The phrase "a crowded intersection" is correct and usable in written English.
It can be used to describe a location where many roads meet and there are a lot of people or vehicles present.
Example: "The city was bustling with activity, especially at the crowded intersection where pedestrians hurried to cross the street."
Alternatives: "a busy junction" or "a packed crossroads".
A crowded intersection — rife with pedestrians, cars, and billboards — bats our attention around.
WASHINGTON — An American C.I.A. contractor is accused of killing two men at a crowded intersection in Pakistan.
By the American account, Mr. Davis was driving alone in an impoverished area rarely visited by foreigners, and stopped his car at a crowded intersection.
In Srinagar, the summer capital of Jammu and Kashmir, a bomb exploded at a crowded intersection this afternoon with a deafening roar, killing 2 people and wounding 15.
A cellphone video uploaded to YouTube appears to show the fatal police shooting of a man who threw rocks at officers before running across a crowded intersection.
In the middle of a crowded intersection, she hit the brakes and made a sudden illegal U-turn, executed so brazenly that it left the other drivers too stunned or too impressed to honk.
Last week, I went to the preliminary hearing for Chris Bucchere, a software developer charged with felony vehicular manslaughter; on a workday morning in March 2012, Bucchere struck and killed a 71-year-old pedestrian, Sutchi Hui, in a busy, crowded intersection.
The Real Estate Record and Guide considered the site "monstrously inappropriate," in part because of "the terrific dead-lock" of traffic that the mail wagons would create at an already crowded intersection.
Emergency vehicles could use the technology to control traffic lights as they approach crowded intersections.
Some darted in and out of lines of slower traffic, sped along highway shoulders and threaded crowded intersections.
With an assigned time and path, these lightweight, self-guided cars would proceed steadily through crowded intersections without all the stop-and-go that chokes roadways and saps fuel efficiency.
