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A novel approach to evaluating the accessibility of electric vehicle charging infrastructure via dynamic thresholding in machine learning 通过机器学习中的动态阈值评估电动汽车充电基础设施可达性的新方法
IF 3.5 3区 经济学 Q1 Engineering Pub Date : 2024-04-26 DOI: 10.1177/23998083241249322
Bailing Zhang, Jing Kang, Tao Feng
The spatial deployment of urban public electric vehicle charging stations (PEVCSs) plays a pivotal role in the widespread adoption of electric vehicles (EVs). However, with the rapid advancements in EV technology and battery capabilities, substantial improvements in both range and charging efficiency have emerged and are expected to continue experiencing sustained growth. This situation underscores the urgent necessity of establishing dynamic metrics to reconsider the existing static charging infrastructure, aiming to ameliorate the current severe spatial imbalances and supply–demand disparities encountered in the deployment of PEVCSs. In this study, we harnessed and analyzed 84,152 sets of authentic data, fine-tuned through geospatial-aggregation technology, and ensured anonymity. Our findings bridged users’ residential and occupational patterns with their charging propensities. Comparing these with the spatial distribution of current charging stations revealed that Beijing and Shenzhen’s infrastructure aligned with the cities' economic, educational, and residential zones, epitomizing a synergy in provisioning. However, certain areas experienced either a demand–supply imbalance or an oversupply. To address these challenges, we introduced the Charging Access Reachability Index (CARI) using machine learning techniques. This dynamic metric serves as a tool for quantifying the effective coverage range of charging facilities. Its adaptive threshold holds potential as a crucial indicator enabling the dynamic transition towards more efficient and resilient charging infrastructure.
城市公共电动汽车充电站(PEVCS)的空间部署在电动汽车(EV)的广泛应用中起着举足轻重的作用。然而,随着电动汽车技术和电池性能的飞速发展,续航里程和充电效率都有了大幅提高,预计还将继续保持持续增长。这种情况突出表明,迫切需要建立动态指标来重新考虑现有的静态充电基础设施,以改善目前在部署 PEVCS 时遇到的严重空间不平衡和供需不对等问题。在本研究中,我们利用并分析了 84,152 组真实数据,通过地理空间聚合技术进行了微调,并确保了数据的匿名性。我们的研究结果将用户的居住和职业模式与他们的充电倾向联系起来。将这些数据与当前充电站的空间分布进行比较后发现,北京和深圳的基础设施与城市的经济、教育和居住区相匹配,体现了供应方面的协同效应。然而,某些地区出现了供需失衡或供过于求的问题。为了应对这些挑战,我们利用机器学习技术引入了充电接入可达性指数(CARI)。这一动态指标是量化充电设施有效覆盖范围的工具。它的自适应阈值有可能成为一个关键指标,使充电基础设施向更高效、更有弹性的方向动态过渡。
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引用次数: 0
Practicing data inclusion: Co-creation of an urban data dashboard 实践数据包容性:共同创建城市数据仪表板
IF 3.5 3区 经济学 Q1 Engineering Pub Date : 2024-04-22 DOI: 10.1177/23998083241245759
Yael Nidam, Reann Gibson, Rebecca Houston-Read, Marcia Picard, Vedette Gavin
Co-creation of urban data and informatics with community partners facilitates the development of insights and actions that are grounded in residents’ experiences and aimed at achieving social change. Despite rising interest in co-creation strategies, instructive guidance on implementation remains scarce. To address the shortage of instructive guidance, we provide a detailed account of how the resident, community, and institutional partners in the Healthy Neighborhoods Study co-created a dataset on neighborhood health, and a data dashboard that allows for all partners, as well as the public, to access and use the data to support neighborhood-level action and regional planning. We focus on the collaborative and iterative design process used to co-create a digital tool to access, analyze, interpret, and communicate community-generated data. While co-creation strategies require an upfront investment in relationship building and facilitating a more complex process, they carry significant benefits in producing truly representative datasets and data tools and services that advance data inclusion, laying the foundation for social change.
