ScholarWorks@한국철도기술연구원

초록

A quantitative investigation was conducted to assess the effects of train speed and operating environment on signal recognition rates of high-speed train drivers in Korea. Given the high proportion of accidents linked to human error, particularly signal misrecognition, simulator-based experiments were performed with twenty licensed drivers under realistic operating conditions. Speeds of 250, 300, 350, and 400 km/h, various environmental settings (day/night, clear, snow, rain, and tunnel), and signal colors (green and red) were examined. Drivers responded using color-matched buttons, and recognition rates were recorded for each condition. Results indicated that higher speeds reduced signal recognition accuracy, with tunnels and adverse weather further intensifying this decline. Signal color was also influential, with green signals recognized nearly 30% more accurately than red, reflecting human visual sensitivity. Unlike prior survey-based studies, precise experimental data were provided, revealing vulnerability patterns that may inform engineering standards, driver training, and policy for railway safety in Korea. The findings highlight the necessity of continuous empirical evaluation as train speeds and operating environments advance.

키워드