Operational Priority Index by service failure cluster (components max-normalized)
| Failure cluster | Frequency (F) | Negativity (N) | Visibility (V) | OPI | Rank |
|---|---|---|---|---|---|
| Comfort & Cleanliness | 1.000 | 0.577 | 0.913 | 0.527 | 1 |
| Staff & Communication | 0.584 | 0.676 | 0.902 | 0.357 | 2 |
| Ticketing & Refunds | 0.927 | 0.513 | 0.739 | 0.351 | 3 |
| Delay & Disruption | 0.436 | 0.879 | 0.705 | 0.271 | 4 |
| Safety & Security | 0.234 | 1.000 | 1.000 | 0.234 | 5 |
| Crowding & Capacity | 0.185 | 0.580 | 0.966 | 0.104 | 6 |
| Accessibility | 0.105 | 0.590 | 0.953 | 0.059 | 7 |
| Failure cluster | Frequency (F) | Negativity (N) | Visibility (V) | OPI | Rank |
|---|---|---|---|---|---|
| Comfort & Cleanliness | 1.000 | 0.577 | 0.913 | 0.527 | 1 |
| Staff & Communication | 0.584 | 0.676 | 0.902 | 0.357 | 2 |
| Ticketing & Refunds | 0.927 | 0.513 | 0.739 | 0.351 | 3 |
| Delay & Disruption | 0.436 | 0.879 | 0.705 | 0.271 | 4 |
| Safety & Security | 0.234 | 1.000 | 1.000 | 0.234 | 5 |
| Crowding & Capacity | 0.185 | 0.580 | 0.966 | 0.104 | 6 |
| Accessibility | 0.105 | 0.590 | 0.953 | 0.059 | 7 |
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