| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| ntsb train accident database | 1.36 | 0.4 | 2805 | 80 | 28 |
| ntsb | 1.92 | 0.9 | 3039 | 20 | 4 |
| train | 0.82 | 0.4 | 7885 | 66 | 5 |
| accident | 1.95 | 0.4 | 242 | 29 | 8 |
| database | 0.44 | 0.6 | 7682 | 85 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| ntsb train accident database | 1.27 | 0.8 | 6682 | 14 |
| ntsb railroad accident reports database | 1.32 | 0.1 | 6559 | 56 |
| ntsb accident database ntsb accident reports | 1.12 | 0.6 | 9418 | 51 |
| ntsb rail accident reports | 1.57 | 1 | 8354 | 88 |
| ntsb accident reports railroad | 0.06 | 0.5 | 9959 | 50 |
| ntsb hearing on train accident | 1.06 | 0.8 | 8192 | 68 |
| ntsb accident report database | 1.85 | 0.5 | 111 | 4 |
| ntsb accident database by month | 0.54 | 0.8 | 1400 | 50 |
| ntsb hearing on train crash | 1.06 | 0.6 | 4148 | 44 |
| ntsb accident database search | 1.16 | 0.6 | 3780 | 54 |
| ntsb accident database monthly list | 0.07 | 1 | 3160 | 41 |
| ntsb number of train derailments | 1.9 | 0.8 | 9997 | 65 |
| ntsb train derailment report | 1.28 | 0.4 | 1558 | 82 |
| ntsb accident incident report | 0.72 | 0.3 | 5014 | 70 |
| ntsb initial accident reports | 1.07 | 0.2 | 6760 | 14 |
| ntsb hearing on train disasters | 1.14 | 1 | 1132 | 37 |
| ntsb hearing on train derailment updates | 0.52 | 0.7 | 9413 | 51 |
| ntsb hearing on train collision | 0.75 | 0.3 | 7007 | 29 |
| ntsb hearing on train derailment findings | 0.24 | 0.1 | 348 | 91 |
| ntsb monthly list of accidents | 1.86 | 0.1 | 5320 | 61 |
