| Canadian & US Roadnames |
| ATSF: | Atchinson, Topeka & Santa Fe Called-Santa Fe |
| BCR: | British Columbia Railway |
| B&D: | Baltimore & Ohio |
| BN: | Burlington Northern |
| BNSF: | Burlington Northern Santa Fe (1996 Merger) |
| C&O: | Chesapeake & Ohio |
| CB&Q: | Chicago, Burlington & Quincy |
| CN: | Canadian National |
| CNR: | Canadian National Railroad |
| CNJ: | Central Railroad of New Jersey/Jersey Central |
| CNW: | Chicago & North Western |
| CP: | Canadian Pacific |
| CPR: | Canadian Pacific Railroad |
| CR: | Conrail |
| CSX: | CSX Transportation |
| D&H: | Delaware & Hudson |
| DRGW: | Donver & Rio Grande Western Called-Rio Grande |
| EL: | Erie Lackawanna (Also E-L in some cases) |
| GN: | Great Northern |
| IC: | Illinois Central |
| L&N: | Louisviife & Nashville |
| LS&I: | Lake Superior & Ishpeming |
| LY: | Lehigh Valley |
| MILW: | Chicago, Milwaukee, St. Paul & Pacific Called-Milwaukee Road |
| MKT: | Missouri, Kansas, Texas Called-Katy |
| MON: | Chicago, Indianapolis & Louisville Called-Monon |
| MP: | Missouri Pacific MOPAC |
| MOW: | Maintenance-Of-Way |
| N&W: | Norfolk & Western |
| NH: | New York, New Haven & Hartford Called-New Haven |
| NKP: | New York, Chicago & St. Louis Called-Nickel Plate Road |
| NdeM: | National de MexicoNacionales de Mexico |
| NP: | Northern Pacific |
| NS: | Norfolk Southern |
| NYC: | New York Central |
| PFE: | Pacific Fruit Express |
| PRR: | Pennsylvania Rail Road |
| RDG: | Reading |
| ROCK: | Chicago, Rock island & Pacific Called-Rock Island |
| SOO: | Minneapolis, St. Paul & Saulte St. Marie Called-Soo line |
| SOU: | Southern Railway |
| SSW: | St. Louis Southwestern (Cotton Belt) |
| SP: | Southern Pacific |
| T&P: | Texas Pacific |
| UP: | Union Pacific |
| WC: | Wisconsin Central Limited |
| WM: | Western Maryland |
| A&NR: | Angelina& Neches River railroad co. |
| A&StAB= Bay Line: | Atlanta & St. Andrews Bay |
| A&W: | Atlantic & Western |
| AA: | Ann Arbor |
| Alaska: | Alaska railroad |
| Amtrak: | the American Federal Transit Authority, passenger only |
| ACL: | Atlantic Coast Lines |
| AC: | Algoma Central |
| AN: | Apalachicola Northern |
| AT&SF: | Atkinson, Topeka & Santa Fé |
| Auto train: | Auto train Corporation |
| B&A: | Bangor & Aroostook |
| B&LE: | Bessemer & Lake Erie |
| B&M: | Boston & Maine |
| B&O: | Baltimore & Ohio |
| Bay Line = A&StAB: | Atlanta & St. Andrews Bay |
| BC-rail: | British Columbia Rail |
Birminghamsouthern
|
| BM: | Boston & Maine |
| BM&LP: | Black Mesa & Lake Powell |
| BN: | Burlington Northern |
| BNSF: | Burlington Northern Santa Fé |
| Burlington (Route) = CB&Q: | Chicago, Burlington & Quincy |
| C&EI: | Chicago & Eastern Illinois |
| C&IM: | Chicago & Illinois Midland |
| C&NW: | Chicago & North Western |
| C&O: | Chesapeake & Ohio |
| C&WC: | Charleston & Western Carolina |
| CalTrain: | California DOT (department Of Transportation) |
| CB: | Cotton Belt |
| CB&Q: | Chicago, Burlington & Quincy |
| CGW: | Chicago Great Western |
| Chessie: | Chessie System |
| CN: | Canadian National |
| CNJ: | Central railroad of New Jersey |
| CISCo: | Carnegie Illinois Steel Corp. |
| CP: | Canadian Pacific |
| CP-rail: | Canadian Pacific Rail |
| CR: | Conrail |
| CRR: | Clinchfield Railroad |
| CT: | Chattanooga traction |
| D&H: | Delaware & Hudson |
| D&MM: | Dansville & Mount Morris railroad |
| D&RGW: | Denver & Rio Grande Western |
| D&S: | Durham & Southern |
