Uniform Infrastructure Fields: Definition and Identification
Publication: Journal of Infrastructure Systems
Volume 1, Issue 1
Abstract
The present paper addresses the problem of assessing infrastructure condition using detailed spatial distress data. A new understanding of the spatial behavior of infrastructure distress is presented, and a condition assessment methodology commensurate with the identified behavior is developed. Two deterioration mechanisms are identified. The environmental mechanism describes deterioration as a consequence of causal factors and exhibits both macroscopic and microscopic scales. The interactive mechanism describes deterioration as a result of distress at a location influencing the deterioration of neighboring locations and exhibits a microscopic scale. A nonstationary stochastic spatial model that captures both mechanisms is proposed. Based on this model, a methodology founded on nonparametric cluster analysis and dynamic programming is developed to identify uniformly behaving regions (referred to as fields) within which condition can be estimated accurately. The results of the application of the methodology to a 15-km-long highway facility demonstrate the validity of the spatial model and emphasize the need for correctly identifying the uniform fields.
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Information & Authors
Information
Published In
Journal of Infrastructure Systems
Volume 1 • Issue 1 • March 1995
Pages: 44 - 55
Copyright
Copyright © 1995 American Society of Civil Engineers.
History
Published online: Mar 1, 1995
Published in print: Mar 1995
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