Have ticket machine manufacturers not considered emergency through ticketing for multiple services (unless such thing can be done already) for single and return fares.

For example, when the bridge collapsed on the Blaydon Highway and passengers had to use other services to Newcastle from the Metrocentre and vice versa particularly on one day when most got terminated there. Could there not have been an option for passengers to buy single and return tickets on the TEN services on board the 6/45/46/47?