npj urban sustainability最新文献_第6页

The impact of urban population on housing cost: the case of Australia 城市人口对住房成本的影响：澳大利亚的案例

npj urban sustainability Pub Date : 2023-12-20 DOI: 10.1038/s42949-023-00136-7

Chris Leishman, Weidong Liang, Nicholas Sim

引用次数: 0

Automation and labour market inequalities: a comparison between cities and non-cities 自动化与劳动力市场的不平等：城市与非城市之间的比较

npj urban sustainability Pub Date : 2023-12-05 DOI: 10.1038/s42949-023-00135-8

Roberta Capello, Camilla Lenzi

引用次数: 0

Accessibility inequality across Europe: a comparison of 15-minute pedestrian accessibility in cities with 100,000 or more inhabitants 欧洲各地无障碍环境的不平等：居民人数达到或超过 10 万人的城市 15 分钟行人无障碍环境比较

npj urban sustainability Pub Date : 2023-11-17 DOI: 10.1038/s42949-023-00133-w

David Vale, André Soares Lopes

{"title":"Accessibility inequality across Europe: a comparison of 15-minute pedestrian accessibility in cities with 100,000 or more inhabitants","authors":"David Vale, André Soares Lopes","doi":"10.1038/s42949-023-00133-w","DOIUrl":"10.1038/s42949-023-00133-w","url":null,"abstract":"Active accessibility is a paramount objective of current sustainable urban development policies. Recently, the 15-minute city concept emphasized this framework by stressing proximity as a key urban feature. In this paper, we use two accessibility indicators—cumulative opportunities (total destinations) and Variety (number of different types of opportunities)—to evaluate pedestrian accessibility, using a 15-minute threshold, in a sample of European cities with 100,000 or more inhabitants, and measure within-city and between-city inequality, by calculating pseudo-Gini coefficients. Our results show not only that European cities are not 15-minute cities yet, but also that there is significant inequality within them, although less so in cities with high Variety. Our cross-city comparison found diminishing returns between both total destinations and population density and between Variety and density. Our findings suggest that European cities can increase pedestrian accessibility and reduce internal inequality by increasing the Variety of opportunities accessible by foot, along with improvements to pedestrian infrastructure.","PeriodicalId":74322,"journal":{"name":"npj urban sustainability","volume":" ","pages":"1-13"},"PeriodicalIF":0.0,"publicationDate":"2023-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s42949-023-00133-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138868468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Strategies for mainstreaming nature-based solutions in urban governance capacities in ten European cities 十个欧洲城市将基于自然的解决方案纳入城市治理能力主流的战略

npj urban sustainability Pub Date : 2023-11-08 DOI: 10.1038/s42949-023-00134-9

Katharina Hölscher, Niki Frantzeskaki, Marcus John Collier, Stuart Connop, Esmee D. Kooijman, Marleen Lodder, Siobhan McQuaid, Paula Vandergert, Dimitra Xidous, Lejla Bešlagić, Gillian Dick, Adina Dumitru, Agnieszka Dziubała, Isobel Fletcher, Cristian Garcia-Espina Adank, María González Vázquez, Natalia Madajczyk, Eleni Malekkidou, Maria Mavroudi, Eleftherios Loizou, Agnieszka Osipiuk, Belma Pasic, Antonio Prieto González, Mien Quartier, Selina Schepers, Nermina Suljević, Ivaylo Trendafilov, Katrien Van De Sijpe, Velichka Velikova, Peter Vos

