Virgin Trains East Coast has told customers there will a “near normal” timetable during the strike action announced by RMT union.
Workers are set to walkout for 48 hours from April 28 in a dispute over the role of guards on trains and at stations.
However, Virgin Trains said its detailed contingency plans mean a near normal timetable will run.
The RMT wants a specific assurance that a new position of train manager will retain the safety- critical roles and training currently held by train guards.
Virgin said in a statement: "The only response the company has offered is to repeat the vague and non-committal mantra of 'within our discussions we have confirmed that the safety-critical duties of the guard will remain on the train'.
David Horne, managing director for Virgin Trains East Coast said: “We have worked hard to ensure there are comprehensive contingency plans in place and I want to reassure our customers that our timetable will be almost completely unaffected during this walk-out, as well as during any subsequent strikes by the RMT. Passengers can book and plan their journeys as normal and with confidence.
RMT general secretary Mick Cash added: "It is simply appalling that Virgin East Coast have refused to give the most basic assurances on the safety-critical role of the guard on their trains continuing into the future."
Sign up to BBT’s twice-weekly newsletter