| DL&W: | Lackawanna |
| DT&I: | Detroit, Toledo & Ironton |
| DUD&T: | Duluth Union Depot & Transfer |
| EC&H: | East Camden & Highland |
| EL: | Erie Lackawanna |
| Erie: | Erie |
| EStLJ: | East St. Louis Junction railroad |
| F&P: | Fordyce & Princeton |
| FCP: | FerroCarril del Pacifico (Mexico) |
| FEC: | Florida East Coast |
| Frisco= SLSF: | St. Louise & San Francisco |
| G&W: | Genesee & Wyoming |
| GB&W: | Green Bay & Western |
| GM&O: | Gulf, Mobile & Ohio |
| GN: | Great Northern railway |
| GO transit: | Government of Ontario, Toronto commuter service |
| GT: | Grand Trunk |
| GTW: | Grand Trunk Western |
| H&B: | Hampton & Branchville |
| IC: | Illinois Central railroad |
| ICG: | Illinois Central Gulf |
| ICRR: | Illinois Central railroad |
| Katy: | Missouri Kansas Texas |
| KCS: | Kansas City Southern |
| L&N: | Louiseville & Nashville |
| LI=LIRR: | Long Island Railroad |
| LS: | Louisiana Southern |
| LS&IRR: | Lake Superior & Ishpeming Railroad |
| LV: | Lehigh Valley |
| MARC: | MARyland Commuter, Department Of Transportation |
| MBTA: | Massachussetts Bay Transportation Authority (San Francisco) |
| MC: | Maine Central |
| MCRR: | Monongahela Connecting Railroad |
| METRA: | Metropolitan Transportation Authority (Chicago) |
| Milw: | Milwaukee Road |
| MKT: | Missouri Kansas Texas |
| MN&S: | Minneapolis, Northfield & Southern |
| MON: | Monon |
| MoPac: | Missouri Pacific lines |
| MP: | Missouri Pacific lines |
| N&W: | Norfolk & Western |
| NAR: | Northern Alberta Railroad |
| ND&W: | Notre Dame & Western |
| NdeM: | Ferrocarriles Nacionales de Mexico |
| New Haven: | New York, New Haven & Hartford Railroad |
| NH : | New York, New Haven & Hartford Railroad |
| NJ DOT: | New Jersey Department of Transportation |
| NJT: | New Jersey Transit |
| NKP= NYC&StL: | Nickel Plate Road |
| NO: | Northeast Oklahoma railway |
| NP: | Northern Pacific |
| NS: | Norfolk Southern |
| NYC: | New York Central system |
| OC&E: | Oregon, California & Eastern |
| OIMCo: | Oliver Iron Mining Co. |
| OP&E: | Oregon Pacific & Eastern |
| P&N: | Piedmont & Northern |
| P&PU: | Peoria & Pekin Union |
| P&W: | Providence & Worcester |
| PA: | Port Authority of Allegheny County Commuter |
| PC: | Penn Central |
| PEB: | Port Everglades Belt |
| PGE: | Pacific Great Eastern |
| PM: | Pere Marquette |
| PRR: | Pennsylvania Railroad |
| QNS&L: | Quebec North Shore & Labrador |
| R&SR: | Roberval & Saguenay Railway |
| RDG: | Reading Lines |
| RF&P: | Richmond, Fredericksberg & Potomac |
| Rio Grande: | Denver & Rio Grande Western |
| RI: | Rock Island |
| RTA: | Regional Transportation Authority |
| SAL: | Seaboard Air Line |
| SBD: | Seaboard System |
| SCL: | Seaboard Coast Line |
| SF: | Santa Fé |
| SLSF= Frisco: | St. Louise & San Francisco |
| SOO: | Soo-Line |
| Southern: | Southern Railroad |
| SP: | Southern Pacific |
| SP&S: | Spokane, Portland & Seattle |
| TB: | Twin Branch railroad |
| TN: | Texas & Northern |
| TO&E: | Texas, Oklahoma & Eastern |
| TP&W: | Toledo, Peoria & western |
| UM&P: | Upper Merion & Plymouth railroad |
| UP: | Union Pacific |
| USATC: | U.S. Army Transportation Corps |
| USP: | U.S. Potash Co. |
| VIA Rail: | Canadian Transit Authority, passenger only |
| WA&G: | Wellsville, Addison & Galeton |
| WAB: | Wabash |
| WC: | Wisconsin Central |
| WFU: | Western Fuel |
| WM: | Western Maryland |
| WP: | Western Pacific |
| WP&Y: | White Pass & Yukon |
