application of multi criteria optimisation and trade-off analysis (dr wei liu)
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Application of Multi-Criteria Optimisation in ONRC Planning and Programming
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The One Network Road Classification (ONRC)
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New Challenges and Opportunities
• The ONRC’s customer levels of service and performance measures are a new way of working, and in the early stages this can seem challenging.
• It will also bring new opportunities for smarter network management planning and programming
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How We Address the Challenges?
• Multi-Criteria Project Scoring, Ranking and Prioritization Process
• Advanced Optimisation and Trade-off Analysis
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Multi-Criteria Analysis
• A valuable tool to support complex decision makings
• Most applicable to solve problems that are characterized as a choice among alternatives.
• It helps us focus on what is important, is logical and consistent, and is easy to use.
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Optimisation• It’s about:
“Not just prioritizing but identifying best mix of projects to deliver the optimal outcomes”
“Optimal spend” and “avoidance of over OR underspend”
”Ability to understand and present different scenarios as required”
“Having a transparent defendable position”
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Overview of Our Framework and Tool
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Analysis Inputs• Number of Years for Planning• Project pool
• Business Area, Category and sub-category• Costs (can be staged in multi years)• Impacts (e.g. KPI contributions)
• Multi-Criteria Analysis• Business KPIs and their relative importance• Rules for project scoring and ranking
• Cross Asset Optimisation And Trade-off Analysis• Objective Function• Constraints (budgets and/or performances)
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Outcomes from Analysis• Project (overall or by business unit)
ranking list (most to least valuable) • Optimal project mix to deliver on agreed
KPI’s• Optimised multi-year forward work
programme• Optimal fund allocations among business
unit and asset category• Programme cost (total, and per annum),
by business unit• KPI delivery tracking/forecasting
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Example: Evaluate and rank projects across investment areas with rationale and consistence
Ranking of Project by Overall Scores
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Example: FWP Development for Satisfying ONRC LoS Targets
Optimisation Setup
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Example: FWP Development for Satisfying ONRC LoS TargetsComparison with dTIMS Optimisation
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Example: Testing Different Optimisation Strategies
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SummaryMulti-Criteria Cross Asset Optimisation and Trade-off Analysis
Framework and Tool: • Consistent and objective project scoring, ranking and prioritisation
process• Flexible optimisation configurations
• Ability to set up and run different objective function • Ability to accommodate various number and type of constraints, including
budget constraints and performance constraints in one year or multiple years.
• Suitable for all level of analysis, from strategic budget analysis to operational project analysis
• Capable to run cross-sector, cross-asset, or cross-class fund allocation analysis
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