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OperationalResilienceAnalysisandCapacityBuildingintheUSVirginIslands

DavidL. Alderson,PhDAssociateProfessor,OperationsResearchDepartment

Director,CenterforInfrastructureDefenseNavalPostgraduateSchool

Workshop:FundamentalsofMicrogrid AnalysisandDesignSandiaNationalLaboratories&UniversityoftheVirginIslands

St.CroixCampus(24Oct2018)&St.ThomasCampus(26Oct2018)Unclassified.Distributionunlimited.Materialcontainedhereinrepresentsthesoleopinionoftheauthoranddoes

notnecessarilyrepresenttheviewsoftheU.S.DepartmentofDefenseoritscomponents.

NavalPostgraduateSchool(NPS)America'snationalsecurityresearchuniversity

HistoryHighlights1909 Founded at U.S. Naval Academy

1951 Moved to Monterey, CA Operations Research Curriculum

• Facilitiesofagraduateresearchuniversity

• FacultywhoworkfortheU.S.Navy,withclearances

• Studentswithfreshoperationalexperience

FY2017:• 65M.S.and15Ph.D.programs• 612faculty• 1432residentstudentsincludes

(166international/47countries)• 909distributedlearningstudents

• OperationsResearch(OR)isthescienceofhelpingpeopleandorganizationsmakebetterdecisionsusing– mathematicalmodels,statisticalanalyses,simulations– analyticalreasoningandcommonsensetotheunderstandingandimprovementofreal-worldoperations.

• ORoriginatedduringWorldWarII.ThemilitaryusesORatthestrategic,operational,andtacticallevels.

• BiggestusersofOR:moderncorporations– Supplychainlogistics– Manufacturingandproductionplanning– Scheduling

• NPShastheoldestORinstructionalprogramintheU.S.

OperationsResearchatNPS

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NPSCenterforInfrastructureDefense(CID)OperationsResearchDepartment

DavidAldersonAssociateProfessor,ORDirector,NPSCenterfor

InfrastructureDefensePh.D.,StanfordUniversity,

2003

GeraldBrownDistinguishedEmeritus

Professor,ORMember,NationalAcademy

ofEngineeringPh.D.,U.C.L.A.,1974

W.MatthewCarlyleProfessor&Chair,OR

Ph.D.,StanfordUniversity,1997

JavierSalmerónAssociateProfessor,OR

Ph.D.,UniversidadPolitécnica (Spain),1998

RobertDellProfessor,OR

Ph.D.,S.U.N.Y.Buffalo,1990

DanielEisenbergResearchAssistant

Professor,OR

Ph.D.,ArizonaStateUniversity,2018

DanNussbaumVisitingProfessor,ORChair,NPSEnergy

AcademicGroup

Ph.D.,MichiganStateUniv.,1971

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AlanHowardDeputyDirector,NPSEnergyAcademicGroup

MBA/MIMinInternationalManagement,2000

NPSEnergyAcademicGroup(EAG)JackTempletonProgramManager,NPSEnergyAcademicGroup

MSMDefenseSystemsAnalysis,NPS,2013

WhatisCriticalInfrastructure?• CriticalInfrastructure(CI):“systemsandassets,whetherphysicalorvirtual,

sovitaltotheUnitedStatesthattheincapacityordestructionofsuchsystemsandassetswouldhaveadebilitatingimpactonsecurity,nationaleconomicsecurity,nationalpublichealthorsafety,oranycombinationofthosematters” --Section1016(e)oftheUSAPATRIOTActof2001

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CriticalInfrastructureSystems:NPShasauniqueperspectiveandcapability

• Wehavebeenstudyingcriticalinfrastructurefordecades.

• Welookatourowndomesticinfrastructurethroughtheeyesofintelligentadversaries.