{"title":"Strategies for mainstreaming nature-based solutions in urban governance capacities in ten European cities","authors":"Katharina Hölscher, Niki Frantzeskaki, Marcus John Collier, Stuart Connop, Esmee D. Kooijman, Marleen Lodder, Siobhan McQuaid, Paula Vandergert, Dimitra Xidous, Lejla Bešlagić, Gillian Dick, Adina Dumitru, Agnieszka Dziubała, Isobel Fletcher, Cristian Garcia-Espina Adank, María González Vázquez, Natalia Madajczyk, Eleni Malekkidou, Maria Mavroudi, Eleftherios Loizou, Agnieszka Osipiuk, Belma Pasic, Antonio Prieto González, Mien Quartier, Selina Schepers, Nermina Suljević, Ivaylo Trendafilov, Katrien Van De Sijpe, Velichka Velikova, Peter Vos","doi":"10.1038/s42949-023-00134-9","DOIUrl":"10.1038/s42949-023-00134-9","url":null,"abstract":"This paper explores the institutional mainstreaming of nature-based solutions (NBS) to advance a process-based understanding about how to strategically develop the governance capacities needed for systemic, localised and inclusive NBS. To this end, it reports how policy officers in ten European cities have started to mainstream NBS by interacting with and changing incumbent governance arrangements when experimenting with novel governance processes and mechanisms to plan, deliver and steward NBS. Based on these activities of the policy officers, the analysis identifies three strategies, associated stepping stones and changes in governance conditions, to mainstream NBS in governance capacities: institutionalising (a) a systems’ approach to link NBS to policies, regulations, and departments across goals and sectors, (b) inclusive collaborations for localised and inclusive interventions, and (c) reflexivity and learning about how NBS interact with the (institutional, ecological, social, etc.) contexts and create impacts. The strategies illustrate institutional entrepreneurship in interacting with incumbent governance contexts, and how starting from NBS as a type of systemic innovation can promote broader shifts in urban governance arrangements.","PeriodicalId":74322,"journal":{"name":"npj urban sustainability","volume":" ","pages":"1-11"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s42949-023-00134-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135341893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Projecting spatial interactions between global population and land use changes in the 21st century 预测 21 世纪全球人口与土地利用变化之间的空间相互作用

npj urban sustainability Pub Date : 2023-11-04 DOI: 10.1038/s42949-023-00131-y

Di Yang, Wei-Xin Luan, Xiaoling Zhang

{"title":"Projecting spatial interactions between global population and land use changes in the 21st century","authors":"Di Yang, Wei-Xin Luan, Xiaoling Zhang","doi":"10.1038/s42949-023-00131-y","DOIUrl":"10.1038/s42949-023-00131-y","url":null,"abstract":"Previous research on global urban land expansion has primarily focused on accommodating the growing population without adequately considering the trade-offs between urban land and ecological services. Consequently, it is important to investigate the effect of this expansion on the ecological service system, while also examining the potential trade-offs between population growth and available urban land. Here, we quantify how different global land expansion options contribute to reconciling global population changes and to compliance with the UN Sustainable Development Goal 11 on sustainable cities and human settlements. Using an integrated framework for projecting global land consumption with the trade-off strategy between global land expansion and population under shared socioeconomic pathways (SSPs), we aim to bridge the knowledge gap in this area. The results of our study suggest that implementing a trade-off strategy between global land expansion and population growth can successfully reduce the levels of global land consumption in the future. Under the SSP1 scenario, for instance, our findings indicate that implementing trade-off policies can significantly reduce land consumption while increasing carbon sinks and protecting the global ecological service system. Specifically, converting land to forest or grassland can help decrease land consumption by 8.07% by the end of the 21st century. These insights can be valuable in designing land use policies that incorporate data-based solutions and address the challenges of sustainable urban development while also accommodating population growth.","PeriodicalId":74322,"journal":{"name":"npj urban sustainability","volume":" ","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2023-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s42949-023-00131-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135773572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Urban metabolic flow in China’s megacities doubled by material stock accumulation since the 21st century 21 世纪以来，中国特大城市的城市代谢流量因物质存量积累而翻了一番

