Overview
- The report details how a passenger, profoundly intoxicated after a pub shift, fell from Ickenham’s London‑bound platform and lay on the track for about two minutes before a Metropolitan line train passed over them.
- Investigators found the under‑platform ‘survival space’ was obstructed by communication cables in breach of standards, reducing shelter space and likely preventing the person from escaping.
- Visibility factors, including a brightly lit platform against a dark track bed and the passenger’s dark clothing, meant the driver may not have been able to see the person before impact.
- The train’s tripcock triggered only after contact, and the train had already fully passed over the passenger by the time it came to a stop; staff did not notice the person on the track for several more minutes.
- TfL said it supports the findings, has completed an internal review, will strengthen staff guidance and training, and is trialling AI cameras to detect falls, while the RAIB also flagged concerns over delayed post‑incident drug and alcohol testing of staff despite no evidence of operator impairment.