Accessibility and connectivity in physical activity studies: The impact of missing pedestrian data
Accessibility and connectivity in physical activity studies: The impact of missing pedestrian data
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DOI：
10.1016/j.ypmed.2007.08.004
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发表时间：
2008-01-01
影响因子：
5.1
通讯作者：
Knuiman, Mathew
中科院分区：
文献类型：
--
作者：
Chin, Gary K. W.;Van Niel, Kimberly P.;Knuiman, Mathew
目标。建筑环境的体力活动研究的一个重要特征是网络连通性，通常使用街道网络进行计算。然而，真正的步行网络可能与街道网络具有非常不同的连接性。这项研究于2004年进行，考察了西澳大利亚州珀斯的四个大都市郊区使用街道网络和步行网络时可步行分析的差异。珀斯的街道网络被用来表示可步行分析的当前数据标准。2003年的航空摄影被用来创建一个步行网络，将人行道纳入街道网络。通过三种连通性指标：支撑层、路段结点率和步行线直接度，对街道和步行网进行了比较。使用街道和步行网络的结果的比较显示，传统社区设计的结果截然不同。随着行人网络的增加，传统社区的连通性指标提高了120%，尽管传统社区的连通性总体上仍然略有改善。真正的步行网络提高了社区的连通性，并可能对这些措施产生重大影响，特别是在具有传统街道设计的社区。至关重要的是，未来的研究应将行人网络纳入他们的分析。(C)2007 Elsevier Inc.保留所有权利。
Objective. One important characteristic in physical activity research into the built environment is network connectivity, usually calculated using street networks. However, a true pedestrian network may have very different connectivity than a street network. This study, conducted in 2004, examines the difference in walkability analyses when street networks versus pedestrian networks are used for four metropolitan suburbs in Perth, Western Australia.Methods. A street network of Perth was used to represent the current standard of data for walkability analyses. Aerial photography from 2003 was used to create a pedestrian network, which incorporated pedestrian footpaths into the street network. The street and pedestrian networks were compared using three measures of connectivity: Pedsheds, link node ratio and pedestrian route directness.Results. A comparison of the results using street versus pedestrian networks showed very different outcomes for conventional neighbourhood designs. Connectivity measures for conventional neighbourhoods improved up to 120% with the addition of pedestrian networks, although traditional neighbourhoods still had slightly better connectivity values overall.Conclusion. The true pedestrian network increases the connectivity of a neighbourhood and may have significant impact on these measures, especially in neighbourhoods with conventional street designs. It is critical that future studies incorporate pedestrian networks into their analyses. (C) 2007 Elsevier Inc. All rights reserved.