| System Length (mi) | Answer | % Correct |
|---|---|---|
| 13 | New York City (PATH) | 100%
|
| 14 | New York City (Staten Is) | 100%
|
| 248 | New York City Subway | 100%
|
| 17 | Los Angeles | 98%
|
| 102 | Chicago | 97%
|
| 38 | Boston | 94%
|
| 14.2 | Philadelphia (PATCO) | 93%
|
| 36 | Philadelphia (SEPTA) | 93%
|
| 129 | Washington D.C. | 92%
|
| 119 | San Francisco (Bay Area) | 91%
|
| 47 | Atlanta | 86%
|
| 24 | Miami | 84%
|
| 15 | Baltimore | 78%
|
| 19 | Cleveland | 70%
|
| 10 | San Juan | 31%
|