Abstract
Central Motorway Junction, situated at the heart of New Zealand's largest city, Auckland, is currently undergoing major upgrading works to improve the operational efficiency and safety of the junction. This paper describes the preliminary studies and scheme development undertaken for this upgrading work. A description of the existing motorway junction, the problems inherent in the junction and the details of the preferred scheme for the upgrading works (developed into a ‘specimen design’ for construction procurement) is provided. The paper focuses upon the proposals for construction of the new viaduct structures required for the scheme. It also covers the tendering and tender evaluation process for the main contract, and describes the features of the submitted tenders.
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