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Title: USER COST MODEL FOR BRIDGE MANAGEMENT SYSTEMS
Accession Number: 00795299
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: User cost models are used in bridge management systems to quantify, in economic terms, the potential safety and mobility benefits of functional improvements to bridges. One component of many such models is a formula to predict traffic accident risk on the basis of bridge characteristics such as roadway width and approach roadway alignment. A critical analysis of the user cost model used in AASHTO's Pontis and Bridgit systems found that the model was overly sensitive to extremes of roadway width, yielding unrealistically high benefit estimates. A new model was developed using Florida data on bridge characteristics and traffic accidents. The new model has superior behavior and statistical characteristics on a full inventory of state highway bridges. Since it relies solely on National Bridge Inventory data items, the model is readily transferable to many different bridge management systems.
Supplemental Notes: This paper appears in Transportation Research Record No. 1697, Maintenance and Management of Bridges and Pavements.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Thompson, P DSoares, RChoung, H JNajafi, F TKerr, RPagination: p. 6-13
Publication Date: 2000
Serial: ISBN: 030907150X
Features: References
(10)
; Tables
(5)
TRT Terms: Identifier Terms: Uncontrolled Terms: Geographic Terms: Subject Areas: Bridges and other structures; Design; Economics; Highways; Maintenance and Preservation; Safety and Human Factors; I24: Design of Bridges and Retaining Walls; I61: Equipment and Maintenance Methods
Files: TRIS, TRB, ATRI
Created Date: Jul 17 2000 12:00AM
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