与社区合作伙伴共同创建城市数据和信息学,有助于形成以居民经验为基础、以实现社会变革为目标的见解和行动。尽管人们对共同创造战略的兴趣日益浓厚,但有关实施的指导性意见仍然很少。为了解决缺乏指导性指南的问题,我们详细介绍了 "健康邻里研究 "中的居民、社区和机构合作伙伴是如何共同创建邻里健康数据集和数据仪表板的,该仪表板允许所有合作伙伴以及公众访问和使用数据,以支持邻里层面的行动和区域规划。我们将重点放在合作和迭代设计过程中,共同创建一个数字工具,用于访问、分析、解释和交流社区生成的数据。虽然共同创造策略需要在建立关系和促进更复杂的过程中进行前期投资,但它们在产生真正具有代表性的数据集以及数据工具和服务方面具有显著的优势,可推进数据包容性,为社会变革奠定基础。
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引用次数: 0
The fuel of discontent? Transport poverty risks and equity concerns in French urban peripheries 不满情绪的燃料?法国城市边缘地区的交通贫困风险和公平问题
IF 3.5 3区 经济学 Q1 Engineering Pub Date : 2024-04-22 DOI: 10.1177/23998083241246377
Armand Pons, Olivier Finance, Alexis Conesa
A range of accessibility indicators has been developed in the past decade to evaluate equity in transportation within urban areas. Some studies have attempted to incorporate them in transport poverty metrics, focussing on insufficient access to general services and employment. While accessibility measures coupled with statistics have been effective in assessing immediate households’ vulnerability, we argue that an analysis of their adaptive capacity could contribute to a better information of local policies in the long term. This paper aims to develop a methodology for mapping transport poverty risks at the metropolitan scale, while studying the relation between urban segregation and the transport divide. We use the case study of Lyon to operationalise our method and find evidence of vulnerability patterns previously identified in the sociological literature. Beyond the sensitivity of households living in the first-crown neighbourhoods and the growing exposure of medium-income families settling in peripheral municipalities, we emphasise the importance of using mixed methodologies to better capture households’ needs and mobility choices within suburban environments. We conclude by discussing shortcomings and future developments of our research.
在过去十年中,为评估城市地区交通的公平性,制定了一系列无障碍指标。一些研究试图将这些指标纳入交通贫困指标中,重点关注无法充分获得一般服务和就业的问题。虽然与统计数据相结合的无障碍措施在评估直接家庭的脆弱性方面很有效,但我们认为,对其适应能力的分析有助于更好地了解地方政策的长期情况。本文旨在开发一种方法,用于绘制大都市范围内的交通贫困风险图,同时研究城市隔离与交通鸿沟之间的关系。我们以里昂为案例,将我们的方法付诸实施,并发现了之前在社会学文献中发现的脆弱性模式的证据。除了居住在一等社区的家庭的敏感性以及在外围城市定居的中等收入家庭的不断增加,我们还强调了使用混合方法的重要性,以更好地捕捉郊区环境中家庭的需求和流动选择。最后,我们将讨论我们研究的不足之处和未来发展。
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引用次数: 0
Corrigendum to ‘Transportation and urban spatial structure: Evidence from Paris’ 交通与城市空间结构:来自巴黎的证据
IF 3.5 3区 经济学 Q1 Engineering Pub Date : 2024-04-18 DOI: 10.1177/23998083241247523
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引用次数: 0
Inequalities in the potential movement of social groups: A network-based indicator 社会群体潜在流动的不平等:基于网络的指标
IF 3.5 3区 经济学 Q1 Engineering Pub Date : 2024-04-18 DOI: 10.1177/23998083241246375
Ana Luisa Maffini, Gustavo Maciel Gonçalves, Clarice Maraschin, Jorge Gil
Accessibility and mobility are key concerns of sustainable cities, especially in the Global South, due to the strong social inequalities. This paper contributes to the literature on mobility segregation by focusing on the potential movement of social groups in the city. We conceptualize potential movement as a network centrality, acting as an indicator of population movement when performing daily activities (working, studying, shopping, etc.). This paper’s objectives are (a) to identify the inequalities in potential movement of different social groups performing their daily activities; (b) to propose a network-based method to enhance our understanding of mobility inequalities; and (c) to address the context of medium-sized Latin American cities. We adopt a modified Betweenness Centrality model (Potential Movement) on a directed and weighted network. Our results show a similar pattern for both cities, with the CBD concentrating the potential movement for all groups; however, several inequalities were found. The high-income and white groups show higher levels of potential movement in the CBD and the low-income and non-white groups have a more distributed potential movement pattern, implying longer journeys to reach jobs and services. Income and race have shown to play a crucial role in those inequalities.
