[ArrogantBustard]

MetroRail carries in excess of 700,000 passengers on a typical weekday. (See website at www.wmata.com)

How does that compare to NY Subway?

[xsrdx]

NYC has fully 50% of US total mass transit, I've heard.

I can imagine 2-3M a day for the subways alone in a city of 12M or so, with few cars.