Industrial action by train drivers and engineering work will disrupt Greater Anglia train services this month. The most turmoil for travellers will be on Tuesday, May 7, when a full strike by ASLEF members takes place. A very limited train service will operate only on five core Greater Anglia routes and, with the exception of the Stansted Express service, for a limited period. Trains will run between Cambridge and London Liverpool Street approximately every two hours. The first West Anglia line train will leave Cambridge at 8.20am and the last train will depart from the university city at 5.20…