A suggestion that rail fare and wage will increase needs to be linked to a decrease inflation measure has sparked an indignant response from unions.
Transport Secretary Chris Grayling needs future will increase to be primarily based on the Client Value Index, moderately than the present, larger Retail Value Index.
The RMT union accused him of attempting to impose a “pay cap” on its members.
It comes on the day that the federal government publishes the most recent RPI determine, which is able to resolve rail fares from January.
Beneath the present system, July’s RPI units the utmost rise for regulated fares in January.
That determine, which might be introduced at 0930 BST, is anticipated to be about 3.5%.
Mr Grayling mentioned he needed to see “decrease ranges of will increase for passengers in future”.
He additionally mentioned that, if a decrease measure of inflation is used to calculate ticket worth will increase, then it must also be used for prices, together with annual rises to staff’ salaries.
In response, RMT basic secretary Mick Money mentioned: “If Chris Grayling significantly thinks that entrance line rail staff are going to pay the worth for his gross incompetence and the greed of the personal prepare firms he is acquired one other factor coming.
“This can be a basket case authorities and a lame duck transport secretary persevering with all-out struggle on workers and passengers alike.
“RMT will battle any try to impose a pay cap on our members in a drive to guard personal prepare firm earnings.”
In the meantime, RMT is organising protests on Wednesday outdoors stations in London, Birmingham, Cardiff, Leeds and Edinburgh in opposition to fare rises.
The union claims passengers are paying “via the nostril” for overcrowded providers.
Analysis discovered the price of rail journey has elevated greater than twice as quick as wages since 2008.
The TUC mentioned fares have risen by 42% over the previous 10 years, whereas nominal weekly earnings have solely grown by 18%.