It is one of the busiest subway stations in Brooklyn.

As the gateway to a half-dozen subway lines, the sprawling Broadway Junction transit hub commands a prime location at the crossroads of six neighborhoods and serves as the unofficial welcome center in a fast-growing part of New York City.

The problem? It is anything but welcoming.

The dingy warren of passageways and platforms linking the A, C, J, Z, M and L are so packed that rush hour turns into a crawl. Outside, bus stops and a Long Island Rail Road station are plopped down in a depressing terrain of trash-strewn streets, chain-link fences rimmed with barbed wire and panhandlers camped out on sidewalks.

“You could do way better than this,” said Roody Fevry, 32, an exterminator who lives nearby. “It’s like nobody cares.”