Overmorrow Consulting is supporting the Westgo Consortium with Systems Engineering Management and Systems Integration Management on the Western Sydney Airport Metro, SSTOM Tender. The Western Sydney Airport Line will see a new Metro rail line run from St Marys on the existing T1 heavy rail line to the Western Sydney Aerotropolis near Bringelly, via Western Sydney Airport (WSA).

The scope of the SSTOM (Stations, Systems, Trains, Operations and Maintenance) package includes the build of six new metro stations and elements of the surrounding precincts, the stabling and maintenance facility, rail infrastructure and systems required for the supply, commission and operations of the new trains, and run the line when operational.