HS1 Data assurance

Tender description

What does the project set out to achieve? The aim of the data assurance review of HS1 Ltd is to assess the quality, accuracy and reliability of the quarterly data supplied by HS1 Ltd. This will done by performing: • A high-level review of the performance measures - to include confidence grading and progress against the 2014 recommendations; • A high-level review of asset management measures - to include confidence grading and provide assurance that the improvements have been maintained and are continually improving; • A review of the asset register – to provide assurance that the high level of quality is maintained and is continually improving. What are the key tasks In undertaking this project, we would expect the consultant to deliver the following: • A high-level assessment of the following quarterly operational performance data: a. Total number of trains timetabled – this would include progress against the 2014 recommendation which was to review the methodology for extracting ‘Trains run’ data using train service codes b. Total number of trains delayed c. Number of trains delayed by an incident wholly or mainly attributable to HS1 d. Number of trains delayed by an unidentifiable incident - this would include progress against the 2014 recommendation which was to review the procedures for allocating a ‘prime’ cause for trains cancelled for more than one primary reason/ cause code, and determine how these are reported. This should have been incorporated in the revised methodology for the HS1 Performance floor report. • A high-level assessment of the following quarterly asset management data: a. Plan attainment (backlog) b. Overall fault levels c. Track quality-induced speed restrictions d. Broken rails e. Service-affecting defective rails