guidelines into short-/mid-/long-term design actions. Full article

This article positions queer nightlife as a central vehicle in the lives and practices of queer Latinx artists working in Los Angeles over the past decade. It highlights how queer nightlife has provided a generative space for art making and community building in LA and considers how the usage of queer nightlife as a frame of study ruptures existing art historical and curatorial methodologies relative to Latinx art. I closely analyze works by artists rafa esparza, Sebastian Hernandez, and Gabriela Ruiz drawn from the gay bars and streets of downtown and East Los Angeles to underscore the radical and sophisticated ways by which these artists create art, community, and opportunity. By critically examining three case studies—Escandalos Angeles (2018), a performance by Hernandez and Ruiz at Club Chico in Montebello, California; Nostra Fiesta (2019), a storefront mural by esparza, Ruiz, and friends at the New Jalisco Bar in downtown; and YOU (2019–ongoing), a queer party directed by Hernandez and launched at La Cita Bar in downtown—I reveal how queer nightlife has served as an incubator for these artists to come together, express themselves, and generate a sense of joy and freedom from the struggles of everyday life. Full article

Interreligious engagement (IE) has been experienced and theorized mainly as the pursuit of a shared respectful awareness of the beliefs, practices, and social experiences of multiple religious communities. In rare instances, it has been possible to create architecture specifically to foster IE, as in the “tri-faith” Abrahamic campus in Omaha and the Berlin House of One. The theme is: Here we are, accepting that we share the world. Another form of IE that deserves to attract more interest is multireligious collaboration in civic work (addressing homelessness, urban blight, illiteracy, etc.). Some adherents of the intrinsically cosmopolitan “world” religions are actively cosmopolitan to the extent of seeking this engagement. The theme is: Let us share the work of the world, including sharing our religiously inflected processing of what the practical issues facing us are. There is a new initiative of this sort in my city, Jackson, Mississippi, named (from M. L. King) the “Beloved Community”. An architectural thought experiment may prove helpful in articulating the ideals for such an endeavor. What would be the physical desiderata for its headquarters? Let us imagine a new downtown building, The Meeting, dedicated to housing meetings where mixed religious groups learn about civic issues and coordinate efforts to address them. Full interreligious sharing of a space seems to require a neutral design lacking any definite religious inspiration. But there are nonsectarian ways to create an appreciably special, non-ordinary space, as in courtrooms and classrooms. Could a civic IE headquarters be special, expressive of practical optimism, and contain a sufficient religious allusion to qualify as a “next-to-sacred space” in which religious actors felt supported in the civic extension of their religious lives? I offer suggestions for discussion, including (1) a pavilion-style building suggestive of being set up for a special purpose—not soaringly grandiose but with a vertical feature such as a central roof lantern; (2) at least one major porch, with benches and tables; (3) an outside water fountain with public water supply (a historical allusion to the Islamic sabil); (4) inside, right-sized meeting rooms around the glass-walled periphery; (5) a big “living room” lounge in the center, usable for larger meetings, with access to a kitchen, and with a big project board for tracking work completed and work in hand next to a large map of the city; (6) a moderate descent of several steps into each meeting room so that there is a feeling of commitment in attending a meeting and a sense of challenge in going forth from one; (7) otherwise a main floor levelness and openness facilitating movement in and out, as in a train station; and (8) upstairs small offices for religious and other qualifying organizations. Answering the aesthetic and practical questions these suggestions raise takes us into imagining civic IE more concretely. Full article

A temporary monitoring system was installed on the 175-year-old historical Széchenyi Chain Bridge during its reconstruction. The bridge is in the downtown area in the capital city of Hungary and plays a significant role in the city life of Budapest. Six-month-long measurements were conducted during the reconstruction process of the bridge, yielding crucial insights into the structural behaviour of the historical structure. The measurement results were evaluated; the findings encompass the rotation capacity of the pins between the chain elements and the structural response to temperature changes. This information helped the decision-making between 2021 and 2023 by the designers and construction company during the reconstruction. For instance, daily temperature fluctuations resulted in increased bending moments in the chain elements, rising up to 158% compared to the values observed during a proof load test in 2018. Furthermore, the measurements reveal an approximate 42% increase in normal forces compared to the proof load test, which highlights the high sensitivity of chain bridges to temperature fluctuations, where geometric stiffness plays a crucial role. Reconstruction, namely reducing self-weight, notably intensifies the impact on normal forces and bending moments. These outcomes strongly emphasize the dominance of the dead load and self-weight in the case of chain bridges. Full article