由于存在严重的社会不平等现象,无障碍环境和流动性是可持续城市的关键问题,尤其是在全球南部地区。本文通过关注社会群体在城市中的潜在流动,为有关流动性隔离的文献做出了贡献。我们将潜在流动概念化为网络中心性,作为人口在进行日常活动(工作、学习、购物等)时的流动指标。本文的目标是:(a) 确定不同社会群体在进行日常活动时的潜在流动不平等;(b) 提出一种基于网络的方法,以加强我们对流动不平等的理解;(c) 解决拉丁美洲中等城市的问题。我们在有向加权网络上采用了修改后的 "潜在运动"(Betweenness Centrality)模型。我们的研究结果表明,两个城市的模式相似,中央商务区集中了所有群体的潜在流动;但是,我们也发现了一些不平等现象。高收入群体和白人群体在中央商务区的潜在流动水平较高,而低收入群体和非白人群体的潜在流动模式更为分散,这意味着他们需要花费更长的路程才能到达工作和服务地点。收入和种族在这些不平等中起着至关重要的作用。
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引用次数: 0
Classifying and mapping residential structure through the London Output Area Classification 通过伦敦产出区分类法对住宅结构进行分类和绘图
IF 3.5 3区 经济学 Q1 Engineering Pub Date : 2024-04-12 DOI: 10.1177/23998083241242913
Alex D Singleton, Paul A Longley
This paper outlines the creation of the London Output Area Classification (LOAC) from the 2021 Census, set within the broader context of geodemographic classification systems in the United Kingdom. The LOAC 2021 was developed in collaboration with the Greater London Authority (GLA) and offers an enhanced, statistically robust typology adept at capturing the unique spatial, socio-economic and built characteristics of London’s residential neighbourhoods. The paper asserts the critical importance of nuanced, area-specific geodemographic classifications for urban areas with unique geography relative to the national extent.
本文从英国地理人口统计分类系统的大背景出发,概述了根据 2021 年人口普查创建伦敦产出区分类(LOAC)的情况。2021 年伦敦产出地区分类是与大伦敦地区管理局(GLA)合作开发的,它提供了一种经过改进的、统计上稳健的类型学,善于捕捉伦敦居民区独特的空间、社会经济和建筑特征。本文认为,对于相对于全国范围具有独特地理特征的城市地区而言,细致入微的特定区域地理人口分类至关重要。
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引用次数: 0
Analyzing urban scaling laws in the United States over 115 years 分析美国 115 年来的城市缩放法律
IF 3.5 3区 经济学 Q1 Engineering Pub Date : 2024-04-10 DOI: 10.1177/23998083241240099
Keith Burghardt, Johannes H Uhl, Kristina Lerman, Stefan Leyk
The scaling relations between city attributes and population are emergent and ubiquitous aspects of urban growth. Quantifying these relations and understanding their theoretical foundation, however, is difficult due to the challenge of defining city boundaries and a lack of historical data to study city dynamics over time and space. To address this issue, we analyze scaling between city infrastructure and population across 857 metropolitan areas in the conterminous United States over an unprecedented 115 years (1900–2015) using dasymetrically refined historical population estimates, historical urban road network models, and multi-temporal settlement data to define dynamic city boundaries. We demonstrate that urban scaling exponents closely match theoretical models over a century. Despite some close quantitative agreement with theory, the empirical scaling relations unexpectedly vary across regions. Our analysis of scaling coefficients, meanwhile, reveals that contemporary cities use more developed land and kilometers of road than cities of similar population in 1900, which has serious implications for urban development and impacts on the local environment. Overall, our results provide a new way to study urban systems based on novel, geohistorical data.
