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Values of reward functions for different types of costs in the unit of USD 10,000.
| Type | Cases | Value |
|---|---|---|
| Maintenance cost | Do nothing | 0 |
| Pigging | −3.5 | |
| Inhibitor | −13 | |
| Coating | −80 | |
| Replacement | −160 | |
| Failure cost | Leakage failure | −160 × 3 = −480 |
| Rupture failure | −160 − 1600 = −1760 | |
| Life extension reward | Life extension reward per month | +7 |
