Rail bosses have pledged to keep as many trains running as possible despite workers downing tools for a 48-hour strike last night.
RMT members stopped at 6.30pm for two days of industrial action over a row with First Great Western (FGW) about cuts to jobs, services and safety.
FGWmanaging director Mark Hopwood insisted that most of the trains through Oxfordshire should run as normal.
Routes from Banbury through Oxford to Didcot Parkway and Reading are expected to run on time, however there will be no FGW services to Weymouth, Portsmouth and Brighton.
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