AA
| Ann Arbor | 1 |
AGR
| Alabama and Gulf Coast | 1 |
BN
| Burlington Northern | 1 |
CO
| Chesapeake & Ohio | 1 |
CPAA
| Canadian Pacific Railway | 1 |
CR
| Conrail | 2 |
GTW
| Grand Trunk Western | 2 |
KCS
| Kansas City Southern | 1 |
MDW
| Minnesota Dakota and Western Railway Com | 2 |
MRL
| Montana Rail Link | 1 |
NW
| Norfolk & Western | 1 |
PSMX
| Esco Corporation | 1 |
SMW
| St Marys Railway West LLC | 1 |
SP
| Southern Pacific | 1 |
SRY
| Southern Railway of British Columbia Lim | 1 |
WLO
| Waterloo Railway Company (Illinois Central) | 1 |