AMTK
| Amtrak | 19 |
LI
| Long Island Rail Road Company | 3 |
MARC
| Maryland Transit Administration | 1 |
MBTA
| Massachusetts Bay Transit Authority | 1 |
ME
| Morristown & Erie Railroad | 1 |
MNCR
| Metro North Commuter Railway | 1 |
MNCW
| Metro-North Commuter Railroad | 2 |
NHIR
| New Hope & Ivyland | 3 |
NJT
| New Jersey Transit | 90 |
SPAX
| Southeastern Pennsylvania Transportation (SEPTA) | 9 |
TRCX
| Florida Tri-Rail | 4 |