Parramatta to Epping Rail Link
Client Turner & Townsend for the Department of Transport NSW Government
Skills Planning & Programming, Project Costing
On 11 August 2010 the Prime Minister of Australia announced that the Federal Government would partner with the NSW Government to complete the Parramatta to Epping Rail Link. The construction of this infrastructure would extend the existing Epping to Chatswood Rail Link (ECRL) and facilitate the extension of direct heavy rail services between the existing Parramatta and Epping stations.
The proposed project scope included 11.5 kilometers of twin track heavy rail line between Parramatta and Epping with four existing surface stations to be upgraded, a new station at Rosehill-Camellia and new underground platforms at Parramatta. Approximately 7 kilometers of the route is underground and the remaining 4.5 kilometers follows the existing rail corridor between Carlingford and Camellia.
LBA were responsible for the provision of estimating support to Turner & Townsend (Pty) Limited. We provided a cost consultant to prepare the tunnelling elements of the suite of estimates prepared during the design development and business case phases of the project and to assist with the stations and surface rail. LBA also provided detailed advice for the development of an anticipated construction program for the implementation of the project. This included
- Providing cost planning advice and preparing strategic cost estimates during the design development phase; including providing advice on the impact of different design variables on budget and risk as the design developed.
- Providing advice on delivery models, procurement strategies, commercial arrangements and risk allocations based on the experiences from other major international infrastructure projects.
- Developing the cost plan for inclusion in the Business Case Submission.
- Carrying out probabilistic cost estimates and undertaking sensitivity analysis to identify those aspects of the cost model which have the greatest contribution on uncertainty of costs.
- Providing advice on the construction programme for the underground sections of the proposed project.
To ensure that the cost planning was delivered within the timescales required, a proactive approach was needed from the LBA cost consultant:
- The cost plan had to be prepared in parallel with the development of the design and not after, using a resource based approach.
- The cost planning process had to inform decisions during the design development and in some instances recommend more cost effective alternatives.
- Real time advice on the commercial impact of design and programme considerations was critical to finding the optimum solution.
- Timely, consistent and accurate reporting of financial and likely programme impacts was essential for the Client’s decision making process during the development of the design.