© tarek hegazy – 1 basics of asset management prof. tarek hegazy

© Tarek Hegazy – www.civil.uwaterloo.ca/tarek 1

Basics of Asset ManagementBasics of Asset ManagementBasics of Asset ManagementBasics of Asset Management

Prof. Tarek Hegazy

Prof. Tarek Hegazy


Infrastructure Asset Mgmt: A ChallengeInfrastructure Asset Mgmt: A Challenge

Current DevelopmentsCurrent DevelopmentsComponentsComponentsSystems, Surveys & StudiesSystems, Surveys & StudiesPrototypePrototype

Recent AdvancesRecent Advances

Infrastructure Asset Mgmt: A ChallengeInfrastructure Asset Mgmt: A Challenge

Current DevelopmentsCurrent DevelopmentsComponentsComponentsSystems, Surveys & StudiesSystems, Surveys & StudiesPrototypePrototype

Recent AdvancesRecent Advances

AgendaAgenda

2


33333

Marine 1%

Non-

Residential

Buildings 40%

Other 5%

Oil and Gas 21%

Communication 4%

Electric 10%

Transportation

14%Water 2%

Sewage 3%

33333Infrastructure: A

ChallengeInfrastructure: A

Challenge

Infrastructure ManagementInfrastructure Management

Complex Multiple-Assets on Multiple-Sites with Limited

Repair Budget.


Which components to repair ?

Which components to repair ? When to repair ? When to repair ? What kind of repair ? ? What kind of repair ? ?

4

Limited Budget to Limited Budget to

Maintain Safety and Maintain Safety and

Operability Operability

Limited Budget to Limited Budget to

Maintain Safety and Maintain Safety and

Operability Operability

The ChallengeThe Challenge


Planning Horizon

time

Con

dit

ion

Now

Unacceptable level

Excellent

New

x

$

Deterioration Prediction

Optional Repair

Strategies

Condition Assessment

Now

When?When?

5

FacetsFacets

Future

Which?Which?

What?What?


DecisionsDecisionsDecisionsDecisionsRequires a lot of historical data.

Difficult to assess the interactions.

Requires a lot of historical data.

Difficult to assess the interactions.

Improper definition of

repair, cost, & after-repair

improvement.

Improper definition of

repair, cost, & after-repair

improvement.

Time consuming,

subjective, & costly.

Time consuming,

subjective, & costly.

Deterioration Deterioration PredictionPrediction

Optional Optional Repair Repair

StrategiesStrategies

$$$$$$ ImprovementImprovement

Condition Condition AssessmentAssessment

6

Visual Inspection

FacetsFacets




Repair & Improvement

Life Cycle Analysis &

Prioritization

9

FacetsFacets

Life Cycle Analysis (LCCA)

Life Cycle Analysis (LCCA)

Prioritized Assets

Prioritized Assets


Deterioration Model

ReplaceReplaceMajor Major

Minor $ 5,000Minor

$ 5,000

Cost Model Cost

Model

Improvement model

Improvement model

Which,

When,

What, &

How much?

Which,

When,

What, &

How much?


Condition AssessmentCondition Assessment

110


(Accurate but lacks guidance)(Accurate but lacks guidance)

Direct Rating

Critical

Fair

Good

Deficiency Weight

Frame Problems w1

Hardware Problems wi

1 2 3 4 5 S1

Si

Severity

(Fast but Less Accurate)(Fast but Less Accurate)

..

......

1 2 3 4 5

..

......

