| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| transportation research record issn | 1.09 | 0.6 | 2595 | 85 | 35 |
| transportation | 1.74 | 0.4 | 8600 | 82 | 14 |
| research | 0.39 | 0.2 | 3744 | 89 | 8 |
| record | 0.82 | 0.9 | 7214 | 58 | 6 |
| issn | 1.97 | 0.4 | 1885 | 31 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| transportation research record issn | 1.94 | 0.1 | 8083 | 71 |
