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Redars validation report / Sungbin Cho ... [et al.]

Contributor(s): Cho, Sungbin | Huyck, Charles K | Ghosh, Shubharoop | Eguchi, Ronald T.
Publisher: New York: University at Buffalo, 2006Description: 133 p.ISBN: ISSN 1520295X.Subject(s): RIESGO SISMICO EN CARRETERAS | RIESGO SISMICO EN PUENTES | INGENIERIA SISMICADDC classification: 624.1762
Contents:
This report represents the results of an extensive review and evaluation of the Seismic Risk Assessment (SRA) methodology for highway systems documented in Werner et al. (2000). The research team evaluated the efficacy of all key modules in the REDARS (Risk of Earthquake Damage for Roadway Systems) software program. The modules included bridge damage or fragility, post-earthquake traffic state, transportation, and economic loss. The reader should note that the version of REDARS evaluated in this study has since been updated based largely on the conclusions and recommendations of this report. Some of the key recommendations identified in the study include: 1)uncertainty factors in the bridge fragility module, 2) additional events - beyond the 1994 Northridge earthquake - should be incorporated in the validation and/or calibration of the different loss modules, 3) further investigation of the traffic state model, particularly, in the relationship between link importance and duration of bridge closure should be conducted, 4) the travel demand model should be enhanced so that congestion level becomes a critical factor in establishing demand, 5) a more realistic post-earthquake route choice model should be developed, and 6) other significant cost items should be included in future enhancements of REDARS
List(s) this item appears in: PUENTES
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LIBRO - MATERIAL GENERAL LIBRO - MATERIAL GENERAL Biblioteca Jorge Álvarez Lleras
Colección / Fondo / Acervo / Resguardo 624.1762 R331 (Browse shelf) Ej. 1 1 Available 018039
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Incluye bibliografía p. 101

This report represents the results of an extensive review and evaluation of the Seismic Risk Assessment (SRA) methodology for highway systems documented in Werner et al. (2000). The research team evaluated the efficacy of all key modules in the REDARS (Risk of Earthquake Damage for Roadway Systems) software program. The modules included bridge damage or fragility, post-earthquake traffic state, transportation, and economic loss. The reader should note that the version of REDARS evaluated in this study has since been updated based largely on the conclusions and recommendations of this report. Some of the key recommendations identified in the study include: 1)uncertainty factors in the bridge fragility module, 2) additional events - beyond the 1994 Northridge earthquake - should be incorporated in the validation and/or calibration of the different loss modules, 3) further investigation of the traffic state model, particularly, in the relationship between link importance and duration of bridge closure should be conducted, 4) the travel demand model should be enhanced so that congestion level becomes a critical factor in establishing demand, 5) a more realistic post-earthquake route choice model should be developed, and 6) other significant cost items should be included in future enhancements of REDARS

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