On Tuesday, employees of Southern rail, who are unionized with Rail, Maritime, and Transport (RMT), will go on strike at 11am over safety being jeopardized as a result of new proposal that includes cost-cutting measures. The strike, which will last 24 hours, has been designed to impact commuter trains in an effort to create the maximum amount of disruption to normal operations. Certain lines will not operate as a result of this strike. The company's new proposal is to switch to driver-only trains, which will no longer make conductors responsible for opening and closing train doors.
See "Southern Rail Passengers Face Two Days of Travel Chaos Due to Strike", Gwyn Topham, The Guardian, April 25, 2016