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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 1 Basics of Asset Management Prof. Tarek Hegazy
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 2 Infrastructure Asset Mgmt: A Challenge Infrastructure Asset Mgmt: A Challenge Current Developments Current Developments Components Components Systems, Surveys & Studies Systems, Surveys & Studies Prototype Prototype Recent Advances Recent Advances Infrastructure Asset Mgmt: A Challenge Infrastructure Asset Mgmt: A Challenge Current Developments Current Developments Components Components Systems, Surveys & Studies Systems, Surveys & Studies Prototype Prototype Recent Advances Recent Advances Agenda 2
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 3 33333 Marine 1% Non- Residential Buildings 40% Other 5% Oil and Gas 21% Communication 4% Electric 10% Transportation 14% Water 2% Sewage 3% 33333 Infrastructure: A Challenge Infrastructure Management Complex Multiple-Assets on Multiple- Sites with Limited Repair Budget.
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 4
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5 Which components to repair ? When to repair ? ? What kind of repair ? 4 Limited Budget to Maintain Safety and Operability The Challenge
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 6 Planning Horizon time Condition Now Unacceptable level Excellent New x $ Deterioration Prediction Optional Repair Strategies Condition Assessment Now When ? 5 Facets Future Which? What?
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 7 DecisionsDecisions Requires a lot of historical data. Difficult to assess the interactions. Improper definition of repair, cost, & after-repair improvement. Time consuming, subjective, & costly. Deterioration Prediction Optional Repair Strategies $$$Improvement Condition Assessment 6 Visual Inspection Facets
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 8 Condition Assessment Deterioration Prediction Repair & Improvement Life Cycle Analysis & Prioritization 9 Facets Life Cycle Analysis (LCCA) Prioritized Assets Condition Assessment Deterioration Model Replace Major Minor $ 5,000 Minor $ 5,000 Cost Model Cost Model Improvement model Which, When, What, & How much? Which, When, What, & How much?
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 9 Condition Assessment 1 10
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 10
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 11 (Accurate but lacks guidance) Direct Rating Critical Fair Good Deficiency Weight Frame Problems w 1 Hardware Problems w i 12345 S1SiS1Si Severity (Fast but Less Accurate).... 12345.... Distress Analysis Condition Assessment Asset Hierarchy Scale (0 Good & 10 Poor) Inspection / Data Collection C alculate Condition) Asset Hierarchy Scale (0 Good & 10 Poor) Inspection / Data Collection C alculate Condition)
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 12 2 Deterioration Model 15
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 13 Condition Assessment Deterioration Prediction Repair & Improvement Life Cycle Analysis & Prioritization 9 Based on Service Life Deterministic (Regression) Stochastic (Markov) Artificial Intelligence (ANN) Based on Service Life Deterministic (Regression) Stochastic (Markov) Artificial Intelligence (ANN) Predictive Models: Deterioration Model
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 14 Repair Model 3
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 15 Repair Model Repair Cost = % of Replacement Cost. Light repair = 28.5% Medium repair = 65% Extensive repair = 100% Seo, J. 1994 Light repair = 28.5% Medium repair = 65% Extensive repair = 100% Seo, J. 1994 Condition Assessment Deterioration Prediction Repair & Improvement Life Cycle Analysis & Prioritization After-Repair Condition: 5, 6 7, 8 3, 4 MediumExtensive 5, 6 LightMedium 7, 8 -Light
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 16 4 Life Cycle Analysis 21
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 17 24 Life Cycle Analysis Project level Variables & constraints Variables & constraints Network level Variables & constraints Integration Planning horizon Value of Money? Project level Variables & constraints Variables & constraints Network level Variables & constraints Integration Planning horizon Value of Money?
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 18 25 Life Cycle Analysis Example of a bridge case study
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 19 4 Many Computerized Tools Municipal infrastructure asset management systems: state-of-the-art review Halfawy, M.; Newton, L. ; Vanier, D. NRCC-48339 2005 Systems, Surveys & Studies
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 20 Many Computerized Tools Systems, Surveys & Studies MIMSMIMS
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 21 RECAPP 2002 Select Component USER INPUT of Distress Deficiency list for the selected component Systems, Surveys & Studies
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 22 4 Systems, Surveys & Studies City Works
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 23 4 Systems, Surveys & Studies SynergenSynergen
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Interesting Developments Automated Condition Assessment Optimizing the Delivery of Large M&R Programs Automated Condition Assessment Optimizing the Delivery of Large M&R Programs 10
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 25 Infrastructure Management Systems Execution order? Outsourcing? In-house resources? Meet Strict deadline? Normal / Overtime? Execution order? Outsourcing? In-house resources? Meet Strict deadline? Normal / Overtime? Execution Planning List of Priority Assets & Repair Types M&R Planning
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 26 Project Quantities Conditions User Less Disruption User Less Disruption Network Sites Distances Network Sites Distances Government (Budget) Government (Budget) Political Industry (Technology) Industry (Technology) Constructability / Execution Planning Deterioration model Improvement model Infrastructure Management Systems Age Location Condition Age Location Condition Network Database Life cycle cost analysis Optimization Replace Major Minor $ 5,000 Minor $ 5,000 Cost Model Condition Assessment Infrastructure Management Execution order? No. of contractors? In-house resources? Meeting Strict deadline? Normal or Overtime Work? Execution order? No. of contractors? In-house resources? Meeting Strict deadline? Normal or Overtime Work? Limited Decision Support Limited Decision Support List of Priority Assets & Repair Types
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 27 Site Order Moving Time Site Productivity M&R Time/Cost M&R Time/Cost Execution Challenge
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 28 Objectives M&R Execution Planning: M&R Execution Planning: Better Representation Better Representation Distributed Sites Distributed Sites Delivery Options Delivery Options Constraints Constraints Cost Optimization Cost Optimization GIS Support GIS Support M&R Execution Planning: M&R Execution Planning: Better Representation Better Representation Distributed Sites Distributed Sites Delivery Options Delivery Options Constraints Constraints Cost Optimization Cost Optimization GIS Support GIS Support
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 29 End 0 0 1 1 2 2 3 3 Time 4 4 5 5 6 6 Crew 1 Crew 2 Site 5 Site 1 Site 2 Site 3 Site 4 Crew 1 Crew 2 Crew 1 Crew 2 Repair Activity Repair Activity for Five Schools Crew 1 Link Between the Scheduling Model & Different Layers of GIS data GIS Support
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 30 Delivery Approaches for MR&R Programs Delivery Approaches for MR&R Programs In-House Resources Outsourcing + Out-Tasking Combination of All Combination of All MR&R Delivery Options
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 31 Example Initial Schedule Two Outsourced sites Deadline not met Initial Schedule Two Outsourced sites Deadline not met
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 32 Example Deadline met at Min. cost. Schedule => GIS Deadline met at Min. cost. Schedule => GIS
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© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 33 Benefits Cost-Effective delivery Cost-Effective delivery In-house vs outsourcing vs out-tasking In-house vs outsourcing vs out-tasking Ties to Asset Management Systems Ties to Asset Management Systems Realistic execution to meet constraints Realistic execution to meet constraints Do more for less & reduce backlog Do more for less & reduce backlog Speedy corrective actions Speedy corrective actions Cost-Effective delivery Cost-Effective delivery In-house vs outsourcing vs out-tasking In-house vs outsourcing vs out-tasking Ties to Asset Management Systems Ties to Asset Management Systems Realistic execution to meet constraints Realistic execution to meet constraints Do more for less & reduce backlog Do more for less & reduce backlog Speedy corrective actions Speedy corrective actions
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