基于智能手机的公交运行舒适性测度指标研究
发布时间:2018-01-09 14:32
本文关键词:基于智能手机的公交运行舒适性测度指标研究 出处:《同济大学学报(自然科学版)》2017年08期 论文类型:期刊论文
更多相关文章: 公交舒适性指标 智能手机 主成分法 傅立叶变换 Logit回归
【摘要】:为量化分析公共汽车运行过程中行驶平顺性以及车体振动状态对乘车舒适性的影响.以智能手机作为数据采集终端,通过对速度、经纬度数据的统计分析构建表征平顺性的多维变量,并以主成分分析法降维获得平顺舒适性指标;另一方面,通过对高频采集的加速度数据进行傅氏变换构建振动舒适性指标.该研究弥补了以往研究中忽略车辆运行状态对舒适性影响的不足.通过多项Logit回归法分析调查数据表明,该研究基于智能手机采集数据所构建的舒适性测度指标值能客观反映乘客对公交运行状态的舒适性主观感知.
[Abstract]:In order to analyze quantitatively the influence of ride comfort and the vibration state of the car body on the ride comfort during the running of the bus, the smart phone is used as the data acquisition terminal and the speed pair is adopted. The statistical analysis of longitude and latitude data is used to construct the multi-dimensional variable to characterize the ride comfort, and the principal component analysis (PCA) is used to reduce the dimension to obtain the comfort index. On the other hand. The vibration comfort index is constructed by Fourier transform to the acceleration data collected at high frequency. This study makes up for the deficiency of neglecting the influence of the vehicle running state on the comfort in the previous research. The multiple Logit regression method is used to construct the vibration comfort index. Analysis of survey data suggests. Based on the data collected by smart phone, the comfort measure index can objectively reflect the subjective perception of passengers' comfort to the running state of public transportation.
【作者单位】: 同济大学道路与交通工程教育部重点实验室;同济大学交通运输工程学院;
【基金】:国家自然科学基金(2012AA112306)
【分类号】:U491.17
【正文快照】: 优先发展城市公共交通,改善公共汽车服务质量是吸引乘客乘坐公共交通出行,缓解交通拥堵的重要途径.然而,我国大部分城市公交出行分担率只在10%左右,特大城市大约能达到20%,但是比率依然很低.公交分担率一直无法提高的主要原因在于服务水平低,难以满足乘客需求.因此,量化评价公,
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