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Mapping the Pulse: Heterogeneous Impacts of Human-Scale Street Design on Urban Vibrancy in Four Chinese Metropolises

Urban vibrancy emerges from the complex interplay between individuals and public spaces. Recognizing the importance of capturing people’s experience and perception of streetscape and network configurations, this study investigates the relationship between human-scale street design and urban vibrancy in four Chinese metropolises: Nanjing, Wuhan, Xi’an, and Shenyang. Using a bottom-up metric framework with street view images and spatial design network analysis, this study assesses human-scale street design across five dimensions: reachability, betweenness, detours, aesthetics, and disorder. Multiscale geographically weighted regression is employed to examine how these design metrics spatially affect urban vibrancy during daytime and nighttime. The findings reveal the efficacy of enhancing street closeness and optimizing green spaces in promoting urban vibrancy. It further identifies mitigating strategies for reversing declines in urban vibrancy, such as addressing physical disorder and reducing street network severance. Additional analysis using a geographical detector explores the interactive effects of these elements, emphasizing the necessity of a comprehensive approach to urban planning. The comparative analysis across multiple cities amplifies the generalizability of the findings, offering actionable insights for adaptable, vibrancy-oriented urban planning.

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Finding Symptoms of (Under)Privileged Urban Nature in a Socialist City: The Case of Pyongyang, North Korea

North Korean media refer to Pyongyang, the capital of North Korea, as a “city in a park,” and urban researchers explore the potential for Pyongyang to become a sustainable city. Given North Korean media’s function as a propaganda organization supporting the Kim Jong-un regime and consistently producing positive content about the regime, we can employ alternative and more objective methods to assess Pyongyang’s sustainability. This article seeks to find unsustainable aspects of Pyongyang by analyzing satellite images while maintaining distance from North Korean media, which monopolizes the production of knowledge that defines Pyongyang as a green and sustainable city. In the socialist city of Pyongyang, there are politically, economically, and socially privileged areas, even if they are not as clearly evident as in capitalist cities. These areas exhibit privileged urban nature, as evidenced by a less polluted and higher quality natural environment. Specifically, I estimate hybrid spaces where the line between privileged and underprivileged blurs. Although they belong to relatively privileged areas, residents take certain risks, referred to as an (under)privileged urban nature. These (under)privileged urban natures could crack the dominant discourse on seeing Pyongyang as a sustainable city.

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What Attracts Green: Value Differentiation of Environmental Industry and Coagglomeration with Pollution-Intensive Industries in China

Scholars have spent decades studying how environmental (“green”) industry can promote sustainability. Few studies, however, have discussed corporate dynamics within green industry and their spatial interactions with other manufacturing and service industries. Drawing on the theoretical perspective of industrial value chain differentiation, this study unpacks the spatiotemporal dynamics of environmental enterprises by various types in China. We use the Wasserstein coagglomeration index and Poisson regression to identify the spatial coagglomeration of green and pollution-intensive (“brown”) industries. The results show that (1) China’s environmental industry is still in the early and middle stages of development with low and medium added value as the core; (2) green enterprises are mainly distributed in the eastern coastal areas and a few inland provinces with developed infrastructure; and (3) the entry and spatial distribution of equipment and engineering enterprises are highly correlated with local brown industries, whereas high-end service enterprises tend to concentrate in economically developed urban agglomerations. This research hopes to reveal the spatial characteristics of environmental industry in the regional green transition through the decomposition of its value chain and the analysis of the spatial coagglomeration effect.

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Evaluation of GIScience Exercise Using Online Educational Materials for Japanese University Students

GIScience is essential to geography education. Different curriculums and textbooks have been developed to teach GIScience in classrooms through lectures and exercises corresponding to the educational situation of each country. We developed e-learning materials based on existing research outcomes for GIScience education in Japan, such as the Japanese GIS core curriculum for university education. Using the materials, we held a three-day intensive GIScience class at the University of Tokyo from 2018 to 2022 with questionnaire surveys to investigate the educational effects of the materials and factors influencing GIScience learning. The attending students browsed the materials and studied GIScience by themselves but asked questions of teachers if necessary. The questionnaire survey results indicate that most students felt geospatial data processing is somewhat complex, but they were satisfied with the opportunity of GIScience learning. Whether the students thought the exercise was simple and easy depended on their confidence in computer knowledge and operation and their preferred learning style at their own pace. The students’ satisfaction level and ease in using the material correlate with their motivation level, the number of questions they asked the others, and their preferred style for learning at their own pace.

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