Highways in Australia

See also: Freeways in Australia

Aerial view of Tuggeranong Parkway in Canberra.

Deer Park Bypass on the Western Freeway.

The Great Alpine Road passing through Everton, Victoria.

Highways in Australia are generally high capacity roads managed by state and territory government agencies, though Australia's federal government contributes funding for important links between capital cities and major regional centres. Prior to European settlement, the earliest needs for trade and travel were met by narrow bush tracks, used by tribes of indigenous Australians. The formal construction of roads began in 1788, after the founding of the colony of New South Wales, and a network of three major roads across the colony emerged by the 1820s. Similar road networks were established in the other colonies of Australia. Road construction programs in the early 19th century were generally underfunded, as they were dependent on government budgets, loans, and tolls; while there was a huge increase in road usage, due to the Australian gold rushes. Local government authorities, often known as Road Boards, were therefore established to be primarily responsible for funding and undertaking road construction and maintenance. The early 1900s saw both the increasingly widespread use of motorised transportation, and the creation of state road authorities in each state, between 1913 and 1926. These authorities managed each state's road network, with the main arterial roads controlled and maintained by the state, and other roads remaining the responsibility of local governments. The federal government became involved in road funding in the 1920s, distributing funding to the states. The depression of the 1930s slowed the funding and development of the major road network until the onset on World War II. Supply roads leading to the north of the country were considered vital, resulting in the construction of Barkly, Stuart, and Eyre highways.

The decades following the war saw substantial improvements to the network, with freeways established in cities, many major highways sealed, development of roads in northern Queensland and Western Australia under the Beef Cattle Roads Grants Acts, and interstate routes between Sydney and Melbourne upgraded. In 1974, the federal government assumed responsibility for funding the nations most important road links, between state and territory capitals cities, which were declared National Highways. Some sections of the 16,000-kilometre-long (9,900 mi) National Highway system were no more than dirt tracks, while others were four lane dual carriageways. The network was gradually improved, and by 1989, all gravel road sections had been sealed. In the following decades, the National Highway system was amended through legislation, and was eventually superseded in 2005 by the broader National Land Transport Network, which included connections to major commercial centres, and intermodal freight transport facilities.

The first route marking system was introduced in the 1950s by the Conference of State Road Authorities, which later became the National Association of Australia State Road Authorities (NAASRA) and then Austroads. National Routes were assigned to significant interstate routes "which, both now and in the future, comprise the more important arteries of road communications throughout Australia in all its aspects". East-west routes were planned to have even numbers, increasing from south to north, while north-south routes would have odd numbers, with numbers increasing from east to west. National Route 1 would be an exception, as a "circumferential route along the coastline of Australia". A state route marking systems was designed to supplement the national system, for inter-regional and urban routes within states. Each state could choose their own numbering scheme, as long as National Route and State Route numbers weren't duplicated in the same state, or nearby routes in another state. When the National Highway system was introduced, National Routes along it became National Highway routes with the same numbers, but with distinctive green and gold route markers. During the 1990s, planning began for a new alphanumeric route system. Alphanumeric routes have been introduced in most states and territories in Australia, partially or completely replacing the previous systems.

History

The earliest needs for trade and travel were met by narrow bush tracks, used by tribes of Indigenous Australian prior to European settlement. The formal construction of roads began in 1788, after the founding of the colony of New South Wales. These roads were little more than cleared paths, constructed without grading, drainage systems, and road surfaces. There was no system wide planning for roads, with the Surveyor-General's 1788 proposed town plan dismissed as being too ostentatious; however, the arrival of Governor Macquarie in 1810 lead to a planned system for roads and bridges, prior to actual settlement of areas, financed from government funds, public subscription, and tolls. By the end of his term in 1822 the colony had a network of three major roads, with the Great Western Road as the most important link, traversing the Blue Mountains from Sydney to Bathurst. Similar road networks were established in the other colonies of Australia.

