论文标题
衡量高速铁路对中国城市互动的动态影响
Measuring the Dynamic Impact of High-Speed Railways on Urban Interactions in China
论文作者
论文摘要
高铁（HSR）已成为大城市之间城市间运输的重要方式。 HSR促进的城市间互动倾向于在促进城市和区域经济一体化和发展中发挥更重要的作用。因此，量化高铁的互动对城市和人们的影响对于长期城市和区域发展计划和政策制定至关重要。我们使用社交媒体中的最高信息来开发一个评估框架，以估计这种交互的动态。本文采用了两种类型的空间信息：社交媒体帖子中的toponyms，以及嵌入社交媒体帖子中的地理位置信息。该框架强调了城市之间社会互动的不对称性质，并提出了一系列指标，以从多个角度量化这种影响，包括相互作用强度，空间衰减和渠道效应。结果表明，HSR不仅大大扩展了城市间连接的不均匀分布，而且还可以显着重塑通过通道效应沿HSR路由发生的相互作用。
High-speed rail (HSR) has become an important mode of inter-city transportation between large cities. Inter-city interaction facilitated by HSR tends to play a more prominent role in promoting urban and regional economic integration and development. Quantifying the impact of HSR's interaction on cities and people is therefore crucial for long-term urban and regional development planning and policy making. We develop an evaluation framework using toponym information from social media as a proxy to estimate the dynamics of such interactions. This paper adopts two types of spatial information: toponyms from social media posts, and the geographical location information embedded in social media posts. The framework highlights the asymmetric nature of social interaction among cities, and proposes a series of metrics to quantify such impact from multiple perspectives, including interaction strength, spatial decay, and channel effect. The results show that HSRs not only greatly expand the uneven distribution of inter-city connections, but also significantly reshape the interactions that occur along HSR routes through the channel effect.
