Southern will introduce a new summer timetable later this month.
The rail operator says the changes will ‘improve performance’ and will come in to effect on Sunday May 17.
As a result, Southern is warning passengers to check their journeys before they set out to make sure there has not been changes to the train times.
A spokesperson from Southern said, “We’re making more changes than usual to further improve performance on the Southern network.
“These changes include timing some trains so they leave a little earlier, so we are advising passengers to check before they travel.”
Southern has admitted the works at London Bridge had an adverse effect on performance back in January.
The new timetable incorporates further changes to train times which are designed to ease congestion and reduce the risk of small delays having a major knock-on effect to other services.Southern Rail spokesperson
The spokesperson said, “In January, the rebuilding of London Bridge station as part of the Thameslink Programme reached a stage where only three tracks were available to us to operate our timetable. Unfortunately, the reduced infrastructure was unable to cope with the number of trains, which in turn had an adverse effect on performance.
“In response, Southern made changes to some peak train times into and out of London Bridge which brought about an improvement to performance overall.
“The new timetable incorporates further changes to train times which are designed to ease congestion and reduce the risk of small delays having a major knock-on effect to other services.”
Rail passengers can check train times and make a note of the changes in a number of ways.
Timetable information is now available online at www.southernrailway.com.
There is also an app called Southern On Track which gives passengers up to date information about services.
Passengers can also contact National Rail Enquiries by telephone on 08457 48 49 50 24 hours a day.
Posters and pocket timetables will also be available in stations across the network soon.