The Social Interaction Potential of Metropolitan Regions: A Time-Geographic Measurement Approach Using Joint Accessibility
The Social Interaction Potential of Metropolitan Regions: A Time-Geographic Measurement Approach Using Joint Accessibility
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DOI：
10.1080/00045608.2012.689238
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发表时间：
2013-05-01
期刊：
影响因子：
--
通讯作者：
Li, Xiao
中科院分区：
文献类型：
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作者：
Farber, Steven;Neutens, Tijs;Li, Xiao
基于共同可达性的时间-地理概念，我们提出了一种衡量大都市区社会互动潜力的方法。该指标对大都市地区的普遍土地利用模式和通勤流量、时间预算以及联合活动地点的空间分布很敏感。它是通过地理计算例程计算的，在该例程中，下班后具有代表性的时空棱镜的子集彼此相交。对指标的分解产生了城市中每个就业和居民区、特定通勤流以及潜在社交地点(如酒吧、餐馆、运动场等)的社会潜力指标。该方法是通过一个基于情景的实验来演示的，该实验探索了住宅和就业用地模式以及不同程度的通勤人流分散的影响。研究结果表明，该指标对每个场景输入参数以及参数的成对组合都有足够的响应。在实验之后，给出了一个使用犹他州盐湖城的流量数据的经验算例。然后就如何在计算实际大都市地区的指标时引入更多的现实性，以便进行比较提出了一些见解。最后，文章讨论了这一度量在城市地理学的各个主题领域的更广泛的应用，包括隔离、社会资本发展、创新和创造力、设施的位置分配和开放时间。
We put forward a method for measuring the social interaction potential of a metropolitan region based on the time-geographic concept of joint accessibility. The metric is sensitive to prevailing land use patterns and commuter flows in the metropolitan region, time budgets, and the spatial distribution of joint activity locations. It is calculated via a geocomputation routine in which a representative subset of after-work, spacetime prisms are intersected with each other. Decomposition of the metric gives rise to social potential metrics for each employment and residential zone in the city, for specific commuter flows, and for locations of potential social interaction, such as bars, restaurants, sports fields, and so on. The method is demonstrated via a scenario-based experiment that explores the impact of residential and employment land use patterns and varying levels of commuter flow dispersion. The findings indicate that the metric is adequately responsive to each of the scenario input parameters, as well as pairwise combinations of parameters. Following the experiment, an empirical example using flow data from Salt Lake City, Utah, is presented. Insights on how to introduce more realism in the calculation of the metric for actual metropolitan regions for comparative purposes are then put forward. Finally, the article concludes with a discussion of the broader applications of this metric to various topical areas in urban geography including segregation, social capital development, innovation and creativity, and location allocation of facilities and their opening hours.