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A spokesperson for rail industry body the Rail Delivery Group said: "Although four out of five trains arrived as planned over the last month, we know that severe weather disrupted many passengers' journeys and we apologise to anyone who was affected."
"Throughout the recent bad weather and over Christmas thousands of rail staff were out working to remove hundreds of trees that had fallen onto the railway, repair damage to overhead wires and provide information to passengers to help them get to where they wanted to go.
"During periods of severe weather our main focus is to ensure the safety of passengers and staff, but the industry remains committed to investing in improving performance so that passengers see fewer delays and are kept well informed."