开发基于GPS数据的基于位置的新可访问性措施.
Feng Liu1, Ansar Yasar1, Jianxun Cui2,3
1Transportation Research Institute (IMOB), Hasselt University, 3500 Hasselt, Belgium.
Sensors (Basel, Switzerland)
|October 29, 2025
概括
这项研究引入了一项新的可访问性衡量方法,该测量方法考虑了旅行时间的变化,从而更准确地评估了运输网络. 这种新的方法揭示了传统方法的严重低估,改善了城市规划.
科学领域:
- 运输科学 运输科学
- 城市规划 城市规划
- 地理信息系统 (GIS) 是一个地理信息系统.
背景情况:
- 可持续的运输网络管理在很大程度上依赖于可访问性.
- 传统的可访问性措施通常只使用平均旅行时间,忽视关键的旅行时间分布.
- 这种简化导致不准确的可访问性评估,特别是在动态的交通条件下.
研究的目的:
- 开发和验证一种新的可访问性测量方法,该测量方法包含旅行时间概率密度分布.
- 量化旅行时间变化对可访问性估计的影响.
- 将拟议的方法与现有的潜在可访问性计算进行比较.
主要方法:
- 开发了一个新的可访问性模型,集成旅行时间概率密度函数.
- 利用来自中国哈尔出租车的GPS数据进行分析.
- 将新方法的可访问性结果与传统的潜在可访问性计算进行比较.
主要成果:
- 拟议的方法显示,现有的可访问性措施在103个研究区域中低估了6-28% (平均17%) 的可访问性.
- 传统方法中的不准确性导致了20%的城市地区的错误分类.
- 这种新的方法表现出对现实世界交通条件的更高灵敏度.
结论:
- 传统的可访问性测量提供了偏见和误导性的估计,因为它们忽视了旅行时间的变化.
- 旅行时间变化集成可访问性测量为交通网络性能提供了更准确和客观的评估.
- 这种改进的评估对于有效的可持续运输规划和管理至关重要.
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