curves from the Melbourne central business district to its terminus in Sandringham. The route is long and is predominantly doubled tracked, however between Flinders Street station and Richmond, the track is widened to 12 tracks, narrowing to 6 tracks between Richmond and South Yarra before again narrowing to 2 tracks between South Yarra and Sandringham. After departing from its terminus at Flinders Street, the Sandringham line traverses mainly flat country with few curves and fairly minimal earthworks for most of the line. However, sections of the line have been elevated or lowering into a cutting to eliminate level crossings. Despite historical removals, there are numerous level crossings still present on the line with no current plans to remove them. The line follows the same alignment as the Cranbourne, Pakenham, and Frankston lines with the four services splitting onto different routes at South Yarra. The Sandringham line continues on its south eastern alignment, whereas the Cranbourne, Pakenham, and Frankston lines takes an eastern alignment towards their final destinations. From Balaclava, the line is never more than ~ from the eastern shore of Port Phillip. All of the rail line goes through built-up suburbs towards its terminus in Sandringham Stations The line serves 14 stations across of track. The stations are a mix of elevated, lowered, and ground level designs. The majority of stations are at ground level, with elevated or lowered stations constructed in conjunction with historical level crossing removals works. Infrastructure Rolling stock The Sandringham line uses Siemens Nexas electric multiple unit (EMU) trains operating in a two three-car configuration, with three doors per side on each carriage and can accommodate of up to 432 seated passengers in each six car configuration. The trains were originally built between 2002 and 2005 with a total of 72 three-car sets constructed. The trains are shared with 7 other metropolitan train lines and have been in service since 2003. Alongside the passenger trains, Sandringham 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