Australia's first Stone Mastic Asphalt Runway - A Project Management Overview
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Australia's first Stone Mastic Asphalt Runway A Project Management Overview
History • A growing problem • Severe deformations at turning nodes • So lets redo the nodes
When does Project Management start? • Are we actually working the correct problem? • Are there other problems we should be working? • Are we solving it the correct way?
History • The wearing course was used up • So the answer must be a dense grade asphalt runway overlay?
Planning: First cut
December 2020
Planning: Refined
December 2019
Timings where brutal • Council briefing late November 2019 (Budget increase) • EOI to market 31 December 2019 • Council decision on 5 February • RFT out around April calling for detailed designs • RFT close in May • Council approval of contract 11 June 2019 • Practical Completion 18 December 2019
Detailed planning
• Level of planning
• The things we planned
• Ran options on:
• Construction costs of methods, areas, solutions, products etc.
• Cost of operating the resultant infrastructure, maintenance life cycles and product life
cycle cost
• Timings
Risk basedContractor choice • Did not choose the cheapest • Considered life cycle total cost of the infrastructure • Looked for a contractor that wanted/ needed the job • Personal connections were very important in building the team
Project team • GBA – general advisors, putting out fires, independent inspections and investigations • GHD - PMCA • Boral – Principal contractor • Airport Pavement Engineers – technical advisors, independent reviewer, reviewing night reports etc.
The approach • Got the right team • Consensus • Management focussed on member focus, team dynamic and resourcing • The pavilion vs the scoreboard
Problems: • I have my own survey thanks. • You want me to do what? • You want me to do it by when! • It is not done that way… • Why must I do that? • I am happy with it. • Why can I not do that. • You are going to stop me doing …! • I am done, I am going home. • Don’t worry about that, it is fine.
Special responses/ innovations • We started at the top. • Bespoke flanking mixes. • Fill before you dig. • Too much lime make it a lemon. • Thicker soft stuff or thinner hard stuff. • Skid control. • Where do you think you come from?
End result - savings • Significant savings, even though some parts required significantly more work because: • Discuss once, decide once (at the last moment) • All hands on deck • You had one job! • A numbers game • It all adds up • The good, bad and ugly • What do you want to be famous for?
SMA…
A short video from Boral • https://www.boral.com.au/projects/emerald-airport-upgrade White, G. & Almutairi, H. 2020 ‘Laboratory and field performance comparison of dense graded and stone mastic asphalt as a runway surface’, International Journal of Pavement Engineering, article-in-press. And the more general ones about SMA as a runway surface: Jamieson, S. & White, G. 2021, ‘Laboratory evaluation of the performance of stone mastic asphalt as an ungrooved runway surface’, Materials, vol.14, no. 502, pp. 1-18. Jamieson, S & White, G 2020, ‘Review of stone mastic asphalt as a high performance ungrooved runway surfacing’, Road Materials and Pavement Design, vol. 21, no. 4, pp. 886-905. Jamieson, S & White, G 2019, ‘Stone mastic asphalt as an ungrooved runway surface for Australian airports’, 18th AAPA International Flexible Pavements Conference, Sydney, New South Wales, Australia, 19-20 August. Jamieson, S & White, G 2019, ‘Developing a performance-based specification for stone mastic asphalt as an ungrooved runway surface’, International Airfield and Highway Pavements Conference, Chicago, Illinois, USA, 21-24 July. White, G & Jamieson, S 2018, ‘Introduction of stone mastic asphalt to Australian runways’, 1st International Conference on Stone Matrix Asphalt, Atlanta, Georgia, USA, 5-7 November.
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