• Wehaveconductedover150“redteamanalyses”toplanattacksonourowninfrastructure(anddeterminehowtomounteffectivehardeninganddefensiveefforts)

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CriticalInfrastructureSystems:NPShasauniqueperspectiveandcapability

GoalsForThisSession• 10keyideas forhowtoassessandimproveoperationalresilienceofcriticalinfrastructures

• OngoingworkinapplyingtheseideastotheUSVI

• Wehavebeenstudyingcriticalinfrastructurefordecades.

• Welookatourowndomesticinfrastructurethroughtheeyesofintelligentadversaries.

• Wehaveconductedover150“redteamanalyses”toplanattacksonourowninfrastructure(anddeterminehowtomounteffectivehardeninganddefensiveefforts)

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Idea#1:Startbyfocusingondeliveryofservices,not mitigationofhazards/threats

• Electricity• Fuels• Transportation• Communications• Water&Wastewater• Emergencyresponse

Whatweneedtodo(operation)

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Idea#1:Startbyfocusingondeliveryofservices,not mitigationofhazards/threats

• Electricity• Fuels• Transportation• Communications• Water&Wastewater• Emergencyresponse

• ExtremeWeather– CoastalFlooding– RainfallFlooding– Wind– Drought

• Humanaccident• Technologicalfailure• Deliberateattack

Whatweneedtodo(operation)

Whatcangowrong(interdiction)

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Idea#1:Startbyfocusingondeliveryofservices,not mitigationofhazards/threats

• Electricity• Fuels• Transportation• Communications• Water&Wastewater• Emergencyresponse

• ExtremeWeather– CoastalFlooding– RainfallFlooding– Wind– Drought

• Humanaccident• Technologicalfailure• Deliberateattack

Whatweneedtodo(operation)

Whatcangowrong(interdiction)

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Idea#1:Startbyfocusingondeliveryofservices,not mitigationofhazards/threats

Idea#2:Avoidgettingstuckonpredefinedthreatscenarios.• SurpriseHappens.Thingswehavenotimagined.• Tunnelvision(onthelastdisaster).Needtobeproactive,notreactive.

“Wewillnotbeabletodeterallterroristthreats,anditisimpossibletodeterorpreventnaturalcatastrophes.Wecan,however,mitigatetheNation’svulnerabilitytoactsofterrorism,otherman-madethreats,andnaturaldisastersbyensuringthestructuralandoperationalresilienceofourcriticalinfrastructureandkeyresources”(p.27)

“Wemustnowfocusontheresilienceofthesystemasawhole– anapproachthatcentersoninvestmentsthatmakethesystembetterabletoabsorbtheimpactofaneventwithoutlosingthecapacitytofunction” (p.28)

U.S.NationalStrategyforHomelandSecurity(2007)

Apolicyshifttoward“operationalresilience”

Most recently: U.S. Presidential Policy Directive (PPD)-21: Critical Infrastructure Security and Resilience, 2013.

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“systemasawhole”and“capacitytofunction”

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“systemasawhole”and“capacitytofunction”

• Alistofassets• Aninterconnected(network)system thatworkstoachieveaparticularfunction

HowtoThinkAboutCriticalInfrastructure(CI)

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“systemasawhole”and“capacitytofunction”

• Alistofassets• Aninterconnected(network)system thatworkstoachieveaparticularfunction

✖✔

HowtoThinkAboutCriticalInfrastructure(CI)

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“systemasawhole”and“capacitytofunction”

• Alistofassets• Aninterconnected(network)system thatworkstoachieveaparticularfunction

✖✔

Wewanttomakeouroperations(publicandprivate)resilienttodisruptiveevents.

Weneedourinfrastructuresystemstocontinuetofunctionevenwhen“badthings”happen.

HowtoThinkAboutCriticalInfrastructure(CI)

Idea#3:Weneedtothinkintermsofsystems.