Road construction programs in the early 19th century were generally underfunded, as they were dependent on government budgets, loans, tolls and public subscription. This problem was exacerbated by the huge increase in road usage, due to the Australian gold rushes. Local government authorities were therefore established as authorities primarily responsible for funding and undertaking road construction and maintenance. The increasing amount of motorised transportation in the early 1900s lead to another major increase in traffic levels. The vehicles also required higher standard of roads. State road authorities were established in each state between 1913 and 1926. These authorities managed each state's road network, with the main arterial roads controlled and maintained by the state, and other roads remaining the responsibility of local governments. Though legislation differed in each state, highways were generally established as a subset of state controlled roads, which were the most important links between major cities, towns, and regional centres.

The federal government became involved in road funding in the 1920s. The Public Works Act was passed in 1922, which distributed $500,000 to the states according to population levels, conditional on states matching funding on a "dollar for dollar basis". The funds were specifically aimed at maintenance of roads outside of metropolitan cities, and state expenditure needed federal government approval; however, the primary purpose of the act was to reduce unemployment. The Main Roads Development Act of 1923 made $1 million available for road construction, and specific road projects were funded under the Federal Aid Roads Act of 1926. The 1931 Federal Aid Roads Act removed matching conditions, and were less restrictive on the way the money was used due to poor economic conditions resulting from the depression of the 1930s. Funding conditions remained at this lower level until 1959.

The depression of the 1930s slowed the funding and development of the major road network until the onset on World War II. Supply roads leading to the north of the country were considered vital, leading to the construction of Barkly, Stuart, and Eyre highways. Over 960 kilometres of the Stuart Highway, from Tennant Creek to Darwin, was upgraded from an often impassable track to an all-weather sealed highway that could cope with heavy military traffic. The Eyre Highway across the Nullarbor was formed just by grading the surface material.

The decades following the war saw substantial improvements to the network, with freeways established in cities, many major highways sealed, development of roads in northern Queensland and Western Australia under the Beef Cattle Roads Grants Acts. The interstate routes between Sydney and Melbourne were upgraded with the first four lane dual carriageway section of the Hume Highway opening in 1961, and the completed sealing of the Princes Highway between the cities in 1966. Large mining developments in the Pilbara region of Western Australia were undertaken lead to the improvement of the North West Coastal Highway from Carnarvon to Port Hedland, a project that involved building 30 bridges in a decade.

In 1974, the federal government assumed responsibility for funding the nations most important road links. Under the National Roads Act 1974, the most important roads between state and territory capitals cities were declared National Highways. The federal government fully funded construction and maintenance works undertaken by the states on these roads. The 16,000 kilometres (9,900 mi) of roads included in the original National Highway system varied greatly in quality. Some sections were no more than dirt tracks, whilst others were four lane dual carriageways. While 12,496 kilometres (7,765 mi) was sealed, there was also 3,807 kilometres (2,366 mi) of gravel roads. The National Highway was gradually improved, with the sealed proportion increased from 73 per cent in the early 1970s to 88 per cent by 1981. The sealing works were completed in 1989.

In 1988, the National Highway became redefined under the Australian Land Transport Development (ALTD) Act of 1988, which had various amendments up to 2003. The 1988 Act also defined a category of "Road of National Importance", which were partly funded by federal government. The Introduction of the AusLink (National Land Transport) Act in 2005 superseded the National Highway and Roads of National Importance classifications, which were replaced by the National Land Transport Network. The criteria for inclusion in the network was similar to the previous legislation, but expanded to include connections to major commercial centres, and inter-modal freight transport facilities. All of the roads included in National Land Transport Network as of 2005 were formally defined by regulation in October 2005. Auslink has since been replaced with subsequent legislation under the federal government's Nation Building Program, which includes the National Land Transport Network. The National Highways road routes developed under the former system are still designated as National Highways on route markers and road guidance signs. However, the new alphanumeric route numbering system being introduced to New South Wales and the ACT in 2013 does not distinguish between the former National Highways and other routes.

Route numbering systems

Roads routes in Australia assist drivers navigating roads throughout the country, by identifying important through-routes. The first route marking system was introduced to Australia in the 1950s. National Routes were assigned to significant interstate routes – the most important road links in the country. National Route 1 was designated to a circular route around the Australian coastline. A state route marking system was designed to supplement the national system, for inter-regional and urban routes within states. When the National Highway system was introduced, National Routes along it became National Highway routes with the same numbers, but with distinctive green and gold route markers. Alphanumeric routes were introduced in Tasmania in 1979, and during the 1990s, planning began for nationally consistent route markings, using the alphanumeric system. Alphanumeric routes have been introduced in most states and territories in Australia, partially or completely replacing the previous systems.

