Answer:

stas

Answer	Crossword Clue
STAS	Termini: Abbr.
STAS	RR stops
STAS	Subway stops (abbr.)

STAS	RR schedule listings
STAS	Some stops: Abbr.
STAS	Coming and going spots: Abbr.
STAS	RR sched. listings
STAS	Train-stopping spots: Abbr.
STAS	R.R. terminals
STAS	R.R. stops
STAS	Boarding pts.

STAS	Grand Central and Penn (abbr.)
STAS	Pennsylvania and Grand Central (abbr.)
STAS	MTA stops
STAS	R.R. depots
STAS	Railroad stops (abbr.)
STAS	RR depots
STAS	AMTRAK stops
STAS	Amtrak stops: Abbr.

STAS	Depots: Abbr.
STAS	Places to buy train tkts.
STAS	FM selections
STAS	D.C. Metro stops
STAS	King's Cross and others: Abbr.
STAS	Dots on a subway map: Abbr.
STAS	Places to buy hot dogs or lemonade
STAS	Railroad stops: Abbr.

STAS	RR depots: Abbr.
STAS	Stations: Abbr.
STAS	Italian saints: Abbr.
STAS	Network affiliates: Abbr.
STAS	Terminals: Abbr.
STAS	Stopping places: Abbr.
STAS	Posts: Abbr.
STAS	Penn and others.

STAS	R. R. stops
STAS	Bus stops: Abbr.
STAS	Transit stops: Abbr.
STAS	Train stops: Abbr.
STAS	Short depots