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• DODDirective3020.40:MissionAssurance(2016)

DODhasrecentlyreorganizeditseffortstoprotectdefense-relatedcriticalinfrastructureunderabroaderprogramofmissionassurance

• Keyrecognition

– Assets worktogetherassystems toprovidefunction

– Functionenablescapability

– Capabilitysupportsmission

• Focusneedstoremainontherelationshipbetweentheinfrastructureassetandthemissionsitsupports

Ashifttoward“operationalresilience”

Idea#3:Weneedtothinkintermsofsystems.

• Electricity• Fuels• Transportation• Communications• Water&Wastewater• Emergencyresponse

• ExtremeWeather– CoastalFlooding– RainfallFlooding– Wind– Drought

• Humanaccident• Technologicalfailure• Deliberateattack

Whatweneedtodo(operation)

Whatcangowrong(interdiction)

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• Electricity• Fuels• Transportation• Communications• Water&Wastewater• Emergencyresponse

• ExtremeWeather– CoastalFlooding– RainfallFlooding– Wind– Drought

• Humanaccident• Technologicalfailure• Deliberateattack

Whatweneedtodo(operation)

Whatcangowrong(interdiction)

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Idea#4:Resilienceisnotaboutwhatyouhave,itsaboutwhatyoudo!Thisisacommonmisperception.(Thinkofsafety asanotherconceptwiththisfeature…)

Idea#5:Takean”operational”perspective

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• Electricity• Fuels• Transportation• Communications• Water&Wastewater• Emergencyresponse

Whatweneedtodo(operation)

Idea#5:Takean”operational”perspective

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• Electricity• Fuels• Transportation• Communications• Water&Wastewater• Emergencyresponse

Whatweneedtodo(operation)

Needtounderstandthedemandsofthepopulation• Demographics• Geography• Populationdensity• Specialneeds

Idea#5:Takean”operational”perspective

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• Electricity• Fuels• Transportation• Communications• Water&Wastewater• Emergencyresponse

Whatweneedtodo(operation)

Needtounderstandthedemandsofthepopulation• Demographics• Geography• Populationdensity• Specialneeds

Movegoods/servicesfromareasofsupplytodemands:• Mustincludeinfrastructure

ownersandoperators• Bothpublicand private!

Idea#5:Takean”operational”perspective

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• Electricity• Fuels• Transportation• Communications• Water&Wastewater• Emergencyresponse

Whatweneedtodo(operation)

Needtounderstandthedemandsofthepopulation• Demographics• Geography• Populationdensity• Specialneeds

Movegoods/servicesfromareasofsupplytodemands:• Mustincludeinfrastructure

ownersandoperators• Bothpublicand private!

Idea#6:Oftenrepresentedasflows throughnetworks.

Idea#5:Takean”operational”perspective

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• Electricity• Fuels• Transportation• Communications• Water&Wastewater• Emergencyresponse

Whatweneedtodo(operation)

Needtounderstandthedemandsofthepopulation• Demographics• Geography• Populationdensity• Specialneeds

Movegoods/servicesfromareasofsupplytodemands:• Mustincludeinfrastructure

ownersandoperators• Bothpublicand private!

Idea#6:Oftenrepresentedasflows throughnetworks.

Idea#7:Measure performance.Definemissionsuccess.

BUT…SystemsAreComplicated,SometimesComplex

• Interactionsoftennon-additiveandnon-intuitive.

• Aneventinonelocationcanoftenaffectthingsthatarefaraway,anditcanbehardtopredicthowthishappens.

• Thecontribution/importanceofasinglecomponenttosystemfunctionmaydependoninteractionswithothercomponents.

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BUT…SystemsAreComplicated,SometimesComplex

• Interactionsoftennon-additiveandnon-intuitive.

• Aneventinonelocationcanoftenaffectthingsthatarefaraway,anditcanbehardtopredicthowthishappens.

• Thecontribution/importanceofasinglecomponenttosystemfunctionmaydependoninteractionswithothercomponents.

