Machine learning noise exposure detection of rail transit drivers using heart rate variability  

作　　者：Zhiqiang Sun Haiyue Liu Yubo Jiao Chenyang Zhang Fang Xu Chaozhe Jiang Xiaozhuo Yu Gang Wu 

机构地区：[1]School of Transportation and Logistics,Southwest Jiaotong University,Chengdu 611756,China [2]Lanzhou Rail Transit Co.,Ltd.,Lanzhou 730000,China [3]Sichuan Tourism University,Chengdu 610100,China [4]PagerDuty,Inc.905 King StW,Toronto,ON M6K 3G9,Canada

出　　处：《Transportation Safety and Environment》2024年第2期122-132,共11页交通安全与环境（英文）

基　　金：supported by the Sichuan Mineral Resources Research Center(Gr ant No.SCKCZY2023-ZC010);the Gansu Tec h-nological Innovation Guidance Plan(Grant No.22CX8JA142);the Sc hool Enter prise Cooperation Program of Southwest Jiao-tong Univ ersity(Grant No.LG-YY-CW-2020010);the Open Fund of Key Laboratory of Flight Techniques and Flight Safety(Grant No.FZ2021KF05);the Key Research Base of Humanistic and Social Sciences of Deyang-Psychology and Behavior Science Research Center(Grant No.XLYXW2023202).

摘　　要：Previous studies have found that drivers’physiological conditions can deteriorate under noise conditions,which poses a potential hazard when driving.As a result,it is crucial to identify the status of drivers when exposed to different noises.However,such explo-rations are rarely discussed with short-term physiological indicators,especially for rail transit drivers.In this study,an experiment involving 42 railway transit drivers was conducted with a driving simulator to assess the impact of noise on drivers’physiological responses.Considering the individuals’heterogeneity,this study introduced drivers’noise annoyance to measure their self-noise-adaption.The variances of drivers’heart rate variability(HRV)along with different noise adaptions are explored when exposed to different noise conditions.Several machine learning approaches(support vector machine,K-nearest neighbour and random forest)were then used to classify their physiological status under different noise conditions according to the HRV and drivers’self-noise adaptions.Results indicate that the volume of traffic noise negatively affects drivers’performance in their routines.Drivers with different noise adaptions but exposed to a fixed noise were found with discrepant HRV,demonstrating that noise adaption is highly associated with drivers’physiological status under noises.It is also found that noise adaption inclusion could raise the accuracy of classifications.Overall,the random forests classifier performed the best in identifying the physiological status when exposed to noise conditions for drivers with different noise adaptions.

关 键 词：noise exposure detection noise adaption heart rate variability(HRV) machining learning simulator experiment 

分 类 号：U491.25[交通运输工程—交通运输规划与管理]