United Kingdom, Oct. 15 -- Alstom, global leader in smart and sustainable mobility, has signed a 15-year extension to its Train Services Agreement (TSA) with Greater Anglia in the United Kingdom for the operator's Class 720 Aventra fleet.The contract, valued at approximately 800 million British pounds (947 million euro1), provides continuity for the Aventra fleet and a long-term framework for Alstom, Greater Anglia and future Great British Railways (GBR) to collaborate on performance, reliability and the passenger experience.Under the agreement, Alstom will continue to maintain Greater Anglia's fleet of 133 five-car Class 720 Aventra electric multiple units (EMUs) at Greater Anglia's Seven Kings Depot, ensuring the fleet remains available t...