b'NATIONAL RAILI N T R O D U CT I O NSAFETY DATA SETCollection of the National Rail Safety Data Set (NRSDS) officially commenced on July 1, 2022, and is the source for the data provided in this 20232024 ONRSR Rail Safety Report. While the statistics presented in this reportThis is because a rate uses a denominator to focus on the events of the 20232024 financialremove the influence of variations in the scale of year, the report retains several charts that wererailway operations over time. published in previous years to show the last fiveSee table 7 in Appendix BScope and Methods years incident counts and rates. The introductionfor details on the revised NRSDS. For charts of incident rates provides a more accurate pictureimpacted by changes in definitions, labels or of national safety performance than counts alone.colour changes have been used to indicatethe changes.ONRSR Rail Safety Report720232024'