Testing whether Night Owl rail services can 'fly'

Those who depend on mass transit believe that service should be available 24/7 so that they can get to where they need to go, whenever they need to get there. In New York, MTA customers can hop on the subway 24 hours a day. In Chicago, CTA riders can use the Blue and Red “L” lines around the clock. But in cities like Boston and Philadelphia, major service lines and routes are not always all that convenient in the early hours of the morning — until now.