Our study explores the question: what kind of landscape situations emerge between the urban fabric and a school building as a result of 21st-century suburbanisation? To answer this question, we will compare a traditional school town and a suburban settlement. Located less than thirty kilometres from Budapest, the traditional town is Vác, one of the most important historical school towns in Hungary. Dunakeszi, on the other hand, directly borders the capital and was a rural settlement at the beginning of the 20th century. This settlement is a typical example of urban sprawl. Its schools have occupied a place in the urban fabric since the second half of the 20th century. During our research, we used thick description and thoroughly analysed where the buildings are situated within the given urban structure, how their appearance can be described, and what their architecture communicates. Our basic argument is that while traditional settlement schools are a central element of the urban fabric, in the suburbs, schools occupy empty spaces of ‘leftover plots’ or develop new campuses in the interurban landscape. The results showed that regardless of the historical past of a given settlement, 21st-century educational institutions create separated, closed campuses in areas affected by suburbanisation processes. The primary reason for moving out is simply a lack of space in downtown areas, which is universally apparent in larger cities. The various roles and tasks schools fulfil also contribute to the process, for example the integration of sports fields or the increasing expectation to be accessible by car. Full article

Old urban reform usually reactivates the urban fabric in a new era of sustainable development. However, what remains of the former fabric and how it interacts with the new one often inspires curiosity. How the old residents adapt their lives to the new layout should be explored qualitatively and quantitatively. This research aimed to assess the old and new fabrics in the downtown area of Keelung, Taiwan, by considering the interactions between truncated layout, proportion, and infill orientation in the mature and immature interfaces. According to the historical reform map made in 1907, the newly constructed area occupied the old constructed area in seven downtown blocks. On average, the area composed of new buildings ranged from 135.60% to 239.20% of the old area, and the average volume of the buildings reached a maximum of 41.72 m when compared to the old buildings in place prior to the reform. It seems that the new fabric purposefully maintained the old temples at the centers of the blocks. However, the old alleys, which still remain within these blocks, have been significantly overloaded with services and have become auxiliary utility spaces for the in-block residences. With regard to the part of the fabric that was truncated or reoriented by new streets, the modification could also be easily found on the second skin. A physical model analysis used a UAV 3D cloud model and QGIS^® to verify the axes, hierarchies, entrances, open spaces, and corners in the commission store block and temple blocks. We found that the 3D point model and historical maps presented a convincing explanation of the evolved fabric from the past to the present. The stepwise segmentation visualizes the enclosed block inside a block on the historical maps and according to the present sections. We found that new roles for old alleys have evolved behind the new fabric. Full article

Introduction: Increases in industrialization and manufacturing have led to worsening pollution in some components of air quality. In addition, gentrification is occurring in large cities throughout the world. As these socioeconomic and demographic changes occur, there have been no studies examining the association of gentrification with air quality. To investigate this association, we studied the trends of gentrification, changes in racial distribution and changes in air quality in each zip code of a large urban county over a 40-year period. Methods: We conducted a retrospective longitudinal study over 40 years in Wayne County, Michigan using socioeconomic and demographic data from the National Historical Geographic Information System (NHGIS) and air quality data from the United States Environmental Protection Agency (EPA). To assess gentrification, longitudinal analyses were performed to examine median household income, percentage with a college education, median housing value, median gross rent and employment level. The racial distribution was evaluated in each zip code during the time period. Gentrification was studied in relation to air quality using nonparametric 2-sample Wilcon–Mann–Whitney tests and Binomial Generalized Linear Regression models. Results: Although air quality improved overall over the 40-year period, there was a lesser rate of improvement in gentrified areas. Furthermore, gentrification was strongly associated with racial distribution. The most substantial gentrification occurred from 2010 to 2020, in which a specific cluster of adjacent zip codes in downtown Detroit experienced intense gentrification and a drop in the percentage of African-American residents. Conclusions: Gentrified areas seem to have a less pronounced improvement in air quality over time. This reduction in air quality improvement is likely associated with demolitions and the construction of new buildings, such as sporting arenas and accompanying traffic density. Gentrification is also strongly associated with an increase in non-minority residents in an area. Although previous definitions of gentrification in the literature have not included racial distribution, we suggest that future definitions should include this metric given the strong association. Minority residents who are displaced as a result of gentrification do not experience the improvements in housing quality, accessibility to healthy foods and other associations of gentrification. Full article

