Presentation for Roads Australia Miller Street, Sydney 3 April creating public Pacific Highway delivering value for money

Transcription

1 Presentation for Roads Australia Miller Street, Sydney 3 April 2014 Legitimacy & Support creating public Pacific Highway delivering value for money Real sustainable development solutions in practice Public Value Operational Capability The Value Chain Robert (Bob) Higgins, General Manager (on behalf of the Pacific Highway Team) 1

2 Presentation Outline Ballina Bypass (2012) Short case studies from Pacific Highway projects (Please write down your thoughts) Learnings Kempsey Bypass (2013) Questions 2

3 Case Studies 1 The Sapphire to Woolgoolga Story 2 The St Helena Tunnel Story 3 The Ballina Bypass Story 4 The Macleay River Crossing Story 5 The Nambucca Heads Interchange Story 6 A Changing Design Standards Story 7 A Fauna Crossing Story 3

4 Case Study No.1: Sapphire to Woolgoolga Story - Background Existing two lane highway at or near capacity Intra/interstate, regional and local traffic mix High growth region on North Coast of NSW Many views on where the new highway should go Green behind developing coastal strip Where should the new highway go? Sapphire to Woolgoolga upgrade Coffs Harbour Highway Upgrade Strategy Sapphire to Woolgoolga Coffs Bypass 4

5 Case Study No.1: Sapphire to Woolgoolga - Process Steering panel (DoP, RTA & Council # ) # Council pulled out halfway through Preferred route decision based on: technical studies value management study community views (many feedback loops) Value for money assessment process: Value for Money RANK ASSESSMENT CRITERIA Functional Social / Community Biophysical Total Cost 1 COASTAL COUNCIL HWY UPGRADE COASTAL 2 HWY UPGRADE WESTERN COASTAL HWY UPGRADE 3 COASTAL WESTERN WESTERN 4 COUNCIL Severe impact C CL (1) WEST (1) HWY UPGRADE (2) COUNCIL (3) 5

6 Case Study No.1: Sapphire to Woolgoolga - Outcome Coastal corridor chosen.. no perfect answer : No perfect answer.. based on balance across the key elements Mitigate human impacts on chosen coastal route Staging: Short term versus long term needs Affordability Current status: Sapphire to Woolgoolga almost finished (14 + year journey) Inner bypass of Coffs Harbour being preserved Planning & design almost complete for Woolgoolga to Halfway Creek 6

7 Case Study No. 1: Sapphire to Woolgoolga - Learnings Robust decision making process based on: achieving best balance across competing factors value for money diagnostic model successfully applied/ adapted to other highway upgrades + Grafton bridge transparent process sought and explored options tested concepts/ ideas with community & stakeholders before making final decision The affordability question needs to be answered Robust authorisation process required in a very complex environment 7

8 Case Study No. 2: The St Helena Tunnel Story - Background Upgraded highway was to follow existing highway: Class A style highway upgrade posted speed of 80 km 8% grades slope stability issues Very strong community division over the initial Bangalow to Ewingsdale route Truck noise concerns on St Helena hill Should RTA/ RMS review the alignment? 8

9 Case Study No.2: The St Helena Tunnel Story - Process Step 1: Step 2: Step 3: Step 4: 4 Establish legitimacy for review (Pacific Noise Task Force outcomes) Desk top review to establish a viable alternative under St Helena Hill: Value for Money Functional: - meets highway design standards for 110 km/hr Natural environment: $144M versus $83M (2004 $ s) - better visual on St Helena escarpment - fauna connectivity Human environment: BCR of 2.0 versus greater amenity impacts on residents - Comparative route selection process as part of Tintenbar to Ewingsdale upgrade project Obtain approval via Tintenbar to Ewingsdale upgrade approval 9

10 Case Study No. 2: The St Helena Tunnel Story - Outcome Higher cost option chosen but better operational/ visual outcome Under construction and opens in mid 2015 a 19 year journey. Tunnel breakthrough, January 2014 Higher standard & more consistent link between Ballina and Border. Improved community acceptance of the tunnel Tintenbar to Ewingsdale is still sensitive upgrade will leave catchments in better condition Artist s impression of northern approach to the tunnel 10

