Transport Secretary Chris Grayling's challenging RMT union bosses to drop their opposition to driver-only operated trains.
Strikes over the issue saw rail services heavily disrupted last month, with more industrial action planned in a week's time.
Mr Grayling's told Tower the union is being unreasonable:
"There will be new technologies there will be new ways of working but nobodies jobs in danger, nobodies threatening to cut any jobs all the staff affected on Mersey Rail and all the staff at Northern have been told they've got longterm futures in the industry,"
The next walk out is scheduled for Friday April the 28th as the row over work conditions rumbles on, Mr Grayling says the union should be backing changes to rail services instead of striking :
"This is about investment in the railways; more trains, new trains, more seats and unions should be working with us to deliver that not trying to resist it."