论文标题
世界上每个城市地区的街道网络模型和指标
Street Network Models and Indicators for Every Urban Area in the World
论文作者
论文摘要
全球城市展示了各种塑造人类流动性，公平，健康和生计的街道网络模式和配置。这项研究使用源自全球人类定居层的边界对世界上每个城市地区的街道网络进行了建模和分析。街道网络数据是通过开源OSMNX软件从OpenStreetMap中获取和建模的。总的来说，这项研究对超过1.6亿个OpenStreetMap街网络节点进行了模型，在178个国家的8,914个城市地区，超过3.2亿个边缘，并附加了高程和等级数据。本文介绍了该研究的可再现计算工作流程，介绍了两个新的开放数据存储库，这些数据存储库是现成的全球街道网络模型并计算出的指标，并讨论了全球街头网络形式的摘要发现。它做出了四个贡献。首先，它报告了此开源工作流的方法论进步。其次，它生产一个开放数据存储库，其中包含每个城市区域的街道网络模型。第三，它分析了这些模型，以生成一个开放数据存储库，其中包含每个城市区域的街道网络形式指标。以前没有这样的全球城市街道网络指标数据集。第四，它列出了城市街网络形式的摘要分析，并报告了文献中第一个这样的全球结果。
Cities worldwide exhibit a variety of street network patterns and configurations that shape human mobility, equity, health, and livelihoods. This study models and analyzes the street networks of every urban area in the world, using boundaries derived from the Global Human Settlement Layer. Street network data are acquired and modeled from OpenStreetMap with the open-source OSMnx software. In total, this study models over 160 million OpenStreetMap street network nodes and over 320 million edges across 8,914 urban areas in 178 countries, and attaches elevation and grade data. This article presents the study's reproducible computational workflow, introduces two new open data repositories of ready-to-use global street network models and calculated indicators, and discusses summary findings on street network form worldwide. It makes four contributions. First, it reports the methodological advances of this open-source workflow. Second, it produces an open data repository containing street network models for each urban area. Third, it analyzes these models to produce an open data repository containing street network form indicators for each urban area. No such global urban street network indicator dataset has previously existed. Fourth, it presents a summary analysis of urban street network form, reporting the first such worldwide results in the literature.
