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Applying Hierarchical Task Analysis to Improve the Safety of High-Speed Railway: how Dispatchers can better handle the Breakdown of Rail-Switch
wang ziyue1,2; zhangjingyu1,2; sunxianghong1,2; guo zizheng3
2021-07
Correspondent Emailzhangjingyu@psych.ac.cn (zhangjingyu) ; sunxh@psych.ac.cn (sunxianghong)
Conference NameHCII
Source PublicationHCII
Pages1-8
Conference Date2021-07
Conference Placewashigton
Abstract

The train dispatchers of high speed railways (HSR) play an important role in guarantee the safety and efficiency of railway traffic. However,the task properties and potential human errors lied in the dispatching work is not fully understood.In this study, we intended to make atask analysis and examinethe possible human errors in HSRdispatchers' handling of the rail-switch breakdown, a relatively common equipment failure with a serious impact.

Toachieve these goals, we conducted semi-structured interviews with five experienced traindispatchers working on the newest centralized traffic control system of China’s HSR. We used the hierarchical task analysis (HTA) to understand their critical operations during the handling of rail-switch breakdown. Then we used the systematic human error reduction and prediction approach (SHERPA) to analyze possible human errors throughout the entire process.

We found that thisprocessinclude detecting the failure, notifying the train drivers to stop or slow down, attempting reinitiation, rescheduling to slow down the traffic, coordinating the repairment, and resuming the normal traffic.The most common human errors include: forget certain operations, conduct wrong operations, and failure to communicate specific information.

Wefurther discussed how these errors should be prevented.

KeywordChina's high speed railway Dispatcher Hierarchical Task Analysis Human errors Breakdown of r ail s witch
Document Type会议论文
Identifierhttp://ir.psych.ac.cn/handle/311026/39457
Collection社会与工程心理学研究室
Affiliation1.Institute of Psychology, Chinese Academy of Sciences, Beijing, China
2.Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
3.School of Transportation and Logistics, Southwest Jiaotong University, Che ngdu, China
Recommended Citation
GB/T 7714
wang ziyue,zhangjingyu,sunxianghong,et al. Applying Hierarchical Task Analysis to Improve the Safety of High-Speed Railway: how Dispatchers can better handle the Breakdown of Rail-Switch[C],2021:1-8.
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