Route types in use by state/territory

State/Territory	Alphanumeric	National Highway (alphanumeric)	National Highway (numeric)	National Route	State Route	Metroad	Tourist Drive
Australian Capital Territory	Yes	No	No	No	No	No	Yes
New South Wales	Yes	No	No	No	No	No	Yes
Northern Territory	Partial	Partial	Yes	Yes	Yes	No	No
Queensland	Yes	Yes	No	Yes	Yes	Yes	Yes
South Australia	Yes	Yes	No	No	No	No	Yes
Tasmania	Yes	No	Yes	No	No	No	No
Victoria	Yes	Yes	No	Yes	Yes	No	Yes
Western Australia	No	No	Yes	Yes	Yes	No	Yes

National Routes and Highways

Route markers

National Highway 1

National Route 13

State Route 66

In 1955, the Australian National Route Numbering System was introduced to simplify navigation across Australia. The National Route Numbers are marked by white shields that are present in directional signs, distance signs or trailblazers. The general rule was that odd-numbered highways travel in north-south directions and even-numbered highways in east-west directions, with only a few exceptions. National Route 1 was assigned to a network of highways and roads, which together linked all capital cities and coastal towns circumnavigating the mainland. The National Route system initially linked the centres of towns and cities and terminated at the junction of other national routes, however many bypasses have been constructed since then. National Routes often terminated at the metropolitan city limits rather than the individual city centres.

In 1974, the federal government assumed responsibility for funding the nations most important road links, with the introduction of the National Highway. These highways were marked with distinctive green and gold route marker shields instead of the plain National Route shield. Though the National Highway system has be superseded in subsequent legislation, National Highway route markers are still used on many of the routes. Additionally, National Highways and National Routes have been phased out, or are in the process of being phased out, in all states and territories except Western Australia, in favour of the alphanumeric system.

State Routes

Important urban and inter-regional routes not covered by the National Highway or National Route systems are marked under the State Route system. They can be recognised by blue shield markers. They were practically adopted in all states by the end of the 1980s, and in some states, some less important National Routes were downgraded to State Routes. Each state has or had its own numbering scheme, but do not duplicate National Route numbers in the same state, or nearby routes in another state. As with the National Routes and National Highways, State Routes are being phased out in most states and territories in favour of alphanumeric routes. However, despite the fact that Victoria has fully adopted alphanumeric routes in regional areas, state route numbers are still used extensively within the city of Melbourne as a part of its Metropolitan Route Numbering Scheme.

Metroads

Metroad 5 route marker

In the 1990s in Sydney and Brisbane, urban route numbering system were streamlined as a part of the Metroad scheme. Metroad route numbers were assigned to the key navigational corridors, which could be recognised by their distinctive hexagonal shields which superseded the state route, freeway and National Route schemes along their path. As of 2013, Metroads have been fully replaced by alphanumeric routes in Sydney and are in transition to alphanumeric routes in Brisbane.

Alphanumeric routes

Alphanumeric markers

Alphanumeric National Highway

Alphanumeric (standard)

Alphanumeric (NSW & ACT)

Tasmania introduced an alphanumeric route numbering system in 1979, based on the British system from 1963. The new system aimed to upgrade the signing of destinations, including previously unmarked roads, and to simplify navigation by allowing visitors to follow numbered routes. National Highway 1 was retained as the only route without an alphanumeric designation. In the 1990s Victoria and South Australia also overhauled their systems. While South Australia discarded the National and State Route Numbering Systems, those shield-based schemes were retained in the Melbourne metropolitan area as the Metropolitan Route Numbering Scheme. The route numbers used in the alphanumeric schemes were generally inherited from the original National Route Numbering System, with only a few exceptions, and prefixed with letters denoting their grade. For example, Western Freeway is M8 until Ballarat and continues beyond as A8 Western Highway. They are not used extensively in the Melbourne metropolitan area where the blue-shield metropolitan route system is retained for most routes. The National Highways were retained, but with the route numbers changed to alphanumeric designations.

