Comput. Environ. Urban Syst.最新文献

Characterizing residential segregation in cities using intensity, separation, and scale indicators 利用强度、分离度和规模指标表征城市居住隔离

Comput. Environ. Urban Syst. Pub Date : 2023-07-01 DOI: 10.2139/ssrn.4258815

Lucas Spierenburg, S. Cranenburgh, O. Cats

引用次数: 0

Mapping the walk: A scalable computer vision approach for generating sidewalk network datasets from aerial imagery 绘制人行道:一种可扩展的计算机视觉方法，用于从航空图像中生成人行道网络数据集

Comput. Environ. Urban Syst. Pub Date : 2023-04-01 DOI: 10.2139/ssrn.4086624

Maryam Hosseini, Andres Sevtsuk, Fábio Miranda, RobertoM. Cesar Jr., Cláudio T. Silva

引用次数: 14

Multiscale analysis of the influence of street built environment on crime occurrence using street-view images 基于街景图像的街道建成环境对犯罪发生影响的多尺度分析

Comput. Environ. Urban Syst. Pub Date : 2022-10-01 DOI: 10.1016/j.compenvurbsys.2022.101865

Zhanjun He, Zhipeng Wang, Zhong Xie, Liang Wu, Zhanlong Chen

引用次数: 13

Generative population synthesis for joint household and individual characteristics 联合家庭和个体特征的生殖种群综合

Comput. Environ. Urban Syst. Pub Date : 2022-09-01 DOI: 10.2139/ssrn.4015247

Zack Aemmer, D. MacKenzie

引用次数: 3

DeepVerge: Classification of Roadside Verge Biodiversity and Conservation Potential DeepVerge:路边边缘生物多样性分类及其保护潜力

Comput. Environ. Urban Syst. Pub Date : 2022-06-09 DOI: 10.48550/arXiv.2206.04271

Andrew J. Perrett, C. Barnes, M. Schofield, L. Qie, Petra Bosilj, James M. Brown

{"title":"DeepVerge: Classification of Roadside Verge Biodiversity and Conservation Potential","authors":"Andrew J. Perrett, C. Barnes, M. Schofield, L. Qie, Petra Bosilj, James M. Brown","doi":"10.48550/arXiv.2206.04271","DOIUrl":"https://doi.org/10.48550/arXiv.2206.04271","url":null,"abstract":"Open space grassland is being increasingly farmed or built upon, leading to a ramping up of conservation efforts targeting roadside verges. Approximately half of all UK grassland species can be found along the country's 500,000 km of roads, with some 91 species either threatened or near threatened. Careful management of these\"wildlife corridors\"is therefore essential to preventing species extinction and maintaining biodiversity in grassland habitats. Wildlife trusts have often enlisted the support of volunteers to survey roadside verges and identify new\"Local Wildlife Sites\"as areas of high conservation potential. Using volunteer survey data from 3,900 km of roadside verges alongside publicly available street-view imagery, we present DeepVerge; a deep learning-based method that can automatically survey sections of roadside verges by detecting the presence of positive indicator species. Using images and ground truth survey data from the rural county of Lincolnshire, DeepVerge achieved a mean accuracy of 88%. Such a method may be used by local authorities to identify new local wildlife sites, and aid management and environmental planning in line with legal and government policy obligations, saving thousands of hours of manual labour.","PeriodicalId":309282,"journal":{"name":"Comput. Environ. Urban Syst.","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126991935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Equitable Optimization of U.S. Airline Route Networks 美国航线网络的公平优化

Comput. Environ. Urban Syst. Pub Date : 2022-05-08 DOI: 10.48550/arXiv.2205.03900

Arnav Joshi, Andy G. Eskenazi, Landon Butler, Megan S. Ryerson

{"title":"Equitable Optimization of U.S. Airline Route Networks","authors":"Arnav Joshi, Andy G. Eskenazi, Landon Butler, Megan S. Ryerson","doi":"10.48550/arXiv.2205.03900","DOIUrl":"https://doi.org/10.48550/arXiv.2205.03900","url":null,"abstract":"Restructuring route networks (i.e., modifying the graph of origin-destination pairs) remains a promising alternative for reducing the airline industry's environmental impact. However, there exists a fundamental trade-off between emissions from flight and airport accessibility, since flights connecting underserved, low-accessibility communities tend to possess high CO2 per seat-mile ratios. Thus, this work develops an open-source analytical framework and methodology that restructures U.S. airline route networks to simultaneously minimize emissions and maximize airport accessibility. To achieve this goal, this paper designs a metric to quantify airport accessibility and combines it with an open-source system-wide emissions estimation methodology. This facilitates the creation of a mixed-integer linear optimization model that returns revised flight frequencies and aircraft allotment. Using United Airlines 2019 Q3 data as a case study, this model is able to construct an alternative route network with a 25% reduction on the total number of flights, 4.4% decrease in the average emissions per seat-mile and a 17.6% improvement in the spread of the airports' accessibility scores, all while satisfying historic passenger demand.","PeriodicalId":309282,"journal":{"name":"Comput. Environ. Urban Syst.","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126534919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Development of current estimated household data and agent-based simulation of the future population distribution of households in Japan 开发当前估计的家庭数据和基于代理的日本未来家庭人口分布模拟

