Basics of Asset Management Prof Tarek Hegazy Tarek
Basics of Asset Management Prof. Tarek Hegazy © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 1
Agenda Ø Infrastructure Asset Mgmt: A Challenge Ø Current Developments Ø Components Ø Systems, Surveys & Studies Ø Prototype Ø Recent Advances 2 © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 2
Infrastructure: A Challenge 3 Transportation Marine 1% 14% Water 2% Sewage 3% Electric 10% Communication 4% Non. Residential Buildings 40% Oil and Gas 21% Other 5% Complex Multiple-Assets on Multiple. Sites with Limited Repair Budget. Infrastructure Management © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 3
© Tarek Hegazy – www. civil. uwaterloo. ca/tarek 4
The Challenge Limited Budget to Maintain Safety and Operability § Which components to repair ? § When to repair ? § What kind of repair ? 4 © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 5
Facets Planning Horizon Now Excellent When? $ Condition New Condition Assessment Which? Future What? x Unacceptable level time Now Deterioration Prediction © Tarek Hegazy – www. civil. uwaterloo. ca/tarek Optional Repair Strategies 5 6
Facets $$$ Condition Assessment Visual Inspection Time consuming, subjective, & costly. Deterioration Prediction Decisions Requires a lot of historical data. Difficult to assess the interactions. Improvement Optional Repair Strategies Improper definition of repair, cost, & after-repair improvement. 6 © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 7
Facets Condition Assessment Deterioration Prediction Deterioration Model Replace Major Minor $ 5, 000 Cost Model Repair & Improvement Life Cycle Analysis (LCCA) Improvement model © Tarek Hegazy – www. civil. uwaterloo. ca/tarek Life Cycle Analysis & Prioritization Prioritized Assets Which, When, What, & How much? 9 8
Condition Assessment 1 10 © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 9
© Tarek Hegazy – www. civil. uwaterloo. ca/tarek 10
Condition Assessment Distress Analysis Direct Rating Deficiency Critical Frame Problems w 1 1 Hardware Problems wi 1 . . Fair Good (Fast but Less Accurate) Severity Weight . . 2 3 4 . . 5 S 1 5 Si (Accurate but lacks guidance) Asset Hierarchy Ø Scale (0 Good & 10 Poor) Ø Inspection / Data Collection Ø Calculate Condition) Ø © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 11
Deterioration Model 2 15 © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 12
Deterioration Model Condition Assessment Deterioration Prediction Repair & Improvement Life Cycle Analysis & Prioritization Predictive Models: Ø Ø Based on Service Life Deterministic (Regression) Stochastic (Markov) Artificial Intelligence (ANN) © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 9 13
Repair Model 3 © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 14
Repair Model Condition Assessment Deterioration Prediction Repair & Improvement After-Repair Condition: Repair Cost = % of Replacement Cost. Ø Ø Ø Light repair = 28. 5% Medium repair = 65% Extensive repair = 100% Seo, J. 1994 Life Cycle Analysis & Prioritization 3, 4 5, 6 7, 8 © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 5, 6 Medium 7, 8 Extensive Light - Medium Light 15
Life Cycle Analysis 4 © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 16 21
Life Cycle Analysis Project level Variables & constraints Network level Variables & constraints Integration Planning horizon Value of Money? 24 © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 17
Life Cycle Analysis Example of a bridge case study 25 © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 18
Systems, Surveys & Studies Many Computerized Tools Municipal infrastructure asset management systems: state-of-the-art review Halfawy, M. ; Newton, L. ; Vanier, D. NRCC-48339 2005 4 © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 19
Systems, Surveys & Studies Many Computerized Tools MIMS © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 20
Systems, Surveys & Studies 21 RECAPP 2002 Select Component USER INPUT of Distress Deficiency list for the selected component © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 21
Systems, Surveys & Studies City Works 4 © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 22
Systems, Surveys & Studies Synergen 4 © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 23
Interesting Developments Automated Condition Assessment Optimizing the Delivery of Large M&R Programs 10 24
M&R Planning Execution Planning Infrastructure Management Systems List of Priority Assets & Repair Types Execution order? Outsourcing? In-house resources? Meet Strict deadline? Normal / Overtime? © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 25
Execution Challenge Site Order Moving Time Site Productivity M&R Time/Cost © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 27
GIS Support Site 5 ct iv ity Crew 1 Crew 2 ep Repair Activity for Five Schools ai r. A Site 4 Crew 1 R Site 3 Site 2 Site 1 Site 3 Crew 2 Crew 1 0 1 2 3 4 5 6 Time End Crew 1 Site 5 Crew 2 Site 4 Link Between the Scheduling Model & Different Layers of GIS data Site 2 © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 29
MR&R Delivery Options Delivery Approaches for MR&R Programs In-House Resources Outsourcing + Out-Tasking © Tarek Hegazy – www. civil. uwaterloo. ca/tarek Combination of All 30
Example Initial Schedule Two Outsourced sites Deadline not met © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 31
Example Deadline met at Min. cost. Schedule => GIS © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 32
Benefits Ø Cost-Effective delivery Ø In-house vs outsourcing vs out-tasking Ø Ties to Asset Management Systems Ø Realistic execution to meet constraints Ø Do more for less & reduce backlog Ø Speedy corrective actions © Tarek Hegazy – www. civil. uwaterloo. ca/tarek 33
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