Abstract:Research purposes: Track quality index has been widely used in railways maintenance in the world, which is an important index to evaluate the status of track irregularity. The calculation methods of the track quality index of China, United Kingdom, United States, Japan, Canada, India and Poland are introduced, and the characteristics, similarities and differences of the track quality indexes of these countries are compared. With some track measured data, the sensitiveness of track quality index on local fluctuation and single irregularity defect is performed. Research conclusions: (1) The standard deviation is chosen as the basic statistical indicator of track irregularity in most of the countries, and there is a little difference for the track quality index calculation methods in different countries. (2) Compared with the other methods, Chinese TQI index, Polish J index and American TRI index can capture the track irregularity local fluctuation, which have strong sensitivity to local fluctuation. (3) For comprehensive track quality index, Chinese TQI index and Polish J index can reflect the effect caused by single irregularity defect, which have strong sensitivity to geometry defect. (4) The research conclusions are of great significance for guiding railway maintenance and improving quality criteria.
王英杰, 楚杭, 时瑾, 张雨潇, 康彦波. 世界各国铁路轨道质量指数对比研究[J]. 铁道工程学报, 2022, 39(7): 30-35.
WANG Yingjie, CHU Hang, SHI Jin, ZHANG Yuxiao, KANG Yanbo. Comparative Research on the Railway Track Quality Index in Different Countries. Journal of Railway Engineering Society, 2022, 39(7): 30-35.
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