Research on the comfort degradation mechanism of high-speed railway passengers:a field study using dynamic interface pressure

作     者：Yong Peng Dayan Sun Chaojie Fan Zhifa Wu Shengen Yi Yuexiang Peng Yingjun Liu 

作者机构：Key Laboratory of Traffic Safety on Track of Ministry of EducationSchool of Traffic&Transportation EngineeringCentral South UniversityChangsha 410075HunanChina Joint International Research Laboratory of Key Technology for Rail Traffic SafetyCentral South UniversityChangsha 410075HunanChina Research Laboratory of Hepatobiliary Diseases General Surgical DepartmentThe Second Xiangya HospitalCentral South UniversityChangsha 410011HunanChina Hunan Industry PolytechnicChangsha 410208HunanChina Locomotive DepartmentChina Railway Guangzhou Group Co.Ltd.Guangzhou 510088GuangdongChina. 

出 版 物：《Transportation Safety and Environment》 (交通安全与环境（英文）)

年 卷 期：2022年第4卷第4期

页      面：51-63页

核心收录：

学科分类：12[管理学] 0202[经济学-应用经济学] 02[经济学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 020205[经济学-产业经济学] 08[工学] 082303[工学-交通运输规划与管理] 0823[工学-交通运输工程] 

基　　金：the National Natural Science Foundation of China(Grant No.52075553) the Hunan Science Foundation for Distinguished Young Scholars of China(Grant No.2021JJ10059) the School Enterprise Cooperation Program of Central South University(Grant No.2021XQLH011) 

主　　题：High-speed railways pressure distribution seat comfort machine learning sitting fatigue 

摘      要：Discomfort caused by long-term sitting decreases the passenger experience and may lead to musculoskeletal diseases, and this hasbecome one of the main problems for passengers of high-speed railways. However, the comfort degradation mechanism during longtermsitting in high-speed railways is still unknown. This study aimed to reveal passengers’ sitting comfort degradation mechanismin high-speed railways. By carrying out long-term sitting tests on high-speed trains running on the Shanghai-Kunming line, the dynamicinterface pressure and subjective comfort including overall and regional comfort of seven participants were *** models and statistical analysis methods were combined for data analysis to reveal the effect of regional comfort and thecontribution of sitting duration during the process of sitting comfort degradation. The results show that overall comfort is most significantlyinfluenced by the comfort of the shoulders, waist and buttocks. The seats play different roles before and after 20 minutesduring long-term sitting and there is a lag between the fatigue occurring and being offset. Therefore, the structure of seats affectsoverall comfort by affecting important regional comfort, and a long-term sitting test is necessary for accurate seat assessment. Thecomfort degradation mechanism can be used to define standards for long-term sitting comfort or provide guidance for seat evaluation,and the design and evaluation plan mentioned in this article for second-class seats can be applied to other cases with limitedaccommodating space.