A & S – Alton and Southern (St. Louis Shortline Railroad)
BRC – Beltline Railroad of Chicago (Chicago Shortline Railroad)
EJ & E – Elgin, Joliet and Eastern (Chicago Area Shortline Railroad)
Gothenburg AEI Reader – An Automated Equipment Identification reader located east of North Platte that produces train volume counts through one of UP's busiest corridors.
HB & T or HBT – Houston Belt Terminal (Houston Shortline Railroad)
ICTF – Intermodal Container Transfer Facility at Long Beach, Calif.
LATC – Los Angeles Transportation Center
O'Fallons Scanner – An Automated Equipment Identification reader located just west of North Platte. These readers count trains arriving and departing North Platte, as well as coal trains moving to and from the Powder River Basin.
OMC – Omaha Metro Complex (trackage within area defined by the South Omaha-Fremont-Missouri Valley triangle)
PRB – Powder River Basin, in northeast Wyoming, a principal source of UP-hauled coal.
TRRA – Terminal Railroad Association (St. Louis Shortline Railroad)