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NASA-TLX 방법에 의한 KTX 운전 직무부하 분석
정원대(Jung Wondea),고종현(Ko Jong-Hyun),박진균(Park Jinkyun),곽상록(Kwak Sang-Log),임승수(Lim Seoung-Su) 한국철도학회 2006 한국철도학회 학술발표대회논문집 Vol.- No.-
Human factors still plays a significant role in railway accidents. The accidents often resulted from multiple causes of hardware failures and human errors. So to ensure the safety of railway operations, human error should be effectively prevented and managed. Among several factors influencing human performance, task load (or task complexity) is well known as a major contributor to human error. In order to reduce the potential of human error, a systematic analysis should be undertaken to evaluate task load and to reduce it by modifying task process and/or education&training. In this paper, we proposed a systematic framework for railway industry to perform task analysis and to evaluate task load, and applied it to KTX operational tasks. According to the application study, we identified 14 generic task types of KTX operation. And also this paper shows the quantitative task load of those generic tasks which were analyzed by NASA-TLX method.