| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| ntsb accident reports railroad | 1.08 | 0.8 | 4247 | 30 | 30 |
| ntsb | 0.71 | 0.6 | 5865 | 32 | 4 |
| accident | 1.27 | 0.7 | 3156 | 37 | 8 |
| reports | 1.95 | 0.6 | 4816 | 56 | 7 |
| railroad | 1.99 | 0.4 | 338 | 8 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| ntsb accident reports railroad | 1.68 | 1 | 6247 | 79 |
