ASLEF union strike action and overtime bans will affect the South Western Railway network in September and October.
An extremely limited service will operate on a small number of lines, with the majority of the network closed, on Saturday 30 September and Wednesday 4 October.
On Friday 29 September and Monday 2, Tuesday 3, Thursday 5 and Friday 6 October, a normal weekday timetable will operate with a small number of cancellations.