Spatial Distribution of Subgrade Defect Occurrence​s in China’s High-Speed Railways​

This is a comprehensive georeferenced dataset that encompasses defect records extracted from peer-reviewed literature published between 1999 and 2023 in China. Our investigation includes both Chinese and English journal articles, conference papers, and dissertations. Rigorous quality control procedures were implemented to eliminate duplicate data and ensure the accuracy of the dataset. The resultant dataset consists of georeferenced records for eight different defects, spanning across 661 locations and categorized at various scales, ranging from provinces to townships. This new dataset provides an up-to-date map of subgrade defects affecting high-speed railways in China. It could serve as a valuable resource, facilitating subsequent operational risk evaluations and the prediction of subgrade performance.