RMT members at Network Rail and UK train operators will go on strike on Wednesday, July 27.
There are very few trains, so crowding and delays are to be expected.
There is no service on many lines south of London, and the network has a late start (7.30am or later) and early finish (from as early as 4.30pm to 6.30pm).
Anyone attempting to travel should look into the first and last trains for their specific station.
Late start-up beginning around 7.15 a.m. the following day (28 July), as well as a modified service
Due to next week’s strike by RMT members at Network Rail and UK train operators, passengers should only travel on the Southern, Great Northern, and Thameslink on Wednesday, July 27 and the morning after.
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Govia Thameslink Railway (GTR) will operate the same service plan as during the previous June strikes, and warns that there will be very few trains, with crowding expected, particularly on last trains, and possible delays. Although Gatwick Express will not operate, the airport will have a limited Southern and Thameslink service.