| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what is a subway system | 1.43 | 0.8 | 8272 | 77 |
| what is a subway system in a city called | 1.89 | 0.3 | 5325 | 53 |
| new york subway system | 0.96 | 0.4 | 4007 | 28 |
| nyc subway system | 0.06 | 0.9 | 5879 | 80 |
| boston subway system | 0.19 | 0.4 | 5063 | 27 |
| london subway system | 0.69 | 0.5 | 6942 | 35 |
| chicago subway system | 0.69 | 1 | 2178 | 36 |
| new york city subway system | 1.28 | 0.9 | 209 | 20 |
| paris subway system | 0.58 | 0.9 | 7143 | 85 |
| toronto subway system | 0.79 | 0.1 | 4330 | 68 |
| subway system | 0.97 | 0.9 | 4055 | 93 |
| subway systems crossword clue | 0.81 | 0.9 | 1080 | 88 |
| subway system washington dc | 1.16 | 0.3 | 9386 | 71 |
| subway system dc | 1.23 | 0.1 | 2862 | 9 |
| subway system nyc map | 0.46 | 0.8 | 8468 | 85 |
| subway system los angeles | 1.44 | 1 | 8984 | 18 |
| subway system in a city | 0.49 | 0.4 | 8344 | 92 |
| subway system in tokyo | 0.76 | 0.7 | 564 | 84 |
| subway systems around the world | 1.44 | 0.7 | 3732 | 83 |