11 Case Study No. 2: The St Helena Tunnel Story - Learnings Had a good baseline to compare to A cheaper option is not necessarily the better option but need to demonstrate legitimacy and support for the alternative Whole of life considered albeit further work required: Operational costs of tunnel Include full risks for both options Need to listen to the community: they have a good idea of public value for money their views can change over time engineering community had views 11

12 Case Study No.3: The Ballina Bypass Story - Background 12 km bypass of Ballina & Tintenbar Hill Major congestion point during peak traffic periods Traffic accidents/ incidents on Tintenbar Hill Community pressure for an early bypass Located in Richmond River flood plain: Flood immunity of 1 in 20 ARI Very deep and variable soft soils (up to 30 metres) Delivered in stages: 2006 Early works on critical soft soils 2008 Main works via an alliance Late 2011 Bypass opened to traffic Mid 2012 Completed 12

13 Case Study No. 3: The Ballina Bypass Story - Process Granular pavement under construction, Ballina Bypass (2011) Overall delivery strategy: Enabling works Alliance for main construction Engaged experts from private and public sector at various phases Whole-of-life decision making Providing best balance/ positive tension between: Capital cost of construction Timely opening to traffic Settlement performance/ obligations post - opening: 0 to 1 years Alliance 1 to 10 years Project (RMS) > 10 years Assets (RMS) 13

14 Case Study No. 3: The Ballina Bypass Story types of soft soil treatments Wick drain/preload treatment Vacuum consolidation treatment Dynamic replacement treatment Deep soil mixing treatment Preloading/ surcharging treatment Light weight fill treatment 14

15 Case Study No. 3: The Ballina Bypass Story - Outcome For similar cost to base case, delivered: bypass six months earlier reduced overall construction period by 50% to 6-7 year timeframe Good community feedback on overall outcomes Whole-of-life decision making with accountabilities: 0 to 1 years Alliance 1 to 10 years Project (RMS) > 10 years Assets (RMS) Secured funding to complete Pimlico to Teven final stage: Stage 1.complete Stage 2.under construction Stage 3.part of Woolgoolga to Ballina 15

16 Case Study No. 3: The Ballina Bypass Story - Learnings Soft soil treatment Cost Time for result Preload Surcharge Surcharge & wick drains Dynamic Replacement Stone Columns Vacuum Consolidation Deep soil mixing Light weight fill Piling Bridges $ Post construction settlement Convinced our funders to allocate & seek funding for early time critical works Value testing right through the entire delivery process Used a whole-of-life approach Engaged the right knowledge: Public sector Private sector Performance Key Decision Making & Diagnostic Models Applied learnings to future projects & at a much earlier stage in a project s lifecycle 16

17 Case Study No.4: The Macleay River Crossing Story Background Macleay R. bridge under construction 2.2 km bridge Preferred highway route to east of Kempsey: 4.5 km crossing of Macleay River & floodplain: 3 bridges / 2.2 km of opening 2.3 km of embankment on deep & variable soft soils ongoing community concerns about building an embankment in the floodplain Delivery phase was fast tracked : $618 million from BAF start something by Dec 2009 must open by mid 2014 Chosen delivery model: Alliance + D&C Contract Sample bridge length v s flood level impact (2004) Preliminary design Macleay R. bridges & roadworks 17

18 Case Study No. 4: The Macleay River Crossing Story Decision Making Process Bridge Extension Requires ongoing performance accountabilities post opening D&C Contract Soft Ground Treatment Hard Ground Treatment Alliance Scope $ +ive tension D&C contractor Q (Project Control Group) Legacy 18

19 Case Study No. 4: The Macleay River Crossing Story Outcome Macleay River bridge under construction Longer waterway opening & higher bridge Opened bypass 1.25 years earlier & within budget Very satisfied community & removed a perceived risk Inches Road 3.2 km bridge 19

