The expression "like Grand Central Station" might be applied to a kitchen, where people frequently go in and out. "Hotel corridors are like Grand Central Station in the rush hour" was printed in the New York (NY) Times on March 2, 1934.
Wikipedia: Grand Central Terminal
Grand Central Terminal (GCT; also referred to as Grand Central Station or simply as Grand Central) is a commuter rail terminal located at 42nd Street and Park Avenue in Midtown Manhattan, New York City. Grand Central is the southern terminus of the Metro-North Railroad's Harlem, Hudson and New Haven Lines, serving the northern parts of the New York metropolitan area. It also contains a connection to the New York City Subway at Grand Central–42nd Street. The terminal is the third-busiest train station in North America, after New York Penn Station and Toronto Union Station.
2 March 1934, New York (NY) Times, pg. 18:
Hotel corridors are like Grand Central Station in the rush hour.
An Evening of One-act Stagers for Golden Agers
By Albert M. Brown
New York, NY: Samuel French
WILLIAM. This house has been like Grand Central Station since word got around. I never heard of so many cousins, so many investment companies, so many advisers —
Grand Central, the World's Greatest Railway Terminal
By William D. Middleton
San Marino, CA: Golden West Books
The expression "like Grand Central Station" came to be synonymous with a crowded, busy public place.
Prentice Hall Literature:
Timeless Voices, Timeless Themes
Upper Saddle River, NJ: Prentice Hall
What might the expression "it's like Grand Central Station" mean? Students should realize that the busy train station is sometimes referred to when people are in busy situations or places.
Must Sees: New York City
By Jonathan P. Gilbert
Greenville, SC: Michelin
There's a reason that Grand Central Terminal is held up as the epitome of hustle and bustle (i.e. "It's like Grand Central station around here!"). This magical public space is criss-crossed by 150,000 commuters each workday.
Grand Central Station
a crowded or busy place (from the Grand Central Train terminal in New York)
The house was like Grand Central Station today.
#all hell broke lose#grand-central-station#grandcentralstation#grand central#mob scene
by The Return of Light Joker July 21, 2009
Just had a moment where I was weaving my way through a crowd and thought “it’s like Grand Central in here!” and I was actually in Grand Central.
9:19 AM - 8 May 2019