Metroads were the primary road routes serving the Sydney and Brisbane metropolitan areas from the 1990s to the early 2010s. The Metroads formed a network of radial and circumferential routes throughout the cities, simplifying navigation. Metroads have been progressively phased out in both Sydney and Brisbane, replaced by alphanumeric route numbers. Brisbane is the only city currently retaining the Metroad system.
The A3 is a route designation of a major metropolitan arterial route through suburban Sydney, connecting the A8 at Mona Vale at its northern end, to Princes Highway at Blakehurst at its southern end. This name covers a few consecutive roads and is widely known to most drivers, but the entire allocation is also known – and signposted – by the names of its constituent parts: Mona Vale Road, Ryde Road, Lane Cove Road, Devlin Street, Church Street, Concord Road, Homebush Bay Drive, Centenary Drive, Roberts Road, Wiley Avenue and King Georges Road.
Cumberland Highway is a 34-kilometre (21 mi) long urban highway located in Sydney, New South Wales, Australia. The highway links Pacific Highway and Pacific Motorway (M1) at Pearces Corner, Wahroonga in the northeast with Hume Highway at Liverpool in the southwest. This name covers a few consecutive roads and is widely known to most drivers, but the entire allocation is also known – and signposted – by the names of its constituent parts: Pennant Hills Road, James Ruse Drive, Briens Road, Old Windsor Road, Hart Drive, Freame Street, Emert Street, Jersey Road, Betts Road, Warren Road, Smithfield Road, Palmerston Road, (New) Cambridge Street, Joseph Street and Orange Grove Road. The entire length of Cumberland Highway is designated part of route A28.
Ermington is a suburb of Sydney, New South Wales, Australia. Ermington is located 19 kilometres West of the Sydney central business district, in the local government area of the City of Parramatta. Ermington lies on the northern bank of the Parramatta River.
Pennant Hills Road is a 16.1-kilometre-long (10.0 mi) arterial road located in Sydney, New South Wales, Australia. The road links the suburb of Wahroonga in the northeast, to the major central business district of Parramatta in the southwest. Apart from a small section at its southwestern end, it is a constituent part of Cumberland Highway, and is designated part of route A28.
Bangor Bypass is a road in New South Wales, Australia, between New Illawarra Road and River Road, bypassing Bangor and Menai. Completed in February 2005, it replaced Menai Road as the main road between A6 and River Road, alleviating traffic on Menai Road and increasing travel speed through Bangor and Menai. It also acts as a western extension of River Road and Woronora Bridge, which was completed four years earlier in 2001. A section of New Illawarra Road north of the bypass was also completed as part of the project, linking the bypass directly to Alfords Point Road.
King Georges Road is a 9.0-kilometre-long (5.6 mi) major suburban arterial road through south-western Sydney, Australia. It is a constituent part of the A3 route.
Pittwater Road is a 21-kilometre-long (13 mi) major arterial road along the coast of the Northern Beaches suburbs of Sydney, Australia, the majority of which is a constituent part of the A8 route.
James Ruse Drive is a 6.4-kilometre-long (4.0 mi) limited-access urban highway located to the east and north of Parramatta, in Western Sydney, New South Wales, Australia. Originally a series of disconnected urban streets, it was later upgraded to act as a bypass of central Parramatta.
Lane Cove Road is a 4.9-kilometre-long (3.0 mi) major suburban arterial road through North Ryde in Sydney, Australia. It is a constituent part of the A3 route.
Epping Road is a 10-kilometre-long (6.2 mi) is a major arterial road linking the lower North Shore and Sydney central business district to the north western suburbs of the upper North Shore and Hills District of Sydney, New South Wales, Australia, being a major access road to the commercial, industrial and university areas of North Ryde and Macquarie Park.
The A8 is a route designation of a major metropolitan arterial route through suburban north-eastern Sydney. This name covers a few consecutive roads and is widely known to most drivers, but the entire allocation is also known – and signposted – by the names of its constituent parts: Pittwater Road, Condamine Street, Burnt Bridge Creek Deviation, Manly Road, Spit Road and Military Road.
Silverwater Bridge is a concrete box girder bridge that spans the Parramatta River west of the central business district in Sydney, New South Wales, Australia. The bridge carries Silverwater Road (A6) over the river to link Silverwater in the south to Rydalmere and Ermington in the north.
Victoria Road is a major road in Sydney, New South Wales, Australia, connecting Parramatta with Rozelle and is currently one of the longest roads in Sydney. The road passes over two major bridges: the Iron Cove Bridge over Iron Cove, and the Gladesville Bridge over the Parramatta River.
Camden Valley Way is a 23-kilometre (14 mi) arterial road between the southwestern fringes of suburban Sydney and the historic town of Camden. It is a former alignment of Hume Highway.
Windsor Road is a notable road in the Hills District of Sydney, linking Windsor and North Parramatta in Sydney's west. It is a constituent part of route A2.
Old Windsor Road is a notable and historic road in Sydney, Australia. It starts from Kellyville, New South Wales and ends at Northmead, New South Wales, just north of Parramatta, and acts as part of a main arterial between Parramatta and Windsor. A section at its southeastern end is a constituent part of Cumberland Highway.
The A38 is a route designation of a major metropolitan arterial route through suburban Sydney, linking M2 Hills Motorway in North Ryde and Pittwater Road (A8) in Dee Why. This name covers a few consecutive roads and is widely known to most drivers, but the entire allocation is also known – and signposted – by the names of its constituent parts: Delhi Road, Millwood Avenue, Fullers Road, Pacific Highway, Boundary Street, Babbage Road and Warringah Road.
Heathcote Road is a 24-kilometre-long (15 mi) major arterial road in the south of Sydney, Australia. It plays a major role in the servicing of traffic travelling between the Illawarra and Western Sydney, and its eastern end is a constituent part of the A6 route.
The A34 is a route designation of a major metropolitan arterial route through suburban Sydney, linking Hume Highway at Liverpool and Princes Highway at Newtown, running parallel to the tolled M5 Motorway. This name covers a few consecutive roads and is widely known to most drivers, but the entire allocation is also known – and signposted – by the names of its constituent parts: Macquarie Street, Terminus Street, Newbridge Road, Milperra Road, (New) Canterbury Road, Stanmore Road and Enmore Road.
A6 (2013–present)
Cumberland Highway 
Princes Highway 
