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Legislative Assembly for the ACT: 2018 Week 03 Hansard (Thursday, 22 March 2018) . . Page.. 1065 ..


(1) In relation to the William Hovell, Coulter Drive and Coppins Crossing intersection, was a business case undertaken prior to the redevelopment of the Coppins Crossing redevelopment; if so, can the Minister provide a copy of the business case.

(2) Was the design for the redevelopment an external design; if so, who was the designer.

(3) How many people/companies tendered for the design process.

(4) What was the scope of the design.

(5) Were any other options considered; if so, what were the other options,

(6) Was a fly over option considered.

(7) What consideration was undertaken in relation to the future traffic congestion and traffic flow.

(8) Was any future modelling undertaken; if so, can the Minister provide a copy.

(9) Who approved the design and development of this intersection redevelopment and what level are they employed at.

(10) Did the design of the intersection redevelopment go to cabinet; if so, on what date.

Mr Barr: The answer to the member’s question is as follows:

(1) Yes, a business case for “Improving our Suburbs – New Molonglo Valley Infrastructure” was prepared for Cabinet and subsequently, appropriation was approved in the 2016/17 budget. That business case is “Sensitive: Cabinet” and I am not inclined to release it.

(2) The new layout of the intersection of William Hovell Drive and Coppins Crossing Road (to be renamed John Gorton Drive) was chosen following feasibility studies by engineering consultants SMEC (in 2008 and 2013) and Aecom (in 2015). Aecom’s 2015 study involved detailed traffic modelling and reconfirmed SMEC’s earlier findings. Calibre Consultants were appointed in 2016 to undertake the detailed design of the intersection, based on the recommendations from the earlier SMEC and Aecom studies. All three of these companies are internationally based consultants with extensive experience in the Canberra region over many years and have been involved with numerous other traffic modelling studies and intersection designs.

(3) Five design consultancies tendered for the detailed design phase of the intersection, which was subsequently awarded to Calibre Consulting.

(4) The scope of the design phase services was to review the earlier Feasibility Study, prepare Preliminary Sketch Plan drawings, undertake Value Management and Safety in Design reviews of the design, produce Final Design drawings and prepare tender documents for the construction phase.

(5) Intersection types which were examined as part of the earlier Smec and Aecom studies included realigning Coppins Crossing Road (John Gorton Drive) to provide a typical 4-way at-grade signalised intersection and also a grade separation of Coppins Crossing Road (John Gorton Drive) and William Hovell Drive. The proposed layout


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