Northern Busway, Auckland

The Northern Busway is a segregated busway with dedicated park-and-ride facilities that runs along the eastern side of the Northern Motorway, part of State Highway 1, in the north of Auckland, New Zealand, linking the North Shore with the northern end of the Auckland Harbour Bridge. The busway consists of two-way lanes running between Constellation Park & Ride station and Akoranga Station, and from Akoranga Station a southbound-only lane that joins the harbour bridge approaches just south of the Onewa Road on-ramp system.

City-bound Northern Express (NEX) services commence from Hibiscus Coast Park and Ride station and use local roads to connect to Albany Park and Ride station and from there to Constellation Park & Ride station, from where they travel on the dedicated busway lanes; from Albany Park & Ride, the lanes reduced travel time to Britomart Transport Centre from around one hour by car during peak hours to about half an hour by bus. In the reverse direction, NEX services leaving the city travel north to the Akoranga off-ramp, cross over the motorway, and enter Akoranga Station, from where they travel north on the busway lanes. The busway lanes are also an important transport link within the North Shore, where it is the spine of the bus-based public transport system.

Concept design for the busway was developed by MRCagney (formerly McCormick Rankin Cagney), with detailed design and consultation completed by Mario Madayag Architecture, Jasmax, Beca Group, Opus and Connell Wagner. Fletcher Construction was responsible for construction. Akoranga, Smales Farm, and Sunnynook stations were built by NZ Strong Construction.

Difficulties encountered included the nearby residential areas, the predominantly soft ground, and environmental efforts to protect New Zealand dotterel breeding grounds. Construction employed around 300 people at its peak, with around a million man-hours being invested, including shifts during 512 nights.

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