Spurred by fall in passenger numbers following the COVID-19 pandemic, railways today have made rapid progress in improving operational efficiency and labor saving measures. DX (digital transformation) technology, which has been applied to automatic train operation, inter alia, is therefore attracting attention. Another focal point for railways is the realization of global decarbonization, illustrated by "2050 Carbon Neutral" goal declared by the Suga Cabinet and "COP26." This paper introduces the outlines of three technologies related to these topics, namely, a "Method for evaluating wheel slide protection (WSP) performance by hybrid simulator," a "Method applying neural networks to detect abnormal noise during train operation," and "High efficiency of diesel electric railcars."
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