Idea#8:Guessingatwhatis“mostcritical”ispronetoerror

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• Whendetermininghowbesttoprotectsystems,anaturalquestionis,“Whatcomponentsaremostcritical?”

• Betteryet:Whichcomponents,iflost,wouldbemostdisruptivetosystemfunction?

Definition:Acomponentiscritical iflosingitwouldsignificantlyreducesystemfunction(relativetothereductionfromlosingothercomponents).

Let’suseahistoricalexampletoillustrate…

Idea#8:Guessingatwhatis“mostcritical”ispronetoerror

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TheRussianRailNetwork(circa1955)

DatafromFigure7of:Harris,T.E.,andRoss,F.S.(1955),FundamentalsofaMethodforEvaluatingRailNetCapacities(SECRET,

declassified1999),RM-1573,RANDCorp.

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WhatisthecapacityoftheUSSRtodelivermaterieltoEuropeviarail?

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2

52

3W 3E 2S

13N

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ORIGIN

ORIGIN

originnodesdestinationnodes minimumcapacitycut

13SB

2

3

9

3

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WhatisthecapacityoftheUSSRtodelivermaterieltoEuropeviarail?

3025.04.2018- Alderson- NPS 14

2

52

3W 3E 2S

13N

12

ORIGIN

ORIGIN

originnodesdestinationnodes minimumcapacitycut

13SB

2

3

9

3

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WhatisthecapacityoftheUSSRtodelivermaterieltoEuropeviarail?

KeyInsight:Thecapacityofanetworkisequaltothesizeofthesmallestbottleneck.(a.k.a.“max-flow,min-cuttheorem”)

Butwhatarcsare“mostvital”?

25.04.2018- Alderson- NPS 14

Findingthe“MostVital”Arc(s)isnottrivial!• Itrequiresyoutoconsidernotonlythecurrentpathsthroughthenetworkbutalsoanyalternatepaths

• Because…thesystemcanadjustitsflowsinresponsetoadisruption!

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Findingthe“MostVital”Arc(s)isnottrivial!• Itrequiresyoutoconsidernotonlythecurrentpathsthroughthenetworkbutalsoanyalternatepaths

• Because…thesystemcanadjustitsflowsinresponsetoadisruption!

Possible“guessingrules”fordeterminingwhatismostvital(Ahuja,Magnanti,andOrlin,“NetworkFlows”,Prentice-Hall,1993)

• Anarchavingthelargestcapacity• Anarccarryingthelargestflowintheoptimalsolution• Anarchavingthelargestcapacityinaminimum-capacitycut• Anymost-vitalarcisinsomeminimum-capacitycut

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Findingthe“MostVital”Arc(s)isnottrivial!• Itrequiresyoutoconsidernotonlythecurrentpathsthroughthenetworkbutalsoanyalternatepaths

• Because…thesystemcanadjustitsflowsinresponsetoadisruption!

Possible“guessingrules”fordeterminingwhatismostvital(Ahuja,Magnanti,andOrlin,“NetworkFlows”,Prentice-Hall,1993)

• Anarchavingthelargestcapacity• Anarccarryingthelargestflowintheoptimalsolution• Anarchavingthelargestcapacityinaminimum-capacitycut• Anymost-vitalarcisinsomeminimum-capacitycut

Ingeneral,noneofthese“guessingrules”work!

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counter-example:guessingtofindmostvitalarc

(15,20)

(5,5) (10,10)

(0,100)

(20,50)(20,50)(5,5) (10,10)

(10,10)1

2

3

4

5

6

7

i j(flow, capacity)

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counter-example:guessingtofindmostvitalarc

(15,20)

(5,5) (10,10)

(0,100)

(20,50)(20,50)(5,5) (10,10)

(10,10)1

2

3

4

5

6

7

i j(flow, capacity) 2minimumcapacitycuts!

