Mendip Rail
Last updated 25 May 2026
Aggregates specialist carrying limestone from the Mendip quarries to construction sites across Southern England and the Midlands.
| Active since | 1993 |
| Trailing 12-period A2F | Fewer than 12 closed periods of clean data on record — available once the pipeline reaches 12 complete periods. |
| Schedule 8 — CP7 cumulative | Available under commercial licence. CP7 rates £25.81/min NR-to-FOC, £51.98/min FOC-to-NR (2× asymmetry). Bilateral net position is the licensed product — see methodology. |
| Fleet specialisation | Aggregates (Mendip limestone — Whatley, Merehead, and Torr quarries) |
| Parent / ownership | Hanson UK and Aggregate Industries (joint venture) |
Latest period summary
Mendip Rail ran 419 freight services in Period 2 2026-27 at 92% A2F punctuality, against a national freight mean of 90% over 12,042 services. A2F was effectively unchanged on Period 13 2025-26 (92%); the 90% Wilson intervals overlap. PRELIMINARY at T+2; FINAL re-publication at T+35 after Network Rail's batch correction. Schedule 8 monetises every minute of attributable delay at CP7 rates: £25.81/min (NR-to-FOC) and £51.98/min (FOC-to-NR).
Reports
Corridors served
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
Mendip Rail is a joint venture between Hanson UK and Aggregate Industries that exists solely to haul limestone from the Mendip quarries in Somerset. Trains run from Whatley, Merehead, and Torr quarries to terminals across Southern England and the Midlands. In Period 2 2026-27 it recorded 283 non-cancelled services, with the Northern Ports & Transpennine and Great Eastern Main Line corridors carrying the most movements by count.