Impacts of high-speed rail on the inequality of intercity accessibility: A case study of Liaoning Province, China
Impacts of high-speed rail on the inequality of intercity accessibility: A case study of Liaoning Province, China
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DOI：
10.1016/j.jtrangeo.2020.102920
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发表时间：
2021
影响因子：
6.1
通讯作者：
Huanhuan Luo;Shengchuan Zhao
中科院分区：
文献类型：
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作者：
Huanhuan Luo;Shengchuan Zhao
中国高铁的快速发展不仅提高了日常交通的便利性，也促进了高铁沿线城市的区域经济。高铁带来的可达性改善和空间不平等的减少将对交通发展项目评价发挥积极作用，有助于实现区域协调发展。我们的目的是根据现有的高速公路和高铁网络，以及空间差异和可达性分布格局的变化，评估每个城市从高铁中可以获得多少经济潜力可达性的改善。本文以辽宁省为例，利用重力模型研究了两种城际交通情景下的空间格局和可达性不平等。还进行了参数的敏感性分析和不同质量指标的测试。结果表明，中心地区城市的可达性优于周边地区。周边地区和高铁线附近的城市往往从高铁中受益更多。在拥有高铁的城市中，可达性的不平等程度大大降低，但总体上仅略有降低。
The rapid development of Chinese high-speed rail (HSR) not only improves the convenience of daily transportation, but also promotes the regional economy of cities along the HSR lines. Accessibility improvement and spatial inequality reduction caused by HSR would play a positive role in transportation development projects appraisal and help achieve the regional coordinated development. Our purpose is to assess how much improvement of economic potential accessibility can each city get from the HSR based on the existing highway and HSR networks, as well as the changes in spatial disparity and accessibility distribution patterns. Taking Liaoning Province as a case, this paper studies the spatial pattern and inequality of accessibility in two intercity transportation scenarios using a gravity-based model. The sensitivity analysis of the parameter and the test of different mass indicators are also conducted. The results show that cities in the central areas have better accessibility than peripheral areas. Cities in the peripheral areas and near the HSR lines tend to benefit more from HSR. The inequality of accessibility decreases a lot in cities with HSR access but only has a minor reduction on a whole scale.