Commuters across southern England are braced for a chaotic rush hour after a day of disruption and major delays on train services caused by a fault in the radio system used for communication between drivers and signallers.
Fault Resolved But Delays Persist
The fault, reported shortly before 9 am on Thursday, led to cancellations and delays of up to 90 minutes across several operators. While the radio issue has been resolved, networks are still recovering, and National Rail Enquiries has warned of major disruption to some services across the south of England for the rest of the day.
Operators affected by the fault include CrossCountry, Gatwick Express, Great Western Railway, London Overground, Southern, South Western Railway (SWR), and Thameslink.
Waterloo in Disarray
Our travel correspondent Simon Calder reports that London Waterloo, the busiest station in the UK for normal trains, saw delays of over an hour beginning around 9 am. Trains from Reading, Portsmouth, and Honiton arrived more than an hour behind schedule. One train from Windsor, due at 9:23 am, finally arrived at 11:09 am, nearly two hours late.
Many trains were cancelled due to rolling stock, drivers, and guards being out of position. Even with the system-wide fault now fixed, delays and cancellations are likely to continue into the afternoon and possibly affect the evening rush hour. The compensation bill for delay repay is expected to run into hundreds of thousands of pounds on South Western Railway alone.
Operator Updates
Gatwick Express
Gatwick Express services are now likely to run to and from Brighton rather than terminating at Haywards Heath, the operator said.
Thameslink
Thameslink has stated that the disruption has ended. The operator advised passengers delayed by 15 minutes or more to apply for Delay Repay compensation.
Great Western Railway
Great Western Railway confirmed that communication systems have been resolved and services are no longer affected.
Passenger Rights
Passengers facing long delays or cancellations are entitled to partial or full refunds, though rules vary by operator. For most rail firms, a one-hour delay qualifies for a full refund, but policies differ for operators like Grand Central and Eurostar.
National Rail Enquiries has advised that passengers affected by delays can use tickets on alternative routes without additional cost, including Thameslink services between London and Brighton and Southern services between London and Haywards Heath.
A Network Rail spokesperson apologized for the disruption, stating that staff worked to resolve the fault and train services are now returning to normal.



