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Trains running between Heathrow Terminal 5 and London Paddington may be cancelled or delayed by up to 5 minutes. Latest information can be found in Status and Disruptions.

Trains running between Bristol Parkway and Gloucester may be cancelled, delayed by up to 10 minutes or revised. Latest information can be found in Status and Disruptions.

Trains between Guildford and Ash may be cancelled, delayed by up to 30 minutes or revised. Latest information can be found in Status and Disruptions.