Adelaide's North–South Corridor upgrade has reached another key milestone after the business case for the Regency Road to Pym Street section was approved by Infrastructure Australia, the nation's independent infrastructure advisor.

The North–South Corridor: Regency Road to Pym Street proposal PDF: 438 KB  is now identified as a Priority Project on the Infrastructure Priority List, the authoritative list of nationally significant infrastructure investments Australia needs over the next 15 years.

“The 1.8 kilometre Regency Road to Pym Street section is the third project from Adelaide's North-South Corridor upgrade to be positively assessed by the independent Infrastructure Australia Board,” said Infrastructure Australia Chief Executive, Philip Davies.

“Adelaide's 78 kilometre North–South Corridor is a key freight and commuter route, which is being progressively upgraded into a continuous motorway to support projected population and employment growth and provide reliable access to the city's CBD, the Port of Adelaide and Adelaide Airport. Once completed, it will be the major transport spine for Adelaide's north–south traffic.

“This proposal is to upgrade the section of South Road between Regency Road and Pym Street to a motorway with three lanes in each direction, connecting the South Road Superway to the Torrens Road to River Torrens Project.

“Upgrading the remaining sections of the North–South Corridor continues to be listed as a Priority Initiative on the Infrastructure Priority List, and we look forward to receiving the final business cases for these projects in the future” said Mr Davies.

Mr Davies said the South Australian Government should be commended for undertaking post–completion reviews on the completed sections of the North–South Corridor.

“Post–completion reviews are vital to assess a project's delivery against initial expectations, and provide important lessons for governments, industry and the community regarding what worked and what did not.

“In the case of the North–South Corridor upgrade, post–completion reviews on the completed sections have given Infrastructure Australia added confidence that the project will deliver significant benefits to the Australian economy,” Mr Davies said.

Infrastructure Australia advises on national infrastructure priorities and assesses the economic merits of projects with fully–developed business cases. Funding decisions are made by governments or the private sector.

The revised Infrastructure Priority List is available at www.infrastructureaustralia.gov.au.