Hundreds of drivers on the Piccadilly line in London are to go ahead with a strike from Wednesday night over claims of a “comprehensive breakdown” in industrial relations.



Members of the Rail, Maritime and Transport union (RMT) on the line, which services Heathrow airport, will walk out at 9pm for 24 hours, with further action planned after Easter.

The union said no services would be run on the line, one of the busiest on the network.

The RMT said there has been a prolonged period of industrial problems on the line, partly linked to “serious underlying issues” with the age of the trains.

Mick Cash, the union’s general secretary, said: “The hostile and aggressive attitude by tube bosses has collapsed the normal negotiating process and as a result they are wholly to blame for the fact that the strike action goes ahead.

“The wholesale abuse of procedures and agreements by management on the Piccadilly line is rife and amounts to the development of a campaign of bullying, harassment and intimidation that the union will not allow to continue.”

London Underground has said there will be no Piccadilly line service from late evening and all day on Thursday if the strike goes ahead.