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counter-example:guessingtofindmostvitalarc

(15,20)

(5,5) (10,10)

(0,100)

(20,50)(20,50)(5,5) (10,10)

(10,10)1

2

3

4

5

6

7

i j(flow, capacity)

largestcapacityarc

2minimumcapacitycuts!

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counter-example:guessingtofindmostvitalarc

(15,20)

(5,5) (10,10)

(0,100)

(20,50)(20,50)(5,5) (10,10)

(10,10)1

2

3

4

5

6

7

i j(flow, capacity)

largestcapacityarc

arcswithlargestflowinoptimal(maxflow)solution

2minimumcapacitycuts!

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counter-example:guessingtofindmostvitalarc

(15,20)

(5,5) (10,10)

(0,100)

(20,50)(20,50)(5,5) (10,10)

(10,10)1

2

3

4

5

6

7

i j(flow, capacity)

largestcapacityarc

arcswithlargestflowinoptimal(maxflow)solution

2minimumcapacitycuts!

arcswithlargestcapacityinmincapacitycut

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counter-example:guessingtofindmostvitalarc

(15,20)

(5,5) (10,10)

(0,100)

(20,50)(20,50)(5,5) (10,10)

(10,10)1

2

3

4

5

6

7

i j(flow, capacity)

largestcapacityarc

arcswithlargestflowinoptimal(maxflow)solution

2minimumcapacitycuts!

arcswithlargestcapacityinmincapacitycut

mostvitalarc

Ingeneral,youcannotreliablyguess.Instead,determiningamostvitalarcrequiressolvinganetworkinterdictionproblem.

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Idea#9:Useanattack-based(adversarial)perspectiveforplanning.(Thisisalsosometimescalled“redteaming”.)

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OurApproachinaNutshell1. Usingalimitedbudget,wewanttoinvestsothatwe

stillachievemissionsuccessevenwhenbadthingshappen(operationalresilience)

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Idea#9:Useanattack-based(adversarial)perspectiveforplanning.(Thisisalsosometimescalled“redteaming”.)

OurApproachinaNutshell1. Usingalimitedbudget,wewanttoinvestsothatwe

stillachievemissionsuccessevenwhenbadthingshappen(operationalresilience)

2. Tolearnhowto“defend”thesesystems,firstfigureouthowtoattack them

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Idea#9:Useanattack-based(adversarial)perspectiveforplanning.(Thisisalsosometimescalled“redteaming”.)

OurApproachinaNutshell1. Usingalimitedbudget,wewanttoinvestsothatwe

stillachievemissionsuccessevenwhenbadthingshappen(operationalresilience)

2. Tolearnhowto“defend”thesesystems,firstfigureouthowtoattack them

3. TolearnhowtoattackCI,firstlearnhowittooperateit(i.e.,howitworks)

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Idea#9:Useanattack-based(adversarial)perspectiveforplanning.(Thisisalsosometimescalled“redteaming”.)

OurApproachinaNutshell1. Usingalimitedbudget,wewanttoinvestsothatwe

stillachievemissionsuccessevenwhenbadthingshappen(operationalresilience)

2. Tolearnhowto“defend”thesesystems,firstfigureouthowtoattack them

3. TolearnhowtoattackCI,firstlearnhowittooperateit(i.e.,howitworks)

WecalltheseAttacker-DefenderandDefender-Attacker-Defendermodels.

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Idea#9:Useanattack-based(adversarial)perspectiveforplanning.(Thisisalsosometimescalled“redteaming”.)

WecalltheseAttacker-DefenderandDefender-Attacker-Defendermodels.

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Idea#9:Useanattack-based(adversarial)perspectiveforplanning.(Thisisalsosometimescalled“redteaming”.)

•Ithelpstofocusesonsystemoperation.•Ithelpstodiscovervulnerabilities.•Ithelpstouncoverinterdependencies.•Ithelpstothinkaboutmitigation.

