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| 城市公交车微环境对乘客舒适度的非线性影响 | |
| 引用本文： | 张琳,周素红,关美宝,陈菲.城市公交车微环境对乘客舒适度的非线性影响[J].地理科学进展,2021,40(6):967-979. |
| 作者姓名： | 张琳 周素红 关美宝 陈菲 |
| 作者单位： | 1.广东外语外贸大学粤港澳大湾区研究院,广州 510006 2.中山大学地理科学与规划学院,广州 510275 3.广东省公共安全与灾害工程技术研究中心,广州 510275 4.香港中文大学地理与资源管理学系,香港 999077 5.香港中文大学太空与地球信息科学研究所,香港 999077 6.中国城市规划设计研究院深圳分院,广东 深圳 518000 |
| 基金项目： | 国家自然科学基金项目(41871148);国家自然科学基金项目(71961137003);广东省重点领域研发计划项目(2020B0202010002);广东省基础与应用基础研究基金(2020A1515110623);香港研究资助局研究项目(14605920);香港研究资助局研究项目(C4023-20GF) |
| 摘 要： | 公交车是服务居民日常活动一出行的重要微观空间,也是城市公共空间的组成部分.目前,车厢内微环境污染及其对乘客的负面效应已引起广泛关注.然而,国内外鲜少有研究分析公交车微环境对乘客舒适度的非线性影响,也尚未探测各个微环境变量影响舒适度的阈值以及乘客的最佳微环境暴露水平.论文在广州6条典型公交线路上同时收集车内微环境实时监测... |
| 关 键 词： | 微观空间 微环境暴露 舒适度 非线性影响 随机森林 公交车 广州市 |
| 收稿时间： | 2020-08-01 |
| 修稿时间： | 2020-12-22 |
Nonlinear effects of bus micro-environments on passengers' comfort |
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| ZHANG Lin,ZHOU Suhong,KWAN Mei-Po,CHEN Fei.Nonlinear effects of bus micro-environments on passengers' comfort[J].Progress in Geography,2021,40(6):967-979. | |
| Authors: | ZHANG Lin ZHOU Suhong KWAN Mei-Po CHEN Fei |
| Abstract: | Buses play an important role in the daily travel of urban residents. Bus micro-environmental pollution and its adverse impacts on passengers' physical and psychological well-being has become an increasing concern among the general public, researchers, and policymakers. However, few studies have examined the nonlinear effects of bus micro-environments on passengers' comfort, analyzed the threshold values of multiple micro-environmental variables, and ascertained the optimal micro-environmental exposure levels for passengers. In this study, real-time monitoring data of bus micro-environments, questionnaire survey data of 520 passengers, travel characteristics, and environments outside the buses were simultaneously collected on six bus routes in Guangzhou City. Nonlinear regression models constructed by random forest were then employed to explore the relationships between bus micro-environments and passengers' comfort. The results show that in-bus temperature, relative humidity, PM2.5 concentrations, noise, and passenger load have nonlinear effects on the comfort, but the importance and mechanism of each micro-environmental variable in influencing comfort is different. Passengers have a higher degree of comfort when in-bus temperature is 23.5-28.0 ℃, relative humidity is 45%-58%, PM2.5 concentrations are lower than 28 μg/m3, noise level is lower than 75 dB, and passenger load is 8-26 persons. Also, there are some differences between the optimal micro-environmental exposure levels identified in this study and current environmental standards. These findings have theoretical and practical implications for policymakers, transportation planners, and bus operators when improving bus micro-environments and promoting passengers' comfort. |
| Keywords: | micro-space micro-environmental exposure comfort nonlinear effect random forest buses Guangzhou City |
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