Distress Analysis

Condition AssessmentCondition Assessment

1001

d

iijij

j

SWDI

Asset Hierarchy Scale (0 Good & 10 Poor) Inspection / Data Collection Calculate Condition)

Asset Hierarchy Scale (0 Good & 10 Poor) Inspection / Data Collection Calculate Condition)


2

Deterioration ModelDeterioration Model

15






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:Predictive Models:

Deterioration ModelDeterioration Model


Repair ModelRepair Model

3


Repair ModelRepair Model

Repair Cost = % of Replacement Cost.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





Prioritization

After-Repair Condition:

After-Repair Condition:5, 65, 6 7, 87, 8

3, 43, 4 MediumMedium ExtensiveExtensive

5, 65, 6 LightLight MediumMedium

7, 87, 8 -- LightLight


4Life Cycle AnalysisLife Cycle Analysis

21


Life Cycle AnalysisLife Cycle Analysis

Project level Project level

Variables & constraintsVariables & constraints

Network level Network level


IntegrationIntegration

Planning horizonPlanning horizon

Value of Money?Value of Money?

Project level Project level


Network level Network level


IntegrationIntegration

Planning horizonPlanning horizon

Value of Money?Value of Money?


Life Cycle AnalysisLife Cycle Analysis

Example of a bridge case Example of a bridge case

study study Example of a bridge case Example of a bridge case

study study


Many Computerized Tools 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







MIMSMIMSMIMSMIMS


2121212121

RECAPP RECAPP 20022002

RECAPP RECAPP 20022002

Select Component

USER INPUT of

Distress

Deficiency list for the selected

component






City City

WorksWorksCity City

WorksWorks




SynergenSynergenSynergenSynergen

Interesting Developments

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


Infrastructure Management

Systems

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

Execution Planning

List of Priority Assets & Repair Types

List of Priority Assets & Repair Types

M&R PlanningM&R Planning


Site OrderSite OrderMoving TimeMoving Time

Site ProductivitySite Productivity

M&R

Time/Cost

M&R

Time/Cost

Execution ChallengeExecution Challenge


EndEnd

00 11 22 33 Time Time44 55 66

Crew 1Crew 1

Crew 2Crew 2

Site 5

Site 5Site 5

Site 1

Site 1Site 1

Site 2

Site 2Site 2

Site 3

Site 3Site 3

Site 4

Site 4Site 4

Crew 1Crew 1

Crew 2Crew 2

Crew 1Crew 1

Crew 2Crew 2

Repair

Acti

vity

Repair Activity for

Five Schools

Repair Activity for

Five SchoolsCrew 1Crew 1

Link Between the Scheduling Model & Different Layers of GIS

data

Link Between the Scheduling Model & Different Layers of GIS

data

GIS SupportGIS Support


Delivery Approaches for MR&R Programs

Delivery Approaches for MR&R Programs

In-House Resources

In-House Resources

Outsourcing + Out-Tasking

Outsourcing + Out-Tasking

Combination of All

Combination of All

MR&R Delivery OptionsMR&R Delivery Options


ExampleExampleInitial Initial ScheduleSchedule

Two Two Outsourced Outsourced sites sites

Deadline Deadline

not metnot met

Initial Initial ScheduleSchedule

Two Two Outsourced Outsourced sites sites

Deadline Deadline

not metnot met


ExampleExample

Deadline met at Deadline met at Min. cost.Min. cost.

Schedule => Schedule => GISGIS

Deadline met at Deadline met at Min. cost.Min. cost.

Schedule => Schedule => GISGIS


BenefitsBenefits

Cost-Effective deliveryCost-Effective delivery

In-house vs outsourcing vs out-taskingIn-house vs outsourcing vs out-tasking

Ties to Asset Management SystemsTies to Asset Management Systems

Realistic execution to meet constraints Realistic execution to meet constraints

Do more for less & reduce backlogDo more for less & reduce backlog

Speedy corrective actionsSpeedy corrective actions

Cost-Effective deliveryCost-Effective delivery

In-house vs outsourcing vs out-taskingIn-house vs outsourcing vs out-tasking

Ties to Asset Management SystemsTies to Asset Management Systems

Realistic execution to meet constraints Realistic execution to meet constraints

Do more for less & reduce backlogDo more for less & reduce backlog

Speedy corrective actionsSpeedy corrective actions

© tarek hegazy – 1 basics of asset management prof. tarek hegazy

Documents

tarek hegazy slide

repair condition

challenge slide

light slide

repair model repair

deterioration model

light repair

medium repair