This book explores the mechanisms behind high-speed railway (HSR) traffic accidents caused by natural disasters, employing the concept of "dynamic tracking, situation assessment, and early warning management". It establishes a natural disaster warning system for ensuring the safety of HSR operations, while providing insightful management measures and methods that address the challenges posed by natural disasters. By analyzing the current state and objective circumstances of HSR safety operations, this book distinguishes itself from similar publications both domestically and internationally. It conducts an in-depth analysis of the safe operation of high-speed railways by adopting a systems science approach that effectively merges theory with practical applications. Furthermore, the book explores the developmental trajectory of high-speed railways and investigates the determination of their safe operation. It comprehensively evaluates the safety of high-speed railway operations by employing mathematical theories of uncertainty, subsequently presenting detailed measures to effectively tackle safety concerns related to high-speed railways.