Transit nerds, you are going to love this. The MTA has posted this time lapse video on YouTube, saying: "The Corona Subway Yard in Queens is home to the 7 subway fleet. Each weekday morning between 5 a.m. and 8 a.m., 27 trains leave Corona Yard to provide service to the Flushing Line's 450,000 customers. The 27 trains join five already in service to provide 32 trains during the peak hours."

[via 2nd Ave Sagas]