The Melton railway line is the greater-metropolitan section of the Ballarat line in Victoria, Australia. It is incorporated into Melbourne's suburban railway network. Services are provided by V/Line as part of the Ballarat regional line service. The line runs between Southern Cross station in the CBD and Melton. It branches from the Sunbury line at Sunshine railway station, where it falls into myki ticketing Zone 2. It consists of dual track until just west of Deer Park railway station where it becomes a single bi-directional track. There is another stretch of double track close to Rockbank railway station to facilitate the passing of trains.
The Victorian Transport Plan released in December 2008 proposed the progressive upgrade of the Melton line to support future urban development in the corridor. The Regional Fast Rail project to Ballarat has been completed. The construction of the new Caroline Springs railway station (Ravenhall) commenced in August 2015, and is scheduled for completion in 2016. Another new station is planned for a new outer suburb of Toolern, between the existing Rockbank and Melton stations, as part of the Toolern urban development. However, no date for this new station has yet been determined. The PTV Network Development Plan published in 2013 provides for the progressive duplication of the remaining section of the line to improve service frequency, before ultimate electrification. It was expected that the number of services would double following the electrification of the Sunbury line and re-allocation of diesel rolling stock to Melton.
Rail terminology is a form of technical terminology. The difference between the American term railroad and the international term railway (used by the International Union of Railways and English-speaking countries outside the US) is the most significant difference in rail terminology. There are also others, due to the parallel development of rail transport systems in different parts of the world.
Various terms are presented here; where a term has multiple names, this is indicated. The abbreviation "UIC" refers to standard terms adopted by the International Union of Railways in its official publications and thesaurus.