城市属性与人口之间的比例关系是城市发展中普遍存在的新问题。然而,量化这些关系并理解其理论基础却很困难,这是因为城市边界的界定存在挑战,而且缺乏历史数据来研究城市在时间和空间上的动态变化。为了解决这个问题,我们利用二元精炼历史人口估算、历史城市路网模型和多时空定居数据来定义动态城市边界,分析了美国本土 857 个大都市地区在史无前例的 115 年(1900-2015 年)中城市基础设施与人口之间的比例关系。我们证明,一个多世纪以来,城市缩放指数与理论模型非常吻合。尽管在数量上与理论密切吻合,但不同地区的经验缩放关系却出人意料地存在差异。同时,我们对缩放系数的分析表明,与 1900 年人口相近的城市相比,当代城市使用了更多的已开发土地和道路公里数,这对城市发展和对当地环境的影响产生了严重影响。总之,我们的研究结果为基于新颖的地理历史数据研究城市系统提供了一种新方法。
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引用次数: 0
Towards urban place-based resilience modeling: Mixed methods for a flood resilience assessment index 建立基于城市地点的复原力模型:洪灾复原力评估指数的混合方法
IF 3.5 3区 经济学 Q1 Engineering Pub Date : 2024-04-08 DOI: 10.1177/23998083241243104
Brad Bottoms, Julie Arbit, Earl Lewis, Alford Young
Large-scale socioeconomic vulnerability models commonly used in flood hazard assessments grapple with data limitations and struggle to fully capture diversity in vulnerability and resilience stemming from America’s sociopolitical history. In response, we developed a prototype for a place-based Flood Resilience Assessment Index (FRAI) using tract-level geographies that illustrates human-centric frameworks for quantifying flood resilience in the U.S. For these purposes, we define flood resilience as the likelihood a tract will rebound from a flood disaster. This framework can be used in tandem with flood risk models. We employ mixed methods in geospatial processing, including dasymetric interpolation and network analysis to model access. We also standardize variables by percentage to enable temporal analyses and equity-centered narrative framing. While the resulting scores for a five-county pilot study correlate with those of leading vulnerability indices, FRAI leverages diverse data sources and novel methods to represent the changing landscapes, resources, and needs of urban cores and growing suburbs. Future trajectories for FRAI will continue to define and refine methods for diverse datasets, employ participatory methods for emergency managers and residents of flood-prone communities in value-setting, weighting, and validation, and identify policy and practice avenues.
洪水灾害评估中常用的大规模社会经济脆弱性模型受到数据限制,难以充分反映美国社会政治历史造成的脆弱性和抗灾能力的多样性。为此,我们开发了一个基于地方的洪水复原力评估指数(FRAI)原型,该指数使用了区级地理数据,说明了美国以人为本的洪水复原力量化框架。该框架可与洪水风险模型结合使用。在地理空间处理方面,我们采用了混合方法,包括数据插值和网络分析,以建立访问模型。我们还按百分比将变量标准化,以便进行时间分析和以公平为中心的叙述框架。虽然五县试点研究得出的分数与主要的脆弱性指数相关,但 FRAI 利用不同的数据源和新颖的方法来代表不断变化的地貌、资源以及城市核心和不断发展的郊区的需求。FRAI 未来的发展轨迹将继续定义和完善适用于不同数据集的方法,采用应急管理人员和洪水易发社区居民参与的方法进行价值设定、加权和验证,并确定政策和实践途径。
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引用次数: 0
Urban form and socioeconomic deprivation in Isfahan: An urban MorphoMetric approach 伊斯法罕的城市形态与社会经济贫困:城市 MorphoMetric 方法
IF 3.5 3区 经济学 Q1 Engineering Pub Date : 2024-04-08 DOI: 10.1177/23998083241245491
Alessandro Venerandi, Alessandra Feliciotti, Safoora Mokhtarzadeh, Maryam Taefnia, Ombretta Romice, Sergio Porta
Studies on urban deprivation date back to the 19th Century but remain important today due to rising levels of inequality and social segregation. However, while social causes of deprivation have been investigated, the role of the built environment remains neglected. Existing studies either provide broad coverage at the expense of detailed morphological descriptions or offer meticulous accounts of small-scale areas without capturing the broader context. This paper addresses this gap by investigating the relationship between urban form, measured at the building level, and deprivation across the entire city of Isfahan, Iran. By doing so, we position this study in the tradition of urban morphology. Operationally, we, first, identify urban types (UTs), that is, distinctive patterns of urban form, by clustering 200+ morphological characters; second, we explore the relationship between proportion of buildings belonging to each UT, in each neighbourhood, and deprivation; third, we offer detailed descriptions of the UTs most strongly associated with deprivation, discuss possible drivers for the observed correlations, and link findings to relevant literature in the field. Twelve UTs are identified, with four showing the strongest impacts on predicting deprivation. This study brings novel insights on the morphology of deprivation of Isfahan, while contextualising them with respect to domain-specific studies, which have predominantly focused on Western cities. The proposed methodology can be replicated to explore morphologies of deprivation in different contexts, further our understanding of the topic, and potentially inform planning and policy making.