Ourexperience:Large-scale,long-terminterruptionsincriticalinfrastructureservicescanbecausedbythingsmuchsmallerthantwoCategory-5hurricanes!

Idea#10:Investingforresiliencecanworkbetterwhenyoutothinkaboutthesystemasawhole.•Hardening(reinforcement)•Redundancy(backups,spares)•Capacityexpansion•Newinfrastructure

Thismeansstudyingmorethanjust“howweactuallydoitnow”.

Itrequireswealsoconsider“howcouldwedoitnow(andinthefuture)”!

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Wehaveusedscoresofthesemodelstoassessresilienceforawiderangeofsystems

OperatorModels• Shortest-pathproblems• Max-flowproblems• Min-costnetworkflowproblems• Multi-commodityflowproblems• Projectschedulingproblems• Linearprograms• Integer-Linearprograms• Nonlinearprograms• Nonlinear-Integerprograms

Applications• Electricpower• Potablewater• Fuelpipelines• Roadwaytransportation• Multi-modalshipping• Ports• Supplychains• Telecommunications

– Underseacables– Wirelessnetworkdesign

• Interdependentinfrastructures

These techniques scale up to realistic size and fidelity, and admit a host of standard models, many already in use by system operators.

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Case Study: Guam Power Authority

Reference: Salmerón, J., Alderson, D., Brown, G., and Wood, R.K., 2012, Resilience Report: The Guam Power Authority Electric Power Grid: Analyzing Vulnerability to Physical Attack (U), Center for Infrastructure Defense Technical Report NPS-OR-12-002, May. Distribution authorized to DoD and DoD Contractors only due to infrastructure vulnerability analysis (10 May 2012). Other requests for this document must be referred to President, Code 261, Naval Postgraduate School, Monterey, CA 93943-5000 via the Defense Technical Information Center, 8725 John J. Kingman Rd., STE 0944, Ft. Belvoir, VA 22060-6218.

Prepared for: Air Force Research Lab (AFRL), Airbase Technologies Division, 139 Barnes Drive, Suite 2, Tyndal Air Force Base, FL 32403-5323.

BothAttacker andDefender Analysis

Guam Power Authority’s transmission system(115-13.8 kV):

~100 buses~50 HV lines~50 transformers10s of substations 10s of generating units:

>550 MW

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Case Study: Hawaii

Reference: Salmerón, J., Alderson, D., and Brown, G., 2018, Resilience Report: Analysis of Hawaiian Electric Power Grid to Physical Attack (U), NPS Technical Report NPS-OR-18-001R, February. Restricted distribution (PCII).

Prepared for: Department of Homeland Security, Infrastructure Protection Division.

Attacker, Defender,&SpareParts Analysis

• 10s buses• ~100 high-voltage AC

transmission lines• no DC lines• ~100 transformers• 10s generating units: total

gen. capacity of ~2,500 MW• Total load: ~1,200 MW

• Can a small number of coordinated attacks inflict significant damage for which repair would require considerable reconstitution time? What is the best means of hardening against such attacks?

• How can a limited stockpile of medium- and high-voltage spare transformers contribute most to mitigating vulnerability, i.e., to “increasing system resilience.”

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CriticalInfrastructureSystems:NPShasauniqueperspectiveandcapability

GoalsForThisSession• 10keyideasforhowtoassessandimproveoperationalresilienceofcriticalinfrastructures

• OngoingworkinapplyingtheseideastotheUSVI

• Wehavebeenstudyingcriticalinfrastructurefordecades.

• Welookatourowndomesticinfrastructurethroughtheeyesofintelligentadversaries.

