meaning of the phrase "on the way down"

[KLPNO]

Hi everyone.
I'd like to ask about the meaning of the phrase "on the way down" in the following context. It's a description of a trip: a woman travels from Penn Station to Atlanta.

On the way down, Annabella had glanced at the scenery. The train went through some rural areas, including a great deal of heavily guarded farmland.

[Mister Micawber]

.
It means nothing more than 'on the way to Atlanta'. Atlanta is south of New York.
.
_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mr. Micawber

[KLPNO]

Thank you very much, Mister Micawber!!!