Engineering works means no trains between Reading and London Paddington before 11.15am on Sunday, November 24
Engineering works will impact train services near Newbury this weekend.
There will be no trains running between Reading and London Paddington before 11.15am on Sunday (November 24).
After 11.15am, trains will run but services between Paddington and Reading will be reduced as only two out of four tracks will be available.
Replacement buses are planned between Ealing Broadway and Slough on Sunday morning.
Great Western Railway (GWR) has advised customers to check on the day of travel as crew availability will result in additional short-notice cancellations or alterations, especially between London Paddington and Bristol, and local Bristol services, and London Paddington and Devon/Cornwall.
GWR has also stated that customers with rail tickets for Sunday can also use them on Saturday, November 23, or Monday, November 25.
The engineering works are part of Network Rail’s performance improvement plan in the Thames Valley – named Project Brunel – and it includes drainage upgrades for areas of the line that frequently flood, as well as replacing track and sleepers (which support the rails) that have come to the end of their useable life.
Network Rail’s western route director Marcus Jones said: “I’d like to thank passengers in advance for their patience.
“There’s never a good time to close the line, however we do try to ensure that any disruption takes place when fewer people are using the railway, such as at weekends.
“We have made good progress with our Thames Valley improvement plan, although there is more to do.
“These upgrades are essential to our goal of reducing disruption and improving the resilience of this stretch of line into the future.”