00941399

Component

http://onlinepubs.trb.org...nepubs/circulars/ec049.pdf

A bridge management system is designed to provide information and useful data for analysis so that bridge engineers can make more consistent, cost-effective, and defensible decisions for the maintenance, rehabilitation, and preservation of bridges. In a bridge management system, problem setting often involves many uncertain, interrelated quantities, attributes, and alternatives derived from information of highly varying quality. Recently, there has been considerable interest in addressing uncertainties in bridge management. This paper proposes the use of a type of Bayesian influence diagram known as a directed acyclic graph (DAG). DAGs express outcomes in terms of combinations of primitive events. The graphical structure of these models also captures the dependency structure among events, which enables the decision maker to exploit conditional independence to reduce specification and computation. The influence diagrams give users a clear view of the variables within the framework of a bridge management system and the relationships among them. Influence diagrams provide an appealing knowledge representation that can express uncertain knowledge, beliefs, and preferences in both qualitative and quantitative forms. With influence diagrams, the question can be addressed of perfect and imperfect information in bridge management system decision making.

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E-C049,
IBMC03-036
IBMC03-041

English

p. 390-404

2003-4

Transportation Research Circular

9th International Bridge Management Conference

Figures (10) ; References (19) ; Tables (1)

Bridge management systems; Decision making; Uncertainty

Directed acyclic graphs; Influence diagrams

Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls

TRIS, TRB

Apr 21 2003 12:00AM

• ASSESSING THE SAFETY AND SERVICEABILITY OF EXISTING HIGHWAY STRUCTURES
• ASSET NEEDS FROM THE BOTTOM UP
• BRIDGE EXPERT ANALYSIS AND DECISION SUPPORT SYSTEM
• BRIDGE MANAGEMENT SYSTEM FOR CITY OF MOSCOW
• BRIDGE MANAGEMENT THROUGH THE INTERNET WITH DANBROWEB
• BRIDGE TESTING TO ENHANCE BRIDGE MANAGEMENT IN DELAWARE
• CONDITION-BASED BRIDGE ASSET VALUATION
• CUSTOMIZATION OF THE PONTIS BRIDGE MANAGEMENT SYSTEM FOR A TRANSIT AGENCY
• DETERMINATION OF BRIDGE DETERIORATION MATRICES WITH STATE NATIONAL BRIDGE INVENTORY DATA
• ECONOMETRIC MODEL FOR PREDICTING DETERIORATION OF BRIDGE DECK EXPANSION JOINTS
• FLORIDA PROJECT-LEVEL MODELS FOR PONTIS
• FORECASTING LIFETIME SAFETY AND SERVICEABILITY FOR MANAGEMENT OF A NETWORK OF HIGHWAY BRIDGES IN COLORADO
• IMPLEMENTATION OF ONTARIO BRIDGE MANAGEMENT SYSTEM
• INTEGRATION OF AASHTO'S BRIDGEWARE PRODUCTS
• LIFE-CYCLE COST APPROACH TO BRIDGE MANAGEMENT IN THE NETHERLANDS
• LIFE-CYCLE MANAGEMENT OF CONCRETE INFRASTRUCTURES FOR IMPROVED SUSTAINABILITY
• MAINTENANCE STRATEGY TO MINIMIZE BRIDGE LIFE-CYCLE COSTS
• METHODOLOGY FOR PREDICTION OF CONDITION OF CONCRETE BRIDGE DECKS AT NETWORK LEVEL
• MONITORING AND PLANS FOR ACTION FOR BRIDGE SCOUR: INSTRUMENTS AND STATE DEPARTMENTS OF TRANSPORTATION EXPERIENCES
• NEW BRIDGE PERFORMANCE MEASURES FOR PRIORITIZING BRIDGES
• PERFORMANCE-BASED PROGRAMMING OF BRIDGES IN NEW JERSEY
• PHYSICAL MODELING OF SCOUR IN BRIDGE MANAGEMENT
• PONTIS BRIDGE MANAGEMENT SYSTEM: STATE OF THE PRACTICE IN IMPLEMENTATION AND DEVELOPMENT
• PONTIS-BASED HEALTH INDEXES FOR BRIDGE PRIORITY EVALUATION
• PREDICTION OF DETERIORATION: START APPLICATION OF DEICING AGENT TAKEN INTO ACCOUNT
• STATEWIDE IMPLEMENTATION OF A BRIDGE MANAGEMENT SYSTEM AS PART OF INTEGRATED ASSET MANAGEMENT IN KENTUCKY
• STRUCTURAL PATCH REPAIR OF CONCRETE STRUCTURES: TOWARD THE DEVELOPMENT OF A RISK-BASED IMPLEMENTATION PROCEDURE
• SUPPLY AND DEMAND SYSTEM APPROACH TO DEVELOPING BRIDGE MANAGEMENT STRATEGIES: COMPARISON WITH TWO EXISTING APPROACHES
• SYNCHRONIZING AN AGENCY'S BRIDGE INFORMATION BETWEEN MULTIPLE VENDOR SYSTEMS: KANSAS DEPARTMENT OF TRANSPORTATION APPROACH
• SYNTHESIS OF ELEMENT CONDITION DATA FOR AGGREGATE ANALYSES IN BRIDGE MANAGEMENT SYSTEMS
• SYSTEM RELIABILITY MODELING IN BRIDGE MANAGEMENT
• TISBO INFRASTRUCTURE MAINTENANCE MANAGEMENT SYSTEM: INTEGRATING INSPECTION REGISTRATION AND MAINTENANCE MANAGEMENT
• UPDATING TIME-DEPENDENT RELIABILITY OF HIGHWAY BRIDGES WITH PONTIS BRIDGE MANAGEMENT SYSTEM INSPECTION RESULTS
• WEB-BASED BRIDGE MANAGEMENT SYSTEM