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How Australian Rail Networks Are Structured: Operators, Managers and Who Does What
Why Australian rail is so confusing to understand from the outside
If you are new to the rail industry in Australia — as a contractor, a supplier, or simply someone trying to understand who is responsible for what — the structure of the industry can be genuinely confusing. There is no single "Australian rail network" run by one company. Instead, the system is a patchwork that reflects Australia's federation of separate colonies, each of which built and managed its own railway before Federation in 1901, and largely continued to do so for the century that followed.
The result is a structure where the entity that owns the track is often different from the entity that runs the trains, and both can be different again depending on which state and which type of line — metropolitan, regional, or interstate freight — you are looking at.
Understanding this structure matters practically. If you are a supplier trying to get verified for a specific network, a contractor seeking network access for maintenance work, or simply trying to understand who to call about a specific stretch of track, knowing who actually manages the infrastructure is the first and most important question to answer.
The "above rail, below rail" split
The foundational concept for understanding Australian rail structure is the separation between below rail and above rail functions.
Below rail refers to the physical infrastructure: the track, the sleepers, the signalling systems, the level crossings, and the overall network. The organisation responsible for below rail is called the rail infrastructure manager (sometimes "track owner" or "network owner" in everyday language). This organisation owns or leases the track, maintains it, schedules possessions for maintenance work, and grants access to train operators who want to run services.
Above rail refers to the trains themselves and the services that run on the track — both freight and passenger. The organisations responsible for above rail are train operators. They do not own the track. Instead, they pay access fees to the relevant infrastructure manager for the right to run their trains on that section of network.
This split is deliberate. It was introduced across most of Australia from the late 1990s as a way to open up rail networks to competition — allowing multiple train operators to run services on the same infrastructure, rather than a single vertically integrated state railway controlling both the track and every train that uses it. Some networks remain vertically integrated (Aurizon's Central Queensland Coal Network is a notable exception, where Aurizon both owns the infrastructure and operates the trains), but the above rail / below rail split is the dominant model across the country.
The major infrastructure managers in Australia
Australian Rail Track Corporation (ARTC)
ARTC is the single largest rail infrastructure manager in Australia. It is an Australian Government-owned statutory corporation that manages more than 9,600 kilometres of track across New South Wales, Queensland, South Australia, Victoria, and Western Australia — collectively known as the Designated Interstate Rail Network.
Critically, ARTC does not operate any trains. It is purely a below-rail infrastructure manager, providing and maintaining the track for other companies — Pacific National, Aurizon, Qube, Great Southern Rail, and others — to run their own trains on. ARTC's network includes the East-West corridor (linking Kalgoorlie in WA to Adelaide and on to Melbourne) and the North-South corridor (linking Melbourne to Brisbane via Sydney), along with the Hunter Valley coal network in NSW.
ARTC also manages the Inland Rail project, a new 1,600km freight corridor under construction between Melbourne and Brisbane via inland NSW and Queensland, designed to support double-stacked freight trains.
State-based metropolitan and regional infrastructure managers
Each Australian state has its own arrangements for metropolitan and regional passenger networks, which are generally separate from the ARTC interstate network.
| State | Metropolitan network manager | Regional network manager |
|---|---|---|
| New South Wales | Sydney Trains / Transport for NSW | Transport for NSW (regional and country lines) |
| Victoria | Metro Trains Melbourne (operator, infrastructure owned by VicTrack) | V/Line |
| Queensland | Queensland Rail (1067mm narrow gauge network) | Queensland Rail |
| Western Australia | Public Transport Authority (Transperth) | Arc Infrastructure (freight network, leased from the WA Government) |
| South Australia | Adelaide Metro | Aurizon (regional freight network, excluding ARTC main lines) |
This table is a simplification — actual arrangements involve leases, sub-leases, and shared access agreements that have evolved over decades, particularly in South Australia, where Aurizon manages large parts of the regional freight network except for the metropolitan broad gauge network and the ARTC main lines running through the state.