The distribution of mounds, plazas, and defensive palisades associated with Cahokia Mounds State Historic Site (CMSHS) defines the core urban environment of Eastern North America’s first American Indian city. The large mounds surrounding Cahokia’s centrally located Grand Plaza, including the palisades that enclose them, are referred to as Downtown Cahokia. In this portion of the site, archaeologists have identified material culture (e.g., ceramics), earthen fills to level the plaza, and several earthen mound constructions. These findings suggest an occupational history for the area that occurred over the 9th–14th centuries CE, with the emergence of plaza delineation and earthwork construction beginning in the early 11th century CE. In sum, Downtown Cahokia and its Grand Plaza are considered by archaeologists to be a vibrant space characterized by ongoing American Indian transformations to an early metropolitan landscape. We conducted magnetometer and electromagnetic induction surveys at the western edge of the Grand Plaza. When compared with the LiDAR-derived visualizations we generated from this portion of the site, our aerial and terrestrial remote sensing data offered new information on the nature and sequence of monument construction in Downtown Cahokia, as well as architectural changes in domestic and special-use structures. These multi-scalar and complementary remote sensing datasets allowed us, without excavating, to trace important sequences of change in Downtown Cahokia’s history. Full article

The concepts of resistance to unforeseen disasters and rapid post-disaster recovery of historic cities are necessary due to the earthquakes that have profoundly influenced their evolution. The improvement of this property strongly depends on the effectiveness of the preventive tools. In this work, an operational framework for the resilience assessment of a historical city characterized by high cultural and historical elements is developed, which corresponds to the main contribution of this research. The research includes multicriteria analysis based on the in-depth knowledge of the city’s historical development, the study of the effects of past earthquakes, structural vulnerability analysis of pombalino buildings, architectural types and socio-economic aspects. The aim is to obtain the necessary elements to guide an aware plan for improving resilience and the reduction of vulnerability through a GIS tool aimed at preventing and defining urban intervention priorities. The framework proposed is applied to Lisbon downtown. Full article

Sustainable energy strategies have been a critical subject for sustainable development, especially in cities. Citizens, as an integral part of the urban environment, play a significant role in urban spaces, as does their health. An accurate understanding of citizens’ mental, social, and physical health in urban settings is required to design and plan better cities. This study aims to assess the level of alignment with health factors in Mahabad, a major medium-sized city in Iran. Previous studies indicate that the built environment can influence health dimensions. Health factors depend to a great extent on how well the environment is formed and how it is put together. This research is a descriptive, analytical, cross-sectional study that analyzes the environment’s psychological elements and physical and mental health factors of Mahabad’s citizens. According to the Cochran model, 384 questionnaires were distributed among households. For data analysis, SPSS 12 and Arc GIS software were used. The main results of this research show that five factors, “Environmental quality”, “Identity and social relationships”, and “Readability”, have the most impact on the physical and mental health of citizens (respondents). These issues are much more pronounced in the downtown neighborhoods. This study showed that urban experts can understand different levels of public health by knowing the historical, social, cultural, and economic factors and characteristics. The result will help decision makers, city authorities, designers, and urban planners to be more informed about citizens’ health and the ways to improve it. Full article

In order to realize the reproduction and simulation of urban rainstorm and waterlogging scenarios with complex underlying surfaces, based on the 1D–2D coupled models, we constructed an urban storm–flood coupling model considering one-dimensional river channels, two-dimensional ground and underground pipe networks. Luoyang City, located in the western part of Henan Province, China was used as a pilot to realize the construction of a one-dimensional and two-dimensional coupled urban flood model and flood simulation. The coupled model was calibrated and verified by the submerged water depths of 16 survey points in two historical storms flood events. The average relative error of the calibration simulated water depth was 22.65%, and the average absolute error was 13.93 cm; the average relative error of the verified simulated water depth was 15.27%, the average absolute error was 7.54 cm, and the simulation result was good. Finally, 28 rains with different return periods and different durations were designed to simulate and analyze the rainstorm inundation in the downtown area of Luoyang. The result shows that the R² of rainfall and urban rainstorm inundation is 0.8776, and the R² of rainfall duration and urban rainstorm inundation is 0.8141. The study results have important practical significance for urban flood prevention, disaster reduction and traffic emergency management. Full article

This study aimed to reveal changes in urban forms by analyzing the modern and contemporary development history of Gangneung City, one of the major cities in the Yeongdong county of Gangwon-do, South Korea; it has been a central city in the Yeongdong area since the Japanese colonial period. The study’s scope and analysis focused on a space centered in the old downtown area of Gangneung City. The time span under review was divided into three periods in terms of spatial politics. The original cadastral map, a contemporary cadastral map, and photographic data were analyzed, including the use of Geographic Information System (GIS) Programs, for characteristics corresponding to each period. A field investigation and interviews with residents were also conducted. The results confirmed changes in the spatial environment centered on roads, blocks, plots, and architecture that have historical significance. In particular, the study verified the characteristics of the physical environment of the original downtown area centered on Yonggang-dong, Myeongju-dong, and Seongnae-dong and changes in the form of Lake Gyeongpo. Finally, the study presents the implications of these changes by comprehensively summarizing the history of the modern and contemporary development of Gangneung City through changes in the surrounding area. Full article