There are way more than five people per train at any time of the day or night. Besides all the people with night and early-morning jobs, there's also the fact t

There are way more than five people per train at any time of the day or night. Besides all the people with night and early-morning jobs, there's also the fact that bars are open until 4 AM. They call New York "The City That Never Sleeps" for a reason.