Delphi Study on Bridge Condition Rating and Effects of Improvements
Publication: Journal of Transportation Engineering
Volume 117, Issue 3
Abstract
As part of an effort to develop guidelines for appraising bridge improvement needs, a Delphi study was conducted to seek opinions from bridge inspectors and engineers in the Indiana Department of Transportation (INDOT). The specific objectives of the study were to: (1) Establish relationships between subjective bridge condition ratings and the FHWA's numeric ratings; (2) assess relationships between the subjective rating and the severity and extent of distresses; (3) find relationships between the numeric condition rating and the expected remaining service life of bridges; and (4) estimate the effect of improvements upon the numeric condition rating and expected remaining service life of bridge components. The perception of bridge condition and the interpretation of FHWA's numeric condition rating varied among the bridge inspectors. The Delphi rounds helped to evaluate the amount of variation and subsequently to decrease it. As for the remaining service life of bridges, results from the Delphi analysis and the statistical analysis showed similarities.
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References
1.
The Delphi methods: Techniques and applications. (1975). H. A. Linstone and M. Turoff, eds., Addison‐Wesley Publishing Company, Inc., Reading, Mass.
2.
Dickey, J. W., and Watts, T. M. (1978). Analytic techniques in urban and regional planning. McGraw‐Hill Book Co., Inc., New York, N.Y., Chapter 13.
3.
Olsen, S. A. (1982). Group planning and problem solving methods in engineering management. John Wiley and Sons, New York, N.Y., Chapter 4.
4.
Recording and coding guide for the structure inventory and appraisal of the nation's bridges. (1979). Federal Highway Administration (FHWA), Department of Transportation, Washington, D.C.
5.
Saito, M. (1988). “The development of a state‐wide network level bridge management system,” thesis presented to Purdue University, at West Lafayette, Ind., in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
6.
Weyers, R. E., Cady, P. D., and Canelos, J. (1987). “Costs and lives of bridge maintenance and rehabilitation procedures by expert opinion.” Proc., 4th Annual Int. Bridge Conf., Pittsburgh, Pa.
Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 117 • Issue 3 • May 1991
Pages: 320 - 334
Copyright
Copyright © 1991 ASCE.
History
Published online: May 1, 1991
Published in print: May 1991
Authors
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