CNSM
| CHICAGO NORTH SHORE & MILWAUKEE RWY | 2 |
CNW
| Chicago & Northwestern | 3 |
CSS
| Chicago South Shore And South Bend | 3 |
CTA
| Chicago Transit Authority | 2 |
EJE
| Elgin Joliet and Eastern | 2 |
MILW
| Milwaukee Road | 4 |
NP
| Northern Pacific | 1 |
RMSX
| Pandrol Jackson Incorporated | 23 |
SOO
| Soo Line | 2 |
SPAX
| Southeastern Pennsylvania Transportation (SEPTA) | 1 |
UP
| Union Pacific Railroad Company | 1 |
VR
| Valdosta Railway | 1 |