Satoru MATSUURA Hokkaido Railway CompanyThe purpose of this study is to investigate visual-searching behaviors that are effective for recognizing the extraordinary events based on the eye movements of railway drivers. Track subsidence ahead of drivers was set as an extraordinary event. Two driving scenarios were associated with this extraordinary event, namely high velocity (approximately 90 km/h) and low velocity (approximately 15 km/h). In the high velocity driving scenario, drivers that maintained a longer gaze during each visual search recognized the subsidence easily. In the low velocity driving scenario, drivers that had a wider gazing angle in the horizontal direction during each visual search recognized the subsidence easily.

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