Midland Main Line
Last updated 25 May 2026
London St Pancras to Sheffield via Leicester, Derby, and Chesterfield — aggregates, intermodal and steel traffic through the East Midlands.
| NR route | East Midlands |
| Route chain | London St Pancras – Bedford – Kettering – Leicester – East Midlands Parkway – Chesterfield – Sheffield |
| Key constraints | Leicester capacity; Trent Junction; Chesterfield approaches |
| Trailing 12-period A2F | Fewer than 12 closed periods of clean data on record — available once the pipeline reaches 12 complete periods. |
Latest period summary
Midland Main Line recorded 77% A2F punctuality in Period 2 2026-27 (26 April – 23 May 2026) on 1,169 freight services, up 1 percentage point from 76% in Period 1 2026-27 on a smaller denominator. The intervals overlap with the prior period. PRELIMINARY at T+2; FINAL re-publication at T+35 after Network Rail's batch correction.
Reports
Operators active
Methodology & sources
All figures derive from Network Rail's NROD TRUST feed, processed via the Gauge Intelligence ingest pipeline. Period definitions, A2F (Arrival to Fifteen), the Wilson 90% interval, daily anomaly rules, cross-view reconciliation, and delay attribution are documented at:
Data window — period boundaries and the data-as-of cutoff
League tables — cross-view reconciliation across the four analytical views
Anomaly detection — daily A2F SPC rules
Delay attribution — DAPR cause-code breakdown
Forecasting — prediction intervals and possession-exposure estimates
The Midland Main Line carries aggregates from the East Midlands quarries, steel flows around Sheffield and Rotherham, and intermodal services between the London area and South Yorkshire. The corridor interchanges with the South & West Yorkshire corridor at Sheffield.
Capacity at Leicester and around the Trent Junction near East Midlands Parkway is the principal constraint on freight pathing.