the 2010s to align with the 2013 PTV Development Plan. A new station at Cardinia Road opened in 2012 situated between Officer and Pakenham stations. This is the first infill station to open on the line since 1927, with an additional station at Pakenham East expected to open in 2024 in conjunction with level crossing removal works. In 2018, the Pakenham East Depot opened for the newly acquired High Capacity Metro Trains. This depot has stabling capacity for 30 seven-car trains with train maintenance, driver training, and washing facilities present onsite. Future Metro Tunnel The 2012 Network Development Plan identified the need for a north-south tunnel connecting the Cranbourne and Pakenham lines to the Sunbury line. In 2017, the Metro Tunnel began construction, involving the construction of five new underground stations, twin tunnels, and other associated infrastructure improvements. Leaving the exisiting Pakenham line alignment before South Yarra station, new stations will be built at Anzac, Town Hall (with connections to Flinders Street station), State Library (with connections to Melbourne Central), Parkville, and Arden, before continuing onto the Sunbury line. These works will be completed by 2025, and upon completion, will create a singular rail line from Cranbourne and Pakenham to Sunbury and Melbourne Airport (from 2029). Melbourne Airport rail The Melbourne Airport rail link will involve the construction of a line from Sunshine to a new station at Melbourne Airport. Connected via the Metro Tunnel, services will operate from the Cranbourne and Pakenham lines through the tunnel before splitting off at Sunshine to either Sunbury or Melbourne Airport. Construction of the line will involve the renovation of Sunshine station to allow for additional platforms, construction of new track, and the addition of two new stations at Keilor East and Melbourne Airport. Construction started in 2022 with services expected to begin in 2029. Pakenham East line extension Announced in 2021, the Pakenham line will be extended one stop east to Pakenham East. The extension will involve the removal of the Main Street and Racecourse Road level crossings, the elevation of Pakenham station, the construction of a new station at Pakenham East, and other associated safety and landscape works. These works will be undertaken as part of the Level Crossing Removal Project and will be completed by 2024. Level Crossing Removals The Level Crossing Removal Project has announced the removal of all 22 remaining level crossings on the Pakenham line, to be