ContractorProjectTransport Agency projects – Fixing SH20AContrafed PUblishingMay 22, 2015August 16, 2022 by Contrafed PUblishingMay 22, 2015August 16, 2022 IN SIMPLE TERMS, the SH20A (Auckland) to Airport upgrade involves turning a current expressway standard intersection into a motorway standard one. A lot of readers...