Last-ditch talks have failed to resolve the dispute over pay, jobs and conditions meaning thousands of rail workers will walk out on Tuesday, Thursday and Saturday. The strikes are the biggest outbreak of industrial action on the railways for a generation.
Members of the Rail, Maritime and Transport union at Network Rail and 13 train operators will walk out, with services across the UK starting to be affected from Monday evening. Just one in five trains will operate on strike days, primarily on main lines and only for around 11 hours.
Although talks were held into Monday afternoon no deal was reached. On Tuesday London Underground workers are also on strike.