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Application of partial order to stream channel assessment at bridge infrastructure for mitigation management
- Newlin, Jessica T., Patil, Ganapati P.
- Environmental and ecological statistics 2010 v.17 no.4 pp. 437-454
- infrastructure, prioritization, stream channels, United States
- Many environmental systems and infrastructure systems are monitored using a set of indicator values that assess several aspects of site condition. The values of different indicators often convey different comparative messages for the study sites. The comparability between sites is analyzed within the theory of partially-ordered sets and visualized with Hasse diagrams. This paper demonstrates that properties of partially-ordered sets and the conversion of indicator scores into a rank matrix provide a manager or decision-maker with valuable information that would be lost if the monitored indicator data were aggregated only into a single index. Stream stability assessment data from 49 bridge crossing sites in the United States are used to demonstrate these techniques in prioritization and identification of restoration and maintenance needs of stream channels at bridge crossings.