npj urban sustainability Pub Date : 2023-10-19 DOI: 10.1038/s42949-023-00132-x

Chenling Fu, Tianjie Deng, Yan Zhang

{"title":"Urban metabolic flow in China’s megacities doubled by material stock accumulation since the 21st century","authors":"Chenling Fu, Tianjie Deng, Yan Zhang","doi":"10.1038/s42949-023-00132-x","DOIUrl":"10.1038/s42949-023-00132-x","url":null,"abstract":"Buildings, infrastructure, and durable goods play a critical role in urbanization, akin to bones and muscles that structure the human body. These stocks contribute to the exploitation of over half of the world’s resources and offer potential “urban mining” sources. However, the process of resource transformation regarding urban material stock growth and material flow alteration remains unclear. The metaphor of urban metabolism provides a new perspective to dissect this process, but current studies often spotlight only specific fragments, such as certain end-use types or materials. This study bridges this gap by establishing a comprehensive level-to-level analysis of urban “bone-muscle” metabolism in China’s megacities. This study presents a comprehensive analysis of urban metabolism in China’s megacities, tracking the lifecycle of material stock across over a hundred distinct end-use types and 12 categories of materials. Results indicate that annual metabolic flow in these cities has doubled since the early 21st century, reaching 264–737 Mt in 2018, with manufacturing, construction, and transportation as primary drivers. As accumulation intensifies, the material stock’s growth rate diminishes logarithmically, hinting at increased efficiency and a move towards a steady state. Concurrently, scrap flow is on the rise. Driven by population growth, per capita scrap is projected to reach 2.0–4.7 t/cap by 2035, and material stock is expected to rise 1.4–2 fold. Proactive population planning and coordinated development strategies can mitigate the risks associated with this growth and maintain urban system stability.","PeriodicalId":74322,"journal":{"name":"npj urban sustainability","volume":" ","pages":"1-14"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s42949-023-00132-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135730306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Covid, cities, and sustainability: a reflection on the legacy of a global pandemic Covid、城市和可持续性：对全球大流行病遗留问题的思考

npj urban sustainability Pub Date : 2023-09-29 DOI: 10.1038/s42949-023-00130-z

Peter Newman

引用次数: 0

U.S. cities’ integration and evaluation of equity considerations into climate action plans 美国城市将公平因素纳入气候行动计划并对其进行评估

npj urban sustainability Pub Date : 2023-09-13 DOI: 10.1038/s42949-023-00129-6

Holly Caggiano, Diren Kocakuşak, Pranay Kumar, Melissa O. Tier

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Measuring sustainable urban development in residential areas of the 20 biggest Finnish cities 衡量芬兰20个最大城市住宅区的可持续城市发展

npj urban sustainability Pub Date : 2023-08-21 DOI: 10.1038/s42949-023-00127-8

Sanna Ala-Mantila, Antti Kurvinen, Aleksi Karhula

引用次数: 0

A link criticality approach for pedestrian network design to promote walking 促进步行的步行网络设计的链接临界性方法

npj urban sustainability Pub Date : 2023-08-19 DOI: 10.1038/s42949-023-00114-z

Rajat Verma, Satish V. Ukkusuri

{"title":"A link criticality approach for pedestrian network design to promote walking","authors":"Rajat Verma, Satish V. Ukkusuri","doi":"10.1038/s42949-023-00114-z","DOIUrl":"10.1038/s42949-023-00114-z","url":null,"abstract":"Measures of walkability generally do not provide a detailed quantitative assessment of pedestrian infrastructure development prioritization. In this study, a link-based composite measure of walkability and walking is introduced to overcome this limitation. This measure, called ‘pednet score’, is based on a weighted pedestrian network (‘pednet’) made of sidewalks and crosswalks whose edge weights are descriptive of their popularity. Edge popularity is derived from home-based walk trip assignments derived from simulated pedestrian demand. Properties of the pednet score are studied using three hypothetical variants of the pednet in three North American cities, each involving the addition of candidate sidewalk and/or crosswalk segments. It is shown that a strategic selection of these segments based on pednet score can substantially increase walking trips, in some cases up to 236%, and reduce current mean pedestrian trip distances by up to 340 m. A mixed development approach involving both sidewalks and crosswalks also shows considerably higher improvement than those segments considered alone. Results from marginal benefit curves strongly indicate the utility of the pednet score as a measure of link criticality for segment prioritization in pedestrian network design.","PeriodicalId":74322,"journal":{"name":"npj urban sustainability","volume":" ","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2023-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s42949-023-00114-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41878864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0