Transport
Victoria has the highest population density in any state in Australia, with population centres spread out over most of the state.
The Victorian road network services the population centres, with highways generally radiating from Melbourne and other major cities and rural centres with secondary roads interconnecting the highways to each other. Many of the highways are built to freeway standard ("M" freeways), while most are generally sealed and of reasonable quality.
Rail transport in Victoria is provided by several private and public railway operators who operate over government-owned lines. Major operators include: Metro Trains Melbourne which runs an extensive, electrified, passenger system throughout Melbourne and suburbs; V/Line which is now owned by the Victorian Government, operates a concentrated service to major regional centres, as well as long distance services on other lines; Pacific National, CFCL Australia which operate freight services; Great Southern Rail which operates The Overland Melbourne—Adelaide; and NSW TrainLink which operates XPTs Melbourne—Sydney.
There are also several smaller freight operators and numerous tourist railways operating over lines which were once parts of a state-owned system. Victorian lines mainly use the 1,600 mm broad gauge. However, the interstate trunk routes, as well as a number of branch lines in the west of the state have been converted to 1,435 mm standard gauge. Two tourist railways operate over 760 mm narrow gauge lines, which are the remnants of five formerly government-owned lines which were built in mountainous areas.
Melbourne has the world's largest tram network, currently operated by Yarra Trams. As well as being a popular form of public transport, over the last few decades trams have become one of Melbourne's major tourist attractions. There are also tourist trams operating over portions of the former Ballarat and Bendigo systems. There are also tramway museums at Bylands and Haddon.
Melbourne Airport is the major domestic and international gateway for the state. Avalon Airport is the state's second busiest airport, which complements Essendon and Moorabbin Airports to see the remainder of Melbourne's air traffic. Hamilton Airport, Mildura Airport, Mount Hotham and Portland Airport are the remaining airports with scheduled domestic flights. There are no fewer than 27 other airports in the state with no scheduled flights.
The Port of Melbourne is the largest port for containerised and general cargo in Australia, and is located in Melbourne on the mouth of the Yarra River, which is at the head of Port Phillip. Additional seaports are at Westernport, Geelong, and Portland.
As of October 2013, smoking tobacco is prohibited in the sheltered areas of train stations, and tram and bus stops—between 2012 and 2013, 2002 people were issued with infringement notices. The state government announced a plan in October 2013 to prohibit smoking on all Victorian railway station platforms and raised tram stops.