Abstract

Earlier location-based accessibility analysis by car mode utilizes network travel distance (NTD) or static travel time (STT) as travel impedances. A recent trend in the literature that considers impedance as dynamic travel time (DTT) emerged, allowing examining continuous accessibility patterns. This research aims to evaluate the measured spatial-temporal change in accessibility for the different travel impedances. The research develops a GIS-remote sensing framework to evaluate the resemblance in spatial and temporal accessibility change at high resolution. It also investigates the dominant impact of significant accessibility components on influencing their results. According to results, impedances of NTD and STT represent almost identical outcomes, with correlation coefficients almost equal to 1.00, while failing to capture the dominant change of accessibility components. However, DTT illustrates varying patterns highly influenced by change in mobility. It shows the interplay between dominant accessibility components at the required resolution, which could facilitate better knowledge-based decisions for policymakers.

摘要

较早的基于汽车模式的基于位置的可访问性分析利用网络行驶距离（NTD）或静态行驶时间（STT）作为行驶阻抗。文献中出现了将阻抗视为动态传播时间（DTT）的最新趋势，从而可以检查连续的可访问性模式。这项研究的目的是评估在不同的行进阻抗下，可访问性的时空变化。该研究开发了一种GIS遥感框架，以高分辨率评估时空可访问性变化的相似性。它还调查了重要的可访问性组件对影响其结果的主要影响。根据结果​​，NTD和STT的阻抗代表几乎相同的结果，相关系数几乎等于1.00，而无法捕获可访问性组件的主要变化。但是，DTT说明了受移动性变化高度影响的变化模式。它以所需的分辨率显示了主要可访问性组件之间的相互作用，这可以为决策者提供更好的基于知识的决策。