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Edition:Final report; Dec. 1, 2008-Mar. 31, 2011.
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Abstract:This study applies contract bid tabulations and element‐level condition records to develop element‐level actions,
costs for actions, transition probabilities for models of deterioration of bridge elements, and transition probabilities
for improvements to elements due to actions. The information on actions, costs, and transition probabilities is input
to a Pontis BMS bridge database.
The study uses transition probabilities for element deterioration to compute the number of years to possible loss of
safety in bridges, and to compute the number of years for inspection intervals. It examines variations in costs of
actions and deterioration of elements among CDOT regions. A set of software applications was developed to handle
bid tabulations, compute costs of actions, compute transition probabilities, and mediate the steps needed for
movement of data into and out of Pontis BMS.
Implementation: Merge the Pontis bridge database with CDOT’s OnSys bridge database; Develop procedures for element‐level tracking of repair and rehabilitation work on in‐service bridges; Develop tools outside of Pontis for decision support for bridge projects.
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