Carrier violations or crashes are weighted by time and severity to produce a measure for that carrier in each BASIC. The measure is then used to assign that carrier to a percentile rank containing carriers’ information in similar safety event groups. Expand for more information.
Carrier violations or crashes are weighted by time and severity to produce a measure for that carrier in each BASIC. The measure only considers individual performance based on 24 months of data, with a measure of 0 indicating best performance. The measure is then used to assign that carrier to a percentile rank containing carriers’ information in similar safety event groups. The graph below shows how the carrier’s measure correlates with its percentile rank over a selected period of time.
| Measure | Percentile |
| 0 | 0 |
| 0.34 | 1 |
| 0.45 | 2 |
| 0.59 | 3 |
| 0.66 | 4 |
| 0.74 | 5 |
| 0.82 | 6 |
| 0.90 | 7 |
| 0.96 | 8 |
| 1.02 | 9 |
| 1.09 | 10 |
| 1.15 | 11 |
| 1.21 | 12 |
| 1.28 | 13 |
| 1.33 | 14 |
| 1.39 | 15 |
| 1.44 | 16 |
| 1.50 | 17 |
| 1.56 | 18 |
| 1.61 | 19 |
| 1.66 | 20 |
| 1.71 | 21 |
| 1.76 | 22 |
| 1.82 | 23 |
| 1.87 | 24 |
| 1.91 | 25 |
| 1.96 | 26 |
| 2.02 | 27 |
| 2.07 | 28 |
| 2.13 | 29 |
| 2.19 | 30 |
| 2.24 | 31 |
| 2.29 | 32 |
| 2.33 | 33 |
| 2.38 | 34 |
| 2.44 | 35 |
| 2.51 | 36 |
| 2.56 | 37 |
| 2.60 | 38 |
| 2.66 | 39 |
| 2.73 | 40 |
| 2.78 | 41 |
| 2.83 | 42 |
| 2.89 | 43 |
| 2.95 | 44 |
| 3.02 | 45 |
| 3.07 | 46 |
| 3.15 | 47 |
| 3.21 | 48 |
| 3.28 | 49 |
| 3.35 | 50 |
| 3.41 | 51 |
| 3.48 | 52 |
| 3.56 | 53 |
| 3.64 | 54 |
| 3.72 | 55 |
| 3.78 | 56 |
| 3.86 | 57 |
| 3.95 | 58 |
| 4.04 | 59 |
| 4.12 | 60 |
| 4.20 | 61 |
| 4.30 | 62 |
| 4.38 | 63 |
| 4.47 | 64 |
| 4.56 | 65 |
| 4.66 | 66 |
| 4.75 | 67 |
| 4.86 | 68 |
| 4.99 | 69 |
| 5.11 | 70 |
| 5.24 | 71 |
| 5.39 | 72 |
| 5.51 | 73 |
| 5.65 | 74 |
| 5.79 | 75 |
| 5.94 | 76 |
| 6.14 | 77 |
| 6.31 | 78 |
| 6.52 | 79 |
| 6.77 | 80 |
| 7.00 | 81 |
| 7.21 | 82 |
| 7.46 | 83 |
| 7.84 | 84 |
| 8.16 | 85 |
| 8.54 | 86 |
| 8.87 | 87 |
| 9.35 | 88 |
| 9.88 | 89 |
| 10.46 | 90 |
| 11.18 | 91 |
| 12.11 | 92 |
| 13.12 | 93 |
| 14.37 | 94 |
| 15.65 | 95 |
| 17.61 | 96 |
| 20.34 | 97 |
| 25.22 | 98 |
| 37.73 | 99 |
| 240.00 | 100 |