Major freight train operators
The companies that actually run freight trains across these networks include:
- Pacific National — one of Australia's largest freight rail operators, handling coal, containers, and intermodal freight, and responsible for roughly 30% of the nation's rail freight volume
- Aurizon — Australia's largest rail freight operator by tonnage, focused on bulk commodities including coal and iron ore, and also an infrastructure manager in its own right through the Central Queensland Coal Network
- Qube Logistics (Rail) — operates rail freight services and integrated supply chain logistics across multiple states
- SCT Logistics — operates intermodal freight services, particularly on east-west and interstate corridors
These operators pay access charges to use ARTC's network (and other infrastructure managers' networks) under negotiated or regulated access agreements, similar in concept to an airline paying landing fees to use an airport.
Passenger operators
On the passenger side, Great Southern Rail operates iconic long-distance services including The Ghan and Indian Pacific, running on ARTC's interstate network alongside freight traffic. Metropolitan passenger services are typically operated by state-government-linked entities (Sydney Trains, Metro Trains Melbourne, Queensland Rail passenger services) that are closely tied to, or are themselves, the infrastructure manager for their respective networks.
Why this structure matters for contractors and suppliers
For anyone working in or supplying to the Australian rail industry, the above rail / below rail split has practical consequences.
Network access and certification are infrastructure-manager-specific. A contractor accredited (covered in our guide to the Rail Industry Worker card) to work on ARTC's network is not automatically accredited to work on Sydney Trains, Queensland Rail, or any other network. Each infrastructure manager runs its own accreditation and access processes, even though the underlying Rail Safety National Law framework applies nationally.
Product certification can also be network-specific. Equipment used in the rail corridor — including track components, tools, and PPE — may need to meet specific requirements set by the infrastructure manager whose network it will be used on, in addition to general Australian Standards.
Suppliers and contractors often need relationships with multiple organisations. A maintenance contractor working across a freight corridor that spans an ARTC interstate section and a state-managed regional section needs to satisfy the requirements of both infrastructure managers, even for what feels like a single continuous job.
Procurement decisions depend on which network you are working on. Gauge standards differ by network — 1067mm for Queensland Rail, 1435mm for ARTC's interstate network and Sydney Trains, 1600mm for V/Line and Victorian freight — which affects everything from track gauges to sleepers and clips.
A quick reference: who to think about for a given task
| If you need to... | Who is typically responsible |
|---|---|
| Apply for a possession on the interstate freight network | ARTC |
| Apply for a possession on a Sydney metropolitan line | Sydney Trains / Transport for NSW |
| Apply for a possession on a Queensland line | Queensland Rail |
| Apply for a possession on a Victorian regional line | V/Line / VicTrack |
| Run a freight train across multiple states | Negotiate access separately with each relevant infrastructure manager (ARTC, state networks) |
| Source rail-spec products and equipment | A verified Australian supplier — see Rail Depot Direct |
| Get a contractor accredited for a specific network | The relevant infrastructure manager's accreditation process — see our guide to the RIW card |
Frequently Asked Questions
Who owns the Australian rail network?
There is no single owner. ARTC manages the largest share — the Designated Interstate Rail Network spanning five states — but state governments and their agencies (via entities like Transport for NSW, VicTrack, and Queensland Rail) own and manage their own metropolitan and regional networks.
Does ARTC operate trains?
No. ARTC is purely a below-rail infrastructure manager. It provides and maintains the track but does not run any train services itself. Companies like Pacific National, Aurizon, Qube, and Great Southern Rail operate the trains that run on ARTC's network.
What is the difference between above rail and below rail?
Below rail refers to the physical track, signalling, and infrastructure, managed by an infrastructure manager. Above rail refers to the trains and services that run on that infrastructure, run by separate train operating companies who pay access fees to use the network.
Why do different states have different rail gauges?
Each Australian colony built its own railway before Federation in 1901, choosing different gauge standards independently. This resulted in three gauges still in use today — see our full explainer on Australian rail gauge standards.
If I'm accredited on one network, can I work on another?
Not automatically. Accreditation, certification, and access arrangements are generally specific to each infrastructure manager. Working across multiple networks usually requires separate accreditation processes with each one.
Source rail equipment for any Australian network through Rail Depot Direct
Whatever network you work on, Rail Depot Direct stocks rail maintenance equipment, tools, safety gear, and consumables from verified Australian suppliers — with products available across all three Australian gauge standards.