National Highway A1 (Tasmania)

National Highway A1 (Tasmania)
Name	National Highway A1 (Tasmania)
Route	A1
Length km	410
Terminus a	Melbourne
Terminus b	Launceston
Established	1920s

National Highway A1 (Tasmania) National Highway A1 (Tasmania) is the principal sealed arterial route connecting Hobart with northern and north-western Tasmania via Launceston, forming a backbone for passenger, freight and tourism movements across the island. The corridor links key ports and airports including Port of Hobart, Burnie Harbour, Hobart International Airport, and Launceston Airport, and interfaces with major trunk routes such as the Brooker Highway, Midland Highway, and Bass Highway. It traverses diverse landscapes from the Derwent River valley and the Central Plateau to coastal plains near Devonport and passes proximate to Tasmanian institutions and landmarks like University of Tasmania, Royal Hobart Hospital, MONA, and Museum of Old and New Art.

Route description

The A1 runs from Hobart northwards through suburban corridors including Glenorchy, Moonah, Claremont, before ascending via the Derwent River bridges and following the Midland Highway alignment through regional centres such as Oatlands, Ross, and Campbell Town. North of Launceston the route connects to the Bass Highway corridor toward Devonport and Burnie, intersecting arterial links like the East Tamar Highway, West Tamar Highway, Lyell Highway, Esk Highway, and Arthur Highway. Along its length A1 provides access to industrial precincts at Glenorchy Industrial Estate, agricultural regions surrounding Northern Midlands, and tourism enclaves including Richmond Bridge, Cascade Brewery, Freycinet Peninsula, and visiting sites such as Cradle Mountain via connecting roads. The highway crosses major waterways including the River Derwent, South Esk River, and Tamar River and lies adjacent to conservation areas like Mount Field National Park, Foster Ranges, and sections of the Tasmanian Wilderness World Heritage Area.

History

The alignment has origins in 19th-century coach routes established during the colonial period connecting Port Arthur supply lines, convict roads, and early settlements such as New Norfolk and Sorell. Upgrades accelerated after federation with federal investments influenced by the National Roads Act 1974 and later national partnerships involving agencies including the Department of Infrastructure and Transport and the Tasmanian Department of State Growth. Major twentieth-century works paralleled developments at Hobart Dockyard, wartime logistics tied to World War II naval bases, and postwar growth driven by industries like mining at Zeehan, forestry near Derwent Valley, and manufacturing at Invermay. Twentieth-century bypasses and dual-carriage upgrades reflect planning debates involving Hobart City Council, Launceston City Council, the Roads and Traffic Authority and community groups such as Tasmanian Conservation Trust and Royal Automobile Club of Tasmania.

Major junctions and interchanges

Key interchanges on A1 include the junction with the Brooker Highway serving northern Hobart suburbs, the intersection with Elizabeth Street in Launceston, the turnoff to Mersey Main Road for Devonport, and connections to the Bass Highway and East Tamar Highway toward northern coastal centres. Roundabouts and grade-separated interchanges occur at nodal points near Glenorchy, Brighton Bypass, Evandale, Perth, and the South Arm Road junctions. Freight-oriented links serve industrial precincts at Somerset, Wynyard, Smithton, and port access at Burnie Harbour Authority facilities; regional links also feed tourism routes to Stanley, Strahan, Pumphouse Point, and Maria Island ferry terminals.

Traffic, usage and safety

Traffic volumes vary from urban commuter flows in Hobart and Launceston to heavy vehicle movements between Bell Bay and southern ports, with peak season spikes due to tourism attractions such as MONA, Freycinet National Park, and the Tasmanian leg of the Great Eastern Drive. Safety analyses have been undertaken by the Australian Transport Safety Bureau and local road authorities addressing crash clusters near Black Dog Hill, rural overtaking lanes, and junction safety at Epping Forest and Longford. Countermeasures include speed zoning coordinated with Tasmania Police, roadside barrier installations following Australasian standards influenced by the Australasian New Car Assessment Program guidance, and targeted enforcement campaigns in partnership with Australian Federal Police and regional health services like Northern Tasmania General Hospital.

Upgrades and future plans

Recent projects include the Brighton Bypass completion, pavement strengthening funded under the National Land Transport Network, and intersection upgrades near Conara Junction and St Leonards. Planned works proposed by the Tasmanian Government and federal partners encompass overtaking lane packages on rural sections, improved freight corridors to Bell Bay Port and Burnie, active transport links adjacent to suburban stretches near Moonah and Glenorchy, and resilience upgrades addressing climate risks documented by CSIRO and Bureau of Meteorology studies. Strategic planning involves stakeholders such as Infrastructure Australia, the Australian Local Government Association, and regional development bodies including Northern Tasmania Development and Tasmanian Ports Corporation.

Heritage and notable features

The A1 corridor passes heritage assets including colonial-era structures like Richmond Bridge and Pontville Barracks, industrial heritage at Zeehan Railway Museum, and maritime heritage linked to Port Arthur and Sarah Island. Cultural sites adjacent to the route include galleries such as MONA and museums including the Queen Victoria Museum and Art Gallery, historic estates like Brickendon and Clarendon, and Aboriginal heritage landscapes associated with the Palawa people and sites recorded by institutions such as the Tasmanian Aboriginal Centre. Scenic drives link to events and festivals including the Taste of Tasmania, Ten Days on the Island, and motorsport events at Symmons Plains Raceway and Tasmanian Motorsport Park.

Category:Highways in Tasmania