Comput. Environ. Urban Syst. Pub Date : 2022-04-01 DOI: 10.48550/arXiv.2204.00198

Kento Kajiwara, Jue Ma, Toshikazu Seto, Y. Sekimoto, Y. Ogawa, Hiroshi Omata

{"title":"Development of current estimated household data and agent-based simulation of the future population distribution of households in Japan","authors":"Kento Kajiwara, Jue Ma, Toshikazu Seto, Y. Sekimoto, Y. Ogawa, Hiroshi Omata","doi":"10.48550/arXiv.2204.00198","DOIUrl":"https://doi.org/10.48550/arXiv.2204.00198","url":null,"abstract":"In response to the declining population and aging infrastructure in Japan, local governments are implementing compact city policies such as the location normalization plan. To optimize the reorganization of urban public infrastructure, it is important to provide detailed and accurate forecasts of the distribution of urban populations and households. However, many local governments do not have the necessary data and forecasting capability. Moreover, current forecasts of gender-and age-based population data only exist at the municipal level, and household data are only available by family type at the prefecture level. Meanwhile, the accuracy is limited with an assumption of same change rate of population in all municipalities and within each city. Therefore, the aim of this study was to develop an agent-based microsimulation household transition model, with the household as the unit and agent, and household data was estimated for all cities in Japan from 2015. Estimated household data comprised the family type, house type, and address, age, and gender of household members, obtained from the national census, and building data. The resulting household transition model was used to forecast the attributes of each household every five years. Simulations in Toyama and Shizuoka Prefectures, Japan from 1980 to 2010 provided highly accurate estimates of municipal-level population by age and household volume by family type. The proposed model was also applied to predict the future distribution of disappearing villages and vacant houses in Japan.","PeriodicalId":309282,"journal":{"name":"Comput. Environ. Urban Syst.","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115507423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Unravelling the dynamics behind the urban morphology of port-cities using a LUTI model based on cellular automata 使用基于元胞自动机的LUTI模型揭示港口城市城市形态背后的动态

Comput. Environ. Urban Syst. Pub Date : 2022-03-01 DOI: 10.1016/j.compenvurbsys.2021.101733

Aditya Tafta Nugraha, B. Waterson, S. Blainey, Frederick J. Nash

引用次数: 4

Representing geographic space as a hierarchy of recursively defined subspaces for computing the degree of order 将地理空间表示为递归定义的子空间的层次结构，用于计算有序度

Comput. Environ. Urban Syst. Pub Date : 2021-12-16 DOI: 10.20944/preprints202112.0309.v1

B. Jiang, C. D. Rijke

{"title":"Representing geographic space as a hierarchy of recursively defined subspaces for computing the degree of order","authors":"B. Jiang, C. D. Rijke","doi":"10.20944/preprints202112.0309.v1","DOIUrl":"https://doi.org/10.20944/preprints202112.0309.v1","url":null,"abstract":"As Christopher Alexander discovered, all space or matter – either organic or inorganic – has some degree of order in it according to its structure and arrangement. The order refers to a kind of structural character, called living structure, which is defined as a mathematical structure that consists of numerous substructures with an inherent hierarchy. Across the hierarchy, there are far more small substructures than large ones, while on each level of the hierarchy the substructures are more or less similar in size. In this paper we develop a new approach to representing geographic space as a hierarchy of recursively defined subspaces for computing the degree of order. A geographic space is first represented as a hierarchy of recursively defined subspaces, and all the subspaces are then topologically represented as a network for computing the degree of order of the geographic space, as well as that of its subspaces. Unlike conventional geographic representations, which are mechanical in nature, this new geographic representation is organic, conceived, and developed under the third view of space; that is, space is neither lifeless nor neutral, but a living structure capable of being more living or less living. Thus, the order can also be referred to as life, beauty, coherence, or harmony. We applied the new representation to three urban environments, 253 patterns, and 35 black-white strips to verify it and to demonstrate advantages of the new approach and the new kind of order. We further discuss the implications of the approach and the order on geographic information science and sustainable urban planning.","PeriodicalId":309282,"journal":{"name":"Comput. Environ. Urban Syst.","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130101888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Road network evolution in the urban and rural United States since 1900 自1900年以来美国城市和农村道路网络的演变

Comput. Environ. Urban Syst. Pub Date : 2021-08-30 DOI: 10.21203/rs.3.rs-957212/v1

K. Burghardt, Johannes H. Uhl, Kristina Lerman, S. Leyk

引用次数: 21