Infographic: The MLB Metro System (An Amtrak Mashup)
This is a re-plotting of all the cities that are home to Major League Baseball teams. Each MLB city is a metro station. The distance between stations has been scaled against Amtrak's current mileage between cities and made completely straight, unless there is trackage that multiple Amtrak routes run on (e.g. the Texas Eagle and Sunset Limited run on the same trackage between Los Angeles and San Antonio before splitting off to Dallas and Houston). Every Amtrak route that runs between cities is represented. Other routes are not detailed. If multiple routes exist between cities, they are denoted by a split line (e.g. Chicago to Milwaukee is serviced by both the Empire Builder and Hiawatha service), or dashed markings. Cities that are not home to a MLB team aren't stations, but if I could add one it would be New Orleans. The route would be from Atlanta to New Orleans (current Crescent) then to Houston (current Sunset Limited), with a branch from Chicago to New Orleans (current City of New Orleans). This hypothetical is correctly scaled on the map (braggy, I know...).
Interestingly, Phoenix is the largest American metropolitan area not served by Amtrak, although there is coach service via Flagstaff, Arizona. San Francisco, Arlington (Texas), and St. Petersburg do not have direct passenger rail service, but their metro areas (Emeryville/Oakland, Dallas/Forth Worth, and Tampa respectively) are. [SOURCE]
Routes
West Lines
Red Line, Chicago to Seattle - Empire Builder (Chicago to Milwaukee - Hiawatha)
Blue Line, Chicago to Emeryville (Bay Area) - California Zephyr
Silver Line, Chicago to Los Angeles - Southwest Chief
Green Line, Chicago to Los Angeles - Texas Eagle (Chicago to St. Louis - Illinois Service)
Olive Line, St. Louis to Kansas City - Missouri River Runner
Fuchsia Line, Seattle to Los Angeles - Coast Starlight
Teal Line, Los Angeles to San Diego - Pacific Surfliner
Pine Line, Los Angeles to Houston - Sunset Limited
East Lines
Maroon Line, Chicago to Boston/New York - Lake Shore Limited
Brown Line, Chicago to Washington DC - Capitol Limited
Gold Line, Chicago to Washington DC - Cardinal
Dark Green Line, Chicago to Detroit - Wolverine
Violet Line, Pittsburgh to Philadelphia - Pennsylvanian
Pink Line, Toronto to New York City - Maple Leaf
Gray Line, Washington DC to Miami/Tampa - Silver Star or Silver Meteor
Purple Line, Washington DC to Atlanta - Crescent
Aqua Line, Boston to Washington DC - Northeast Corridor (New York City to Washington - Acela Express, Palmeto, Carolinian, and Vermonter, with Pennsylvanian, Silver Star, Silver Meteor, Crescent extensions; New York City to Philadelphia - Keystone service)
Shared Routes
Sunset Limited and Texas Eagle between Los Angeles and San Antonio
Lake Shore Limited and Capitol Limited between Chicago and Cleveland
Lake Shore Limited and Maple Leaf Service between Buffalo/Albany/New York
Crescent and Cardinal between Washington DC and Charlottesville, Virginia