[4][5] Located within the secure areas of the airport, the AGTS operates bi-directionally in a pinched-loop configuration utilizing twin 1.25 miles (2.01 km) tunnels traveling underneath the aircraft taxiways and passing through the center on the concourse buildings.

Usually, trains will reverse direction at the Jeppesen Terminal after unloading and loading passengers and switch to the northbound track at a crossover north of the station as it proceeds to the concourses.

The pre-recorded announcements are delivered by a well-known voice talent from the Denver area and are preceded by a variety of short musical sound effects and jingles.

Train Call was recorded by sound artist Jim Green, who intended for the audio to be playful, friendly, and memorable.

Train Call currently features the voices of former Denver Broncos and Colorado Rockies announcer Alan Roach, and local KUSA-TV anchor Kim Christiansen.

[12] In addition to Roach and Christiansen, passengers are welcomed to Denver by a personal greeting from the voice of Mayor Mike Johnston prior to arriving at the terminal and baggage claim station.

[13][14] The sound effects accompanying the original voices mostly came from bells and wind instruments and were based on western folk songs, such as "She'll Be Coming 'Round the Mountain", "Turkey in the Straw", and "Home on the Range".

The airport commissioned Jim Green again to record a new edition of Train Call, which featured the voices of Alan Roach and former KUSA-TV anchor Adele Arakawa.

[17] In recent years, the airport authority purchased the rights to Train Call from Jim Green, allowing them to modify the audio without his input.

[18] The east tunnel (used for northbound trains during normal operation) features a visual art installation known as the "Kinetic Light Air Curtain".

Also, the total number of blades of all of the propellers combined represents the height of Colorado's tallest fourteener, Mount Elbert, which is 14,440 ft (4.40 km) tall.

Contrary to common belief, the propellers do not generate any electricity for the trains or any part of the airport, and are strictly decorative.

Designed by Leni Schwendinger, this art display primarily consists of over 5,000 feet (1,500 m) of colored reflective metal strips arranged into a variety of images.

[21] However, in rare instances of the train system failing unexpectedly, the airport's contingency plan is to deploy a fleet of shuttle buses to transport passengers between the concourses.

[24] Following the incident in 2021, a request for information from the private sector was issued by the airport to analyze options that could supplement the train system in the future.