Train staff at Greater Anglia are to stage two 24-hour strikes in worsening disputes over the role of guards and driver-only trains.
The strikes by members of the Rail, Maritime and Transport Union will take place on October 3 and 5.
Four rail companies will be affected by the strike. The others are Southern, Merseyrail and Arriva Rail North.
Greater Anglia say they're very disappointed by the strike ballot but hope to run a full service if industrial action goes ahead.
Mick Cash, RMT general secretary, said the union wanted to resolve all the disputes with talks including the Department for Transport.
The RMT says both drivers and guards voted by a nine to one for strike action on a 90 per cent turnout. The drivers vote was two to one for action on a 75% turn out.