Maintaining bridge decks for the long run
Decks are colored by NBI rating, 9 (new) to 4 or below (poor). The top 12 follow the optimal policy, the bottom 12 a rule of thumb, with the same random draws.
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Year
Optimal policy, cost so far
Baseline, cost so far
Poor decks now (optimal / baseline)
Recorded runs; nothing is optimized in the browser. Deterioration counted from NBI deck ratings, 1993 to 2019 (MUSTEM mirror); costs from Saifullah et al.; repair effects assumed; 3% discount.