New South Wales and the Australian Capital Territory introduced the alphanumeric system from early 2013. Before being officially announced, new road signs were fitted with such numbers and then being "coverplated" with the existing route number. However, the new system does not distinguish between the former National Highways and other routes.

Alphanumeric routes have also been introduced for many major highways and urban routes in Queensland, although many other roads retain markers from the National Route, National Highway, State and Metroad numbering systems. According to the New South Wales Roads and Maritime Services, the Northern Territory has similarly begun converting their numbered routes to alphanumeric routes, with a "progressive replacement" scheme that sees alphanumeric route markers introduced only when signs are replaced. There are no plans to introduce an alphanumeric route numbering system in Western Australia.

"M" routes

Primary highways (called motorways in publications). These are typically dual carriageway freeway standard highways, with a wide median and wide sealed shoulder, used for emergency stopping. They connect capital cities to each other or to bigger rural cities and are also applicable to major city freeways. Interchanges may either be graded or level. They carry high volumes of traffic and bypass settlements, towns and sometimes cities.

"A" routes

Single carriageway interstate or interregional primary highways. Traffic volume less than "M" routes but with ample overtaking lanes, sealed shoulders and markings. They may pass through or bypass town centres.

"B" routes

Secondary highways linking together major towns on different "A" routes including certain lesser important former national routes. In addition, they may include major bypassed sections of former "A" or "M" routes and significant tourist routes. They are reasonably good quality sealed roads with shoulders either sealed or not.

"C" routes

Roads linking smaller settlements and towns to "A", "B" or "M" routes. May also be applied to short bypassed sections of former "A" routes. Fully sealed surface but of moderate to poor quality and may or may not have shoulders.

Federally funded highways

The federal government contributes funding for the following road links, which make up the national road network, under the Nation Building Program.

• Sydney to Melbourne – Hume Motorway/Hume Highway/Hume Freeway
• Sydney to Brisbane – the Pacific Motorway (Sydney–Newcastle), New England and Cunningham Highways route and the Pacific Highway route
• Brisbane to Cairns – Bruce Highway
• Brisbane to Darwin – Warrego, Landsborough, Barkly and Stuart Highways
• Brisbane to Melbourne – Warrego, Gore, Newell and Goulburn Valley Highways and Hume Freeway
• Melbourne to Adelaide – Western Freeway, Western Highway, Dukes Highway, South Eastern Freeway and Adelaide-Crafers Highway
• Adelaide to Darwin – Port Wakefield Road and Stuart Highway
• Adelaide to Sydney – Sturt and Hume Highway/Hume Motorway
• Adelaide to Perth – Port Wakefield Road, Eyre, Coolgardie-Esperance(part) and Great Eastern Highways
• Perth to Darwin – Great Northern, Victoria and Stuart Highways
• Sydney to Canberra – Hume Motorway/Hume Highway and Federal Highways
• Melbourne to Canberra – Hume Freeway/Hume Highway and Barton Highways
• Hobart to Burnie including the link from Launceston to Bell Bay – Brooker, Midlands and the Bass Highway
• Townsville to Mount Isa – Flinders Highway
• Melbourne to Sale – Princes Highway
• Perth to Bunbury – South Western Highway
• Melbourne to Mildura – Calder Highway
• Sydney to Dubbo – Great Western and Mitchell Highways
• Sydney to Wollongong – Princes Motorway and Princes Highway
• Melbourne to Geelong – Princes Highway

State listing

For state listings see:

• List of highways in New South Wales
• List of highways in Victoria
• List of highways in Queensland
• List of highways in South Australia
• List of highways in Western Australia
• List of highways in Tasmania
• List of highways in the Australian Capital Territory
• List of highways in the Northern Territory

See also

• Freeways in Australia
• Highway 1
• National Highway (Australia)
• Transport in Australia
• Road transport in Australia
• List of roads and highways
• List of Australian airports
• List of Australian ports

Further reading

• National Association of Australian State Road Authorities (1987). Bush Track to Highway: 200 Years of Australian Roads. ISBN 0855882077.

External links

• AUSTROADS, NAASRA and COSRA at OZROADS: The Australian Roads Website