operating in a seven-car configuration, with three doors per side on each carriage and can accommodate of up to 1,380 passengers in each train-set. Shared with the Pakenham, Sunbury, and Airport lines, the rolling stock will consist of 70 High Capacity Metro Trains (HCMT), once fully delivered. They are built in Changchun, China, with final assembly occurring in Newport, Melbourne, by Evolution Rail, a consortium composed of CRRC Changchun Railway Vehicles, Downer Rail and Plenary Group. Previously, the Cranbourne line was served by a fleet of Comeng and Siemens Nexas trains. The oldest Comeng trains (stage 1 and some stage 2) have been retired and scrapped as part of the HCMT introduction, however, some of these trains have been displaced onto other Melbourne metropolitan lines. Alongside the passenger trains, Cranbourne line tracks and equipment are maintained by a fleet of engineering trains. The four types of engineering trains are: the shunting train; designed for moving trains along non-electrified corridors and for transporting other maintenance locomotives, for track evaluation; designed for evaluating track and its condition, the overhead inspection train; designed for overhead wiring inspection, and the infrastructure evaluation carriage designed for general infrastructure evaluation. Most of these trains are repurposed locomotives previously used by V/Line, Metro Trains, and the Southern Shorthaul Railroad. Accessibility In compliance with the Disability Discrimination Act of 1992, all stations that are new-built or rebuilt are fully accessible and comply with these guidelines. The majority of stations on the corridor are fully accessible, however, there are some stations that haven't been upgraded to meet these guidelines. These stations do feature ramps, however, they have a gradient greater than 1 in 14. Stations that are fully accessible feature ramps that have a gradient less than 1 in 14, have at-grade paths, or feature lifts. These stations typically also feature tactile boarding indicators, independent boarding ramps, wheelchair accessible myki barriers, hearing loops, and widened paths. Projects improving station accessibility have included the Level Crossing Removal Project, which involves station rebuilds and upgrades, individual station upgrade projects, and associated Metro Tunnel works. These works have made significant strides in improving network accessibility, with more than 66% of Pakenham line stations classed as fully accessible. This number is expected to grow within the coming years, as a network restructure associated with the opening of the Metro Tunnel is completed by 2025. Signalling Since its re-opening in 1995, the Cranbourne line