“We have proven we can run a good service during a strike and are quite prepared to do it again if the RMT executive continues along its destructive path of strikes."
Office-based workers, including Mr Greenfield, were redeployed as on-train ticket inspectors and platform customer service agents over the two days.
In total, 39,000 fares were sold, but there were at least 5,000 unticketed customers travelling each day who rode for free because reservist staff simply could not get around everyone.
Mr Greenfield concluded: “It is safe to say we transported 50,000 people during the strike - 47 per cent more than when we are running a normal number of trains, every 15 minutes rather than every 30.”