• Wehaveconductedover150“redteamanalyses”toplanattacksonourowninfrastructure(anddeterminehowtomounteffectivehardeninganddefensiveefforts)

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Ourresearchispartofabroaderteameffort

OurworkintheUSVI:severalrelatedresearchefforts

Effort1 - Modelingandanalysisofinterdependentcriticalinfrastructuresystems

– Energy(emphasisonelectricpower)– Water(emphasisonpotablestorageanddistribution)– Transportation– Telecommunications

Effort2 - SupportfordevelopmentofanewHazardMitigationandResiliencePlan

– inpartnershipwithUVI/VITEMA

Effort3 - Capacitybuilding&workforcedevelopmentprogram– inpartnershipwithUVI

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27Feb2018 ProjectStart(fundsavailable)21Mar remoteparticipationinUSVIEnergyRoundtable26-30Mar 1st NPSsitevisittoSTX,STT11-15Jun 2nd NPSsitevisittoSTX,STT14-15Jun UVI/VITEMAHazardMitigationWorkshop21Sep MSThesisbyLCDRBrendanBunn20Oct Technicalreport(finaldraft)22-26Oct 3rd NPSsitevisittoSTX,STJ,STT

• BunnBB,2018,“AnOperationalModelofInterdependentWaterandPowerDistributionInfrastructureSystems,”M.S.ThesisinOperationsResearch,NavalPostgraduateSchool,Monterey,CA,September2018.

• AldersonDL,BunnBB,EisenbergDA,HowardAH,NussbaumDE,TempletonJC,“InterdependentInfrastructureResilienceintheU.S.VirginIslands:PreliminaryAssessment,”NPSTechnicalReport,NavalPostgraduateSchool,Monterey,CA,October2018(forthcoming).

OurworkintheUSVI:severalrelatedresearchefforts

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228proposedinitiativesacrossavarietyofsectors:• ClimateAnalysis(5)• Energy(17)• PrivateSectorComms (14)• PublicSectorComms (11)• Transportation(24)• Water(11)• SolidWaste andWastewater(26)• HousingandBuildings(11)• Health(21)• VulnerablePopulations(12)• Education(20)• Economy(9)• Non-profit,Philanthropy,and

VoluntaryOrganizations(6)• GovernmentResponse(41)

Lotsofproposedchanges!

OpenQuestions:

• Howtoassesstheimpactofthesechanges(good/bad)?

• Howtoprioritize?

https://www.usvihurricanetaskforce.org/

OurworkintheUSVI:severalrelatedresearchefforts

KeyConcept:TheNeedforanOperationalViewofResilience

ReportContributions:1. Explainingthestructure,function,andtensionsassociatedwithcritical

infrastructurethatwerechronicproblemspriortothehurricanes.2. Documentinghurricaneresponse,recovery,andmitigationactivitiesfor

theseinfrastructuresystemsafterthehurricanes.3. Discussingthesechangesinthecontextofpotentialbarrierstoresilience.

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AldersonDL,BunnBB,EisenbergDA,HowardAH,NussbaumDE,TempletonJC,“InterdependentInfrastructureResilienceintheU.S.VirginIslands:PreliminaryAssessment,”NPSTechnicalReport,NavalPostgraduateSchool,Monterey,CA,October2018(forthcoming).

WefaceseveralbarrierstoresilienceBarrier1:Wedon’tfullyunderstandhowvulnerableweare.• owners,operators,orcommunitieswhomanageinfrastructureoftendo

nothavecompleteknowledgeabouttheirvulnerabilities

Barrier2:Wedon’tknowhowbesttocreateresilience.• Tradeoffs/tensionsbetweendifferentmechanismstoachieveresilience• Prioritizationisdifficult

Barrier3:Wedon’thaveincentivestocreateresilience.• Hardtoinvestinmitigatingsomethingthathasneverhappened• Moralhazard:disincentivesforinvestment

Barrier4:Wedon’tknowhowtogovernforresilience.• Rules/regulationsworkagainstimplementationofdesiredchanges• mismatchbetweeninfrastructuregovernanceandinfrastructureoperation

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Reference:AldersonDL,BunnBB,EisenbergDA,HowardAH,NussbaumDE,TempletonJC,“InterdependentInfrastructureResilienceintheU.S.VirginIslands:PreliminaryAssessment,”NPSTechnicalReport,NavalPostgraduateSchool,Monterey,CA,October2018(forthcoming).

