Railway abbreviations have the following meaning
| Railway | Country | Name of railway |
| AT&SF | USA | Atkinson, Topeka & Santa Fe RR |
| Amtrak | USA | American Passenger Railway Corporation |
| BN | USA | Burlington Northern |
| CFL | Luxembourg | Chemin
de Fer Luxembourgois Railway of Luxembourg |
| CSD | Czechoslovakia | State Railway of Czechoslovakia |
| DB | Germany | Deutsche Bundesbahn/Deutsche Bahn AG |
| DSB | Denmark | Danske
Staatsbaner Danish State Railways |
| FS | Italy | Ferrovia
dello Stato Italian State Railways |
| NS | Netherlands | Nederlandse
Spoorwegen Railway of the Netherlands |
| MAV | Hungary | State Railway of Hungary |
| �BB | Austria | �sterreichische
Bundesbahnen Austrian Federal Railways |
| RhB | Switzerland | Rh�tische Bahn, Swiss private railway |
| SBB | Switzerland | Schweizer
Bundesbahnen Swiss Federal Railways |
| SF | USA | Santa Fe RR |
| SJ | Sweden | Sveriges
Jernvegen Swedish Railways |
| SNCF | France | Societ� Nationale
de Chemin de Fer National French Railway Company |
| SNCB | Belgium | Societ� Nationale
de Chemin de Fer Belgique National Belgian Railway Company |
| SP | USA | Southern Pacific RR |
| SZD | Soviet Union | Sovjetskaya
Zhelesnaya Doroga Soviet Railways |
| Thalys | Europe | Joint high-speed (TGV) service of the Belgian, Dutch, French, and German railways. |
| UP | USA | Union Pacific RR |
| WP | USA | Western Pacific RR |