cross-asset multi-objective optimization system for
TRANSCRIPT
cnam.ca
Mahmoud Halfawy, Ph.D., P.Eng., PMP Infrastructure Data Solutions (IDS)
Loretta Gette, P.Eng. City of Regina
Amir Agha, P.Eng. City of Regina
Cross-Asset Multi-Objective Optimization System for
Investment Planning of Infrastructure Asset Portfolios
CNAM 2019 Conference | May 6-9, 2019 | Kelowna, BC
Keeping the Pace
Portfolio-Level Planning: How it is Done Today
Portfolio
Water System
Sewer System
Drainage Roads Parks Facilities ….
▪ Siloed approach → data fragmentation & process inconsistencies
▪ Disparate asset-specific software tools and processes
▪ Asset-Network-Portfolio analysis levels
▪ Project selections may miss opportunities for coordination (i.e. cost/risk reduction)
▪ Difficulty visualizing & predicting the big (portfolio) picture over short or long-term
▪ Difficulty in coordinating/managing programs
Keeping the Pace
▪ Balance portfolio investments across different asset systems to meet performance targets at lowest costs
▪ Better data and process integration across “silos”
▪ Determine optimal mix of projects that maximize performance, minimize risk, at lowest lifecycle cost
▪ Find efficiencies through cross-asset project coordination
▪ Portfolio-wide program development and management
▪ Consistent and objective project selection process
▪ Accurately determine funding needs to deliver performance/LoS objectives
▪ Increase transparency of the program development process →increase stakeholder buy-in
Why Portfolio-Level Optimization is Important?
Keeping the Pace
Proposed Portfolio Optimization Approach
Assets Portfolio
Water System
Sewer System Drainage Roads Parks Facilities
Assets Interventions
Keeping the Pace
Proposed Portfolio Optimization Approach (Cont.)
Keeping the Pace
Portfolio Scenarios
Asset Class 1 Scenarios
$10M $15M $20M …
Asset Class 1 Scenarios
$5M $9M $12M …
…
(W1= 0.2; W2=0.3, W3=…)
Optimizing Cross-Asset Budget Allocation
Keeping the Pace
Secure High-Performance Servers
Integrated GIS-Based Assets/ProgramsData Repository
Engineering Services
Capital Planning
Operations &Maintenance
Enterprise Systems
& Data Sources
System Architecture
Ass
et O
pti
miz
er M
od
ule
s
Data Analytics
Renewal Planning (AIP)
Cross-Asset Analysis
Program Management
Capex/Opex Trade-Offs
Proposed Work Analysis
Processing Server(s)Data Server(s)
Keeping the Pace
Asset Class 1
Asset Class 2..mAsset System 1
Asset Portfolio
Asset System 2..n
Assets Data
Assets Sub-Systems
Assets Data
Assets Sub-Systems
Assets Portfolio
Water System
Water Mains
Hydrants Valves …
Sewer System
Drainage Roads Parks Facilities
Asset Hierarchy
Keeping the Pace
Asset Class 1
Asset Class 2..m
Asset System 1
Group 1
Groups 2….n
Elements/Components
Interventions Models
Prediction Models
Deterioration Model
Risk/Prioritization Models
Planning Scenarios/Programs
Criticality Model
Group 2
Asset Portfolio
Asset System 2..n
Performance Variables
Models Hierarchy
Keeping the Pace
Optimizing Cross-Asset Budget Allocation - Example
Portfolio performance metric/
total budget
Keeping the Pace
Optimizing Cross-Asset Budget Allocation (Cont.)
Invest more on wastewater sewers and less on roads
Keeping the Pace
Optimizing Cross-Asset Budget Allocation - Example
Keeping the Pace
Cross-Asset Project Clustering
Keeping the Pace
Conclusion
• Portfolio optimization can aid to ensure optimal balance across asset systems and maximize portfolio-level performance.
• Spatial/temporal analysis of investment plans across different asset classes help coordinate projects and ensure efficiencies
• A novel multi-objective optimization approach for portfolio-level investment planning demonstrated the value of portfolio optimization.
Keeping the Pace
Questions?
Contact:Dr. Mahmoud Halfawy
1.306.790.1415
1.306.591.0862
www.ids.consulting