| 行程时间不确定环境下地点可达性研究 |
| |
| 引用本文： | 王亚飞,袁辉,陈碧宇,李清泉,万梦,王家耀,郭建忠.行程时间不确定环境下地点可达性研究[J].武汉大学学报(信息科学版),2019,44(11):1723-1729. |
| |
| 作者姓名： | 王亚飞 袁辉 陈碧宇 李清泉 万梦 王家耀 郭建忠 |
| |
| 作者单位： | 1.武汉大学测绘遥感信息工程国家重点实验室, 湖北 武汉, 430079 |
| |
| 基金项目： | 国家自然科学基金41571149湖北省自然科学基金2016CFB568 |
| |
| 摘 要： | 在传统可达性度量方法的基础上进行改进，提出了一种行程时间不确定环境下地点时空效用可达性度量方法，考虑了行程时间不确定性以及需求端竞争的时变效应。利用深圳市真实的浮动车数据和在线用户原创内容（user-generated content，UGC）数据对深圳市餐饮可达性分布水平进行了分析，结果表明，所提的可达性度量模型比传统可达性度量模型能更准确地表达城市可达性分布。
|
| 关 键 词： | 地点可达性 行程时间不确定性 需求端竞争 UGC数据 时空效用法 |
| 收稿时间： | 2018-07-10 |
Measuring Place-Based Accessibility Under Travel Time Uncertainty |
| |
| Abstract: | Conventional place-based accessibility measures do not take into account travel time uncertainty and the time-varying effects of competition on the demand side. To fill this gap, we extend previous place-based accessibility measure, and propose a place-based space-time utility accessibility evaluation framework for urban area by considering travel time uncertainty and the time-varying effects of competition on the demand side. The accessibility of a location is conceptualized as the space-time utility offered by a set of accessible facilities from the location. To demonstrate the applicability of the proposed framework, a case study using large-scale taxi tracking data and the UGC data in Shenzhen is carried out to analyze the accessibility distribution to food services. The results of the case study indicate that the proposed accessibility measure can evaluate urban accessibility distribution more accurately than the traditional place-based accessibility measure. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《武汉大学学报(信息科学版)》浏览原始摘要信息 |
| 点击此处可从《武汉大学学报(信息科学版)》下载免费的PDF全文 |
