RATP Dev operates and maintains urban transportation systems in 15 countries. RATP Dev demonstrates its extensive and renowned expertise in mobility services, ranging from rail, regional express rail, and streetcar to bus, cable car, and sightseeing. RATP Dev's technical expertise and experience leads in autonomous mobility and tramway operations, and as operator of the Paris network, one of the largest public transportation networks in the world. RATP Group is a world leader in fully driverless metro operations with a portfolio of 10 lines. In Australia, RATP Dev is the operator and maintainer of Sydney Metro Western Sydney Airport line.