BAR
| Bangor & Aroostook | 2 |
BN
| Burlington Northern | 2 |
CN
| Canadian National Railways | 3 |
CNA
| Canadian National Railways | 1 |
CRLE
| Coe Rail Incorporated | 3 |
CSX
| CSX Railroad | 1 |
FBOX
| TTX Company | 9 |
NS
| Norfolk Southern | 1 |
TR
| Tomahawk Railway L.P. | 4 |
WC
| Wisconsin Central | 1 |
YKR
| York Rail | 1 |