20 Case Study No. 4: The Macleay River Crossing Story Learnings Manufacturing site Final product Created environment to drive other innovations: - temporary levee to allow early access to floodplain - increased vibration & pressure limits in rock cuttings - bridge designed and built as a manufacturing site Created tension between public and private sector to drive better public value Strength of PCG to timely decisions Apply decision making process to other projects: Nambucca River Crossing Shark Ck Crossing 20

21 Case Study No. 5: The Nambucca Heads Interchange Story - Background Approved interchange shape tested through EIS. Why change the shape? Property owner on western side wanted a total acquisition To reduce natural environmental impact To better suit overall rest stop strategy Approved interchange shape (Warrell Ck to Urunga upgrade) To better suit industrial growth area to west of new highway To reduce cost 21

22 Case Study No.5: The Nambucca Heads Interchange Story - Process & Outcome Alternate Design 1.Prepare business case outlining: Alternative design Comparison against key criteria of functionality, human environment, natural environment & co Define public value proposition? Public exhibition inviting submissions from community and stakeholders 2. Establish public value proposition 3. Test proposition with community & stakeholders for support for change 4. Consider and approve proposal 5. Include in D&C tender documents for Nambucca Heads to Urunga 22

23 Case Study No. 6 : A Changing Design Standards Story - Examples Use of new ground treatment E7 on Nambucca Heads to Urunga General removal of SO gutters on embankments ( Sapphire to Woolgoolga project under construction) 23

24 Case Study No. 6 : A Changing Design Standards Story Process & Outcome Removal of need for SO gutters on embankments Kempsey Bypass Alliance challenged the need for SO gutters on embankments Business case prepared: Outlined advantages: Reduced formation width and clearing footprint by approx. 1.0 m Established cost savings of $0.5 million /km of embankment Provided evidence of long term performance Established mitigation measures (eg early vegetation on batters) Established public value Tested & obtained support for change with key stakeholders within RMS Implemented across Pacific Highway projects 24

25 Case Study No. 6 : A Changing Design Standards Story Process & Outcome Use of New E7 Embankment Treatment on projects RMS SWTC has range of ground treatments but did not cover situation when you have dry and firm existing ground: reduces the need for other more expensive ground treatments reduces time and risk exposure with an open excavation in periods of wet weather reduces spoil handling and disposal risks Business case prepared for: Outlined advantages: Established measures to make sure performance requirements are met Established public value Tested & obtained support for change with key stakeholders within RMS Being Implemented on new Pacific Highway projects Requires RMS partners to do the right thing 25

26 Case Study No. 7: A Fauna Crossing Story - Background Pacific Highway has strong focus on improved fauna connectivity over/under the new highway Many experts with many views Need to provide early certainty on type & location of structures COA s for Nambucca Heads to Urunga specify type & location What do you do when contractor says I have a better idea & save some money? Fauna Crossing Examples 26

27 Case Study No. 7: A Fauna Crossing Story Process & Outcome Adopt a collaborative approach between: Contractor (including expert ecologist) RMS key government agencies Develop credible alternative options for fauna crossing Assess value / cost from each stakeholder s perspective Assess overall public value of proposal Alternative proposal adopted has provided better public value: Better overall outcome for fauna Lower cost (approx. $2 million) Sample of assessment 27

28 Learnings for Transport Infrastructure Projects public Tell me what the value of your proposition is? An idea = efficiencies = public value You will need: to clearly define the issue/ problem to solve preferably have a base case to compare a set criteria to evaluate against a range of diagnostic tools to assist experts from both public and private sector 28

29 Learnings for Transport Infrastructure Projects (cont d) You need some form of a decision-making framework in the complex environment in which we operate Legitimacy & Support Public Value Operational Capability 29

30 Learnings for Transport Infrastructure Projects (cont d) For a good idea to be truly sustainable and repeatable, you need: a pipeline of projects to test, apply and if necessary adapt a decision making framework with the right diagnostic tools to assist to have the right people to drive the idea to foster support/ advocates for the idea to gain legitimacy 30

31 More information? Pacific Highway Upgrade Program - Website: - Project updates - Monthly achievement report - Six monthly report card Pacific Highway Office 21 Prince Street, Grafton Ph