The Association of American Railroads has added to its website an interactive map that allows any user to take a “snap-shot” of information about railroads in a given location. AAR says the map is active for all states (including Hawaii, which has “no freight rail activity,” the map duly notes).
A state-by-state breakdown includes pie charts, divided by commodity category, for both traffic originating in a given state and ending up in that state. Other data within a given state, including freight railroad miles, number of freight railroads in operation, and number for rail employees, also is listed.
The map is available at http://www.aar.org/incongress/railroadsstates.aspx.