The railway infrastructure in England and Wales is likely to become less reliable over the next five years, the body responsible for its upkeep has said.
In its
new business plan, external it says a sharp rise in extreme weather events has damaged ageing infrastructure.
Investment in tackling climate change and trying to make the railway more resilient - for example, improving drainage and earthworks - will double under the new plan, to £1.6bn.
Network Rail said it had sought to prioritise investment in weather resilience where possible, but keeping up the pace with available funding would be a "continued risk".
As a result of these factors Network Rail expects a "decrease in asset reliability" over the period of the plan.
Network Rail said it was balancing its expenditure and interventions in order to protect safety, but it expected "a small impact on train performance". Network Rail is looking to make "efficiencies" of £3.4bn over the next five years and the strategic plan said parts of the network which generate less revenue would not be prioritised for investment, as part of "difficult choices and trade-offs".