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A Bridge Management System Module for the Selection of Rehabilitation and Replacement Projects

by Jos? Weissmann, Univ of Texas at Austin, United States,
Robert Harrison, Univ of Texas at Austin, United States,
N. H. Burns, Univ of Texas at Austin, United States,
W. R. Hudson, Univ of Texas at Austin, United States,



Document Type: Proceeding Paper

Part of: Microcomputer Applications in Transportation III

Abstract:

A procedure, developed for the state of Texas is reported, which determines an allocation budget for bridge replacement and rehabilitation projects, using multi-attribute criteria and user-friendly computer programs. The system is a two level closed loop procedure based on national bridge inventory data and addresses both state and district level concerns. One state level program determines those bridge projects meeting FHWA financing criteria while second program takes this subset and applies specific state criteria for project ranking and prioritization. The user of this module can rank the candidate projects using a multi-attribute technique and can complement this with an automatic qualification process based on user defined threshold values. The multi-attribute approach uses statistical techniques applied to the entire state bridge population. Therefore, as this data set is regularly updated in accordance with FHWA requirements, it captures both recent deterioration and improvements to structures. A district reporting program incorporates regional knowledge of structures and their condition into the decision-making process.

Subject Headings: Maintenance and operation | Bridge management | Highway bridges | Bridge engineering | Bridges | Rehabilitation | Project management

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