Zone 1

Zone 1 covers a section of the north coast and a substantial inland area to the south, reaching almost to Hobart.^[3] It is delineated as follows:

• The junction of the A2 road (Bass Highway) and the A10 Road (Murchison Highway) in Somerset is the north-west corner of the zone.
• The A2 road from Somerset to Burnie, and National Route 1 from Burnie to its junction with the A5 road (Lake Highway) in Deloraine forms the northern and north-eastern boundary.
• The A5 road from Deloraine to its junction with National Route 1 in Melton Mowbray, and National Route 1 from Melton Mowbray to its junction with the B10 road in Bridgewater form the eastern boundary.
• The B10 road, from Bridgewater to its junction with the A10 road (Lyell Highway) in New Norfolk forms the south-eastern boundary.
• The A10 road (Lyell Highway to Queenstown) forms the southern boundary, and its continuation (Zeehan Highway to Zeehan and Murchison Highway to Somerset) forms the western boundary.

Zone 2

Zone 2 covers the north-west corner of the state, from the Zone 1 western boundary to the coast as far south as Macquarie Harbour.^[4] King Island is included in this zone.

Zone 3

Zone 3 covers the south-east corner of the state, including the northern part of Hobart.^[5] It is delineated as follows:

• The junction of National Route 1 and the A4 road (Esk Highway) in Conara is the north-west corner of the zone.
• The A4 road from Conara to its junction with the A3 road (Tasman Highway) in Falmouth forms the northern boundary.
• The A3 road from Falmouth to Bicheno and the coastline from Bicheno to the Derwent River form the eastern and southern boundaries.
• National Route 1 from Hobart to Conara forms the western boundary.

Zone 4

Zone 4 covers a section of the north-east of the state, from the Zone 3 northern boundary to Zone 8, which occupies the north-east corner of the state.^[6] It is delineated as follows:

• The junction of National Route 1 (northbound) and the A3 road (eastbound) in Launceston is the north-west corner of the zone.
• The A3 road from Launceston to the A4 road in Falmouth forms the northern boundary.
• The A4 road from Falmouth to National Route 1 at Conara forms the eastern and southern boundaries.
• National Route 1 from Conara to Launceston forms the western boundary.

Zone 5

Zone 5 covers a section of central Tasmania to the west of National Route 1, which separates it from Zones 3 and 4.^[7] It is delineated as follows:

• The junction of National Route 1 and the A5 road in Deloraine is the north-west corner of the zone.
• National Route 1 from Deloraine to Hagley, the B54 road from Hagley to Travellers Rest, and National Route 1 from Travellers Rest to Prospect form the northern boundary.
• National Route 1 from Prospect to the A5 road at Melton Mowbray forms the eastern boundary.
• The A5 road from Melton Mowbray to Deloraine forms the southern and western boundaries.

Zone 6

Zone 6 covers the area south and west of the Derwent River and south and west of the A10 road as far west as Derwent Bridge.^[8] Bruny Island is included in this zone.

Zone 7

Zone 7 covers the area west of the Tamar River to National Route 1 from Devonport to Deloraine, the B54 road from Deloraine to National Route 1 at Travellers Rest, and National Route 1 from Travellers Rest to Launceston. It also includes a small area north of Launceston, east of the Tamar, west of the A8 road (East Tamar Highway) and south of the B73 road (Batman Highway)^[9]

Zone 8

Zone 8 covers the north-east corner of the state, east of the Tamar River.^[10] Its southern road boundaries are:

• B73 road (Batman Highway)
• A8 road (East Tamar Highway)
• A3 road (Tasman Highway)

Flinders Island is included in this zone.

National Highway 1 and A routes

These are the state's most important arterial roads.

More information Route, Component roads ...

Route	Component roads	From	Via	To	Length	Notes ↑ (Top)
National Highway 1	Liverpool Street, Hobart Brooker Avenue, Hobart Brooker Highway Midland Highway, known in places as: * High Street, Campbell Town Streets in Launceston: * Bathurst Street (northbound) * Wellington Street (southbound)	Hobart		Launceston	199.0 km (123.7 mi)	Midland Highway includes the Brighton Bypass as well as the Bridgewater Bridge and the Red Bridge
	Bass Highway, known in Burnie as: * Marine Terrace	Prospect		Burnie	141.4 km (87.9 mi)	Prospect is a suburb of Launceston
A2	Bass Highway	Burnie	Smithton	Marrawah	131.2 km (81.5 mi)
A3	Liverpool Street, Hobart Tasman Highway, known in places as: * Main Road, Sorell * Gordon Street, Sorell * Cole Street, Sorell * High Street, Buckland * Prosser River Road, Orford * Victoria Street, Swansea * Franklin Street, Swansea * Burgess Street, Bicheno * Foster Street, Bicheno * Scamander Avenue, Scamander * Georges Bay Esplanade, St Helens * Cecilia Street, St Helens * Tully Street, St Helens * Main Street, Derby * Scott Street, Branxholm * Ringarooma Road, Scottsdale * King Street, Scottsdale * St Leonards Road, Waverley Streets in Launceston: * Hoblers Bridge Road * Elphin Road * Brisbane Street * George Street * York Street * Charles Street * Paterson Street	Hobart	Orford	Launceston	414.0 km (257.2 mi)	Tasman Highway includes Mcgees Bridge, the Sorell Causeway and the Tasman Bridge
A4	Esk Highway, known in places as: * Falmouth Street, Avoca * Stieglitz Street, Fingal * Talbot Street, Fingal Streets in St Marys: * Main Street * Story Street * Gray Road	Conara	St Marys	Falmouth	82.0 km (51.0 mi)	A4 splits at St Marys - northern end to Falmouth, southern end to Chain of Lagoons
	Elephant Pass Road	St Marys		Chain of Lagoons	16.4 km (10.2 mi)
A5	Highland Lakes Road (formerly Lake Highway), known in places as: * Patrick Street, Bothwell * Barrack Street, Bothwell * East Parade, Deloraine * Meander Valley Road * Bowerbank Link	Melton Mowbray		Deloraine	152.0 km (94.4 mi)
A6	Brooker Avenue Davey Street Macquarie Street Southern Outlet Huon Highway Main Street, Huonville	Hobart	Kingston	Southport	97.7 km (60.7 mi)
A7	York Street, Launceston West Tamar Road West Tamar Highway Elouera Street, Trevallyn Brisbane Street Main Road, Lanena & Exeter Weld Street, Beaconsfield Flinders Street, Beauty Point West Arm Road, Ilfraville Greens Beach Road	Launceston	Beauty Point	Greens Beach	65.1 km (40.5 mi)
A8	Bathurst Street, Launceston Lower Charles Street Wellington Street Goderich Street East Tamar Highway Main Road, Bell Bay Goulburn Street Low Head Road, Low Head	Launceston	George Town	Low Head	56.2 km (34.9 mi)
A9	Cole Street, Sorell Arthur Highway	Sorell	Dunalley	Port Arthur	69.9 km (43.4 mi)
A10	Lyell Highway Hobart Road, New Norfolk Montagu Crescent Hamilton Road Franklin Place, Hamilton Batchelor Street, Queenstown Penghana Road Zeehan Highway Murchison Highway Agnes Street, Rosebery Read Street	Granton	Queenstown	Somerset	416.0 km (258.5 mi)

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B routes

These are other important sub-arterial and connecting roads.

C routes

These are significant minor roads.