The Nashville Terminal Subdivision is a railroad line owned by CSX Transportation in the U.S. state of Tennessee.

The northern part of the Terminal is in Madison, Tennessee, at milepost 000/0BA 174 on the southern end of the Ex-L&N Main Line Subdivision at Monfort.

From here in Madison begins the double track that stays for another 22 miles south to Brentwood, Tennessee.

At milepost 000/0BA/00H 176.6, the famous Johnny Cash "Amqui" location where the Ex-L&N Evansville, Indiana line, the Henderson Subdivision meets with the Terminal.

From here the regular Terminal goes south to swap crews at Kayne Ave, and the right side, Radnor Cutoff, detours the city and gives yard departures and arrivals direct access to and from Radnor yard to cities like Louisville and Chicago.

The Radnor Cutoff carries the L&N mainline classification of "0BA" but meets the main at the same milepost from the Terminal.

At Chicken Pike, trains are staged to await arrival to Radnor yard.

Once they get clearance, speed is decreased to 15, and at 0BA188.1 the EDD (Defect Detector) sounds for departures and arrivals.

The interesting piece of Maplewood is the crossovers that are there to move trains from the Cutoff to the Main.

This is the Wye track that connects the main with the Bruceton side, while rarely used for mainline trains, locals and river jobs use it.

The main then runs down to Kayne Ave, the central hotbed of all Nashville through traffic.

The line is still double track until "Sellars", where speed is increased to 40 and jurisdiction transferred to the SD Dispatcher.

The Kayne Ave yard is also here in this area, which houses some freight and some switcher engines.

Crew change usually occurs at the "walkway" which is under the Demombreun St bridge by the Kayne Ave Tower.

At Oak Street, our main terminal line goes south two miles to 000189.0 known as Criaghead or Vine Hill.

Sometimes trains wait on the #1 at the Berry Road crossing if they await arrival to Kayne Ave. At this point, speed has been decreased to 30 from 10.

The Nashville Terminal Subdivision is one of the busiest locations on the CSX network, and one of the most important.