SAMARIS - WP12 SAMARIS - WP12

Strategies for Rehabilitation of Highway Structures

Mid-Term Review

Partners: TRL, ZAG, UCD, EPFL July 04

PartnersPartners

• TRLTRL• Richard WoodwardRichard Woodward• Bill McMahonBill McMahon• Malcolm MckenzieMalcolm Mckenzie

• ZAGZAG• Ales ZnidaricAles Znidaric

• UCDUCD• Mark RichardsonMark Richardson

• EPFLEPFL• Emmanuel DenariEmmanuel Denariéé

TasksTasks

• Task 12.1 Task 12.1 Description of the Description of the problemproblem

• Task 12.2 Task 12.2 Review of other workReview of other work

• Task 12.3 Task 12.3 Development of Development of guidelines.guidelines.

Task 12.1Task 12.1

• Inception ReportInception Report

• Define scientific QA proceduresDefine scientific QA procedures

• Review of methods available for the Review of methods available for the rehabilitation of highway structures rehabilitation of highway structures (M2)(M2)

• Review of strategiesReview of strategies

• FrangopolFrangopol

• Branco BrittoBranco Britto

• BRIMEBRIME

• BAPS (Highways Agency)BAPS (Highways Agency)

• NORECONNORECON

• Non-technical issuesNon-technical issues

Task 12.2 Review of Other Work (M6)

IssuesIssues

• DefinitionsDefinitions

• Two approachesTwo approaches

• RigorousRigorous

• QualitativeQualitative

• Selection of suitable repair methods (life etc)Selection of suitable repair methods (life etc)

• Contact with RehabconContact with Rehabcon

Rigorous ApproachRigorous Approach• Sum all costs:Sum all costs:

• InitialInitial

• Inspection Inspection

• MaintenanceMaintenance

• RepairsRepairs

• FailureFailure

• ReplacementReplacement

• Environmental/socialEnvironmental/social

IssuesIssues

• DefinitionsDefinitions

• Two approachesTwo approaches

• RigorousRigorous

• QualitativeQualitative

• Selection of suitable repair methods (life etc)Selection of suitable repair methods (life etc)

• Contact with RehabconContact with Rehabcon

Rehabcon: Repair of Concrete Rehabcon: Repair of Concrete StructuresStructures

Non-technical issuesNon-technical issues

Client needsEnvironmental

factorsEconomic factors

Functional factors

Socio-culturalfactors

TasksTasks

• Task 12.1 Task 12.1 Description of the Description of the problem - problem - CompleteComplete

• Task 12.2 Task 12.2 Review of other work - Review of other work - CompleteComplete

• Task 12.3 Task 12.3 Development of Development of guidelines.guidelines.

Task 12.3 Development of GuidelinesTask 12.3 Development of Guidelines

• Collect case studiesCollect case studies

• Determine criteria in different countriesDetermine criteria in different countries

• Investigate other methods for decision Investigate other methods for decision makingmaking

• Liaise with WPs 13-15Liaise with WPs 13-15

• Draft GuidelinesDraft Guidelines

Case StudiesCase Studies• Name of structure Name of structure 

• Description - any special featuresDescription - any special features

• Reason for rehabilitation Reason for rehabilitation 

• Options considered Options considered 

• Selected option – and reasonsSelected option – and reasonsAleje Jerozolimskie Aleje Jerozolimskie VViaduct, iaduct,

WarsawWarsaw

Criteria in Different CountriesCriteria in Different Countries

• WP members to provide information on WP members to provide information on criteria in their countriescriteria in their countries

• Contact road administrations through Contact road administrations through FEHRLFEHRL

Other Methods for Decision Other Methods for Decision MakingMaking

• Value managementValue management

• Concepts being developed for FORMATConcepts being developed for FORMAT

• Genetic algorithmsGenetic algorithms

• Multi-criteria decision makingMulti-criteria decision making

Develop GuidelinesDevelop Guidelines

• The decision making process - what needs The decision making process - what needs to be taken into account and how the to be taken into account and how the different influences are balanced.different influences are balanced.

• The information needed to inform the The information needed to inform the decision making - this links to WP15.decision making - this links to WP15.

• The options available – WP13 & WP14 The options available – WP13 & WP14 examples.examples.

Changes - 1Changes - 1

D31 Change title from: D31 Change title from:

Guidelines on selection Guidelines on selection and useand use of of innovative innovative materials materials for the for the rehabilitation of highway structuresrehabilitation of highway structures

toto

Guidelines on the selection of innovative Guidelines on the selection of innovative techniquestechniques for the rehabilitation of for the rehabilitation of concreteconcrete highway structures highway structures

ProgrammeProgramme

Case studiesCase studies Months 13 – 30Months 13 – 30

SurveySurvey Months 15 – 24Months 15 – 24

Alternative methodsAlternative methods Months 13 – 33Months 13 – 33

Liaise with WPs 13-15Liaise with WPs 13-15 Months 13 – 36Months 13 – 36

Outline GuidelinesOutline Guidelines Months 13 – 24Months 13 – 24

Draft guidelinesDraft guidelines Months 25 – 36Months 25 – 36

Planned WorkPlanned Work• Continue to collect case studiesContinue to collect case studies

• Determine criteria for decision in different Determine criteria for decision in different countriescountries

• Investigate applicability of other decision making Investigate applicability of other decision making criteriacriteria

• Investigate applicability of Value ManagementInvestigate applicability of Value Management

• Liaison with FORMATLiaison with FORMAT

• Maintain liaison with WPs 13 – 15Maintain liaison with WPs 13 – 15

• Develop GuidelinesDevelop Guidelines