OurworkintheUSVI:severalrelatedresearchefforts

Effort1 - Modelingandanalysisofinterdependentcriticalinfrastructuresystems

– Energy(emphasisonelectricpower)– Water(emphasisonpotablestorageanddistribution)– Transportation– Telecommunications

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Power– WaterInterdependencies

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a morerealistic(USVI)waterdistributionsystem

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IEEE13-buselectricitydistributionnetwork

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BunnBB,2018,“AnOperationalModelofInterdependentWaterandPowerDistributionInfrastructureSystems,”M.S.ThesisinOperationsResearch,NavalPostgraduateSchool,Monterey,CA,September2018.

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Green CayProsperity

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LEGEND

Device TypeRecloser

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Closed

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FEMA_SectorsSTX, 1

STX, 10

STX, 2

STX, 3

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STX, 5

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Feeder 8

Feeder LegendFeeder 01, Three Phase, 7.96743011474609

Feeder 02, Three Phase, 7.96743011474609

Feeder 03, Three Phase, 7.96743011474609

Feeder 04, Three Phase, 7.96743011474609

Feeder 05, Three Phase, 7.96743011474609

Feeder 06, Three Phase, 7.96743011474609

Feeder 09, Three Phase, 14.3999996185303

Feeder 10, Three Phase, 14.3999996185303

Ongoingwork:St.Croixelectric+water

OurworkintheUSVI:severalrelatedresearchefforts

Effort1 - Modelingandanalysisofinterdependentcriticalinfrastructuresystems

– Energy(emphasisonelectricpower)– Water(emphasisonpotablestorageanddistribution)– Transportation– Telecommunications

Effort2 - SupportfordevelopmentofanewHazardMitigationandResiliencePlan

– inpartnershipwithUVI/VITEMA

Effort3 - Capacitybuilding&workforcedevelopmentprogram– inpartnershipwithUVI

67

ContactInformation

• Dr.DavidAldersonDirector,CenterforInfrastructureDefenseNavalPostgraduateSchool831-656-1814,dlalders@nps.eduhttp://faculty.nps.edu/dlalders

• NPSCenterforInfrastructureDefensehttp://www.nps.edu/cid

ReferencesandAcknowledgments• Alderson,D.L.,Brown,G.,Carlyle,W.M.,andWood,R.K.,2017,"Assessingand

ImprovingtheOperationalResilienceofaLargeHighwayInfrastructureSystemtoWorst-CaseLosses," TransportationScience,doi.org/10.1287/trsc.2017.0749.

• Alderson,D.L.,Brown,G.,andCarlyle,W.M.,2015,“OperationalModelsofInfrastructureResilience,” RiskAnalysis35(4):562-586(receivedAwardforBestPaperof2015inRiskAnalysis).

• Alderson,D.L.,G.G.Brown,W.M.Carlyle.2014.“AssessingandImprovingOperationalResilienceofCriticalInfrastructuresandOtherSystems.”A.Newman,J.Leung,eds.,TutorialsinOperationsResearch:BridgingDataandDecision.InstituteforOperationsResearchandManagementScience,Hanover,MD,180-215.

• Alderson,D.L.,G.G.Brown,W.M.Carlyle,L.A.Cox.2013.“Sometimesthereisno‘mostvital’arc:assessingandimprovingtheoperationalresilienceofsystems.”MilitaryOperationsResearch18(1)21-37.

• Brown,G.,Carlyle,M.,Salmerón,J.andWood,K.,2006,“DefendingCriticalInfrastructure,” Interfaces,36,pp.530-544.

ThisresearchwassupportedbytheOfficeofNavalResearch,theAirForceOfficeofScientificResearch,andtheDefenseThreatReductionAgency. 19