It contained rows of flip panels that displayed train information, and became a New York institution, as its many displays would flap simultaneously to reflect changes in train schedules, an indicator of just how busy Grand Central was.
It contained rows of flip panels. Displays would flap simultaneously to reflect changes in train schedules. This is as its many. This was what these rows of flip panels displayed train information. These rows of flip panels became a New York institution. Its many displays would flap simultaneously to reflect changes in train schedules. Train schedules were an indicator of just how busy Grand Central was.