Network Rail data subject to change

摘要

Readers should note that our PPM tables are based on the final industry figures. Network Rail has begun releasing performance statistics shortly after the end of a period, often based on unvalidated, provisional data that is subject to amendment.rnNR's announcement on May 12 of the PPM scores for Period 1 duly noted: 'these figures represent provisional data for the period and individual operators' performance data may vary slightly from the full period performance report that Network Rail publishes on its website around one month after period end'.