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The Central Motorway Junction (CMJ) (also called 'Spaghetti Junction') in Auckland City, New Zealand, as seen from the Upper Queen Street bridge.

The Central Motorway Junction or CMJ, best known as Spaghetti Junction, is the intersection of New Zealand State Highways 1 and 16 south of the city centre of Auckland City, Auckland, New Zealand. It is multilevel structure (at least three traffic lanes crossing above each other in several locations) which has been described as a "fiendishly complicated, multi-layered puzzle of concrete, steel and asphalt" which carries around 200,000 vehicles a day.

The central motorway junction forms the intersection between the three major motorways of Auckland (Auckland Northern Motorway (1), Auckland Southern Motorway (1), and Northwest Motorway (16)), and provides access from these routes to the city centre. It is principally located in a series of gullies to the south and east of the CBD and in cuttings to the west.