Air tram 14 was a Federation air tram that was in service with Starfleet in the late 23rd century, attached to Starfleet Command on Earth.
In 2273, air tram 14 was parked and was awaiting for passengers in the Starfleet Headquarters air tram station in San Francisco. (Star Trek: The Motion Picture)
This air tram was the closest to air tram 3 after it had landed. In the re-mastered version of the movie, air tram 14 was changed in appearance, and the hull number was no longer visible. [original appearance]; [new appearance]