对城市贫困问题的研究可以追溯到 19 世纪,但由于不平等和社会隔离现象日益严重,这些研究在今天仍然非常重要。然而,在对贫困的社会原因进行调查的同时,建筑环境的作用仍被忽视。现有的研究要么提供了广泛的覆盖面,但牺牲了详细的形态描述,要么对小规模地区进行了细致的描述,但没有捕捉到更广泛的背景。本文通过研究伊朗伊斯法罕整个城市的城市形态(在建筑层面进行衡量)与贫困之间的关系,弥补了这一空白。通过这样做,我们将这项研究定位在城市形态学的传统上。在操作上,我们首先通过对 200 多个形态特征进行聚类,识别出城市类型(UTs),即城市形态的独特模式;其次,我们探讨了每个街区中属于每个UTs 的建筑比例与贫困之间的关系;第三,我们详细描述了与贫困关系最密切的UTs,讨论了观察到的相关性的可能驱动因素,并将研究结果与该领域的相关文献联系起来。我们确定了 12 个统一域名,其中 4 个对预测贫困的影响最大。这项研究对伊斯法罕的贫困形态提出了新的见解,同时将这些见解与主要侧重于西方城市的特定领域研究相结合。所提出的方法可用于探索不同环境下的贫困形态,进一步加深我们对这一主题的理解,并为规划和政策制定提供参考。
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引用次数: 0
A geo-referenced micro-data set of real estate listings for Spain’s three largest cities 西班牙三大城市房地产清单的地理参照微观数据集
IF 3.5 3区 经济学 Q1 Engineering Pub Date : 2024-04-04 DOI: 10.1177/23998083241242844
David Rey-Blanco, Pelayo Arbues, Fernando Lopez, Antonio Paez
This article presents an open data product with large geo-referenced micro-data sets of 2018 real estate listings in Spain. These data were originally published on the idealista.com real estate website. The observations were obtained for the three largest cities in Spain: Madrid ( n = 94,815 observations), Barcelona ( n = 61,486 observations), and Valencia ( n = 33,622 observations). The data sets include the coordinates of properties (latitude and longitude), asking prices of each listed dwelling, and several variables of indoor characteristics. The listings were enriched with official information from the Spanish cadastre (e.g., building material quality) plus other relevant geographical features, such as distance to urban points of interest. Along with the real estate listings, the data product also includes neighborhood boundaries for each city. The data product is offered as a fully documented R package and is available for scientific and educational purposes, particularly for geo-spatial studies.
本文介绍了一个开放数据产品,其中包含 2018 年西班牙房地产清单的大型地理参照微观数据集。这些数据最初发布在 idealista.com 房地产网站上。这些观测数据来自西班牙最大的三个城市:马德里(n = 94,815 个观测值)、巴塞罗那(n = 61,486 个观测值)和瓦伦西亚(n = 33,622 个观测值)。数据集包括房产坐标(经度和纬度)、每套挂牌住宅的报价以及若干室内特征变量。房源信息还包括西班牙地籍的官方信息(如建筑材料质量)以及其他相关地理特征,如与城市景点的距离。除房地产列表外,数据产品还包括每个城市的街区边界。该数据产品以文档齐全的 R 软件包形式提供,可用于科学和教育目的,尤其是地理空间研究。
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引用次数: 0
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Environment and Planning B: Urban Analytics and City Science
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