In March, the MBTA announced a yearlong pilot program would keep trains and some buses running until 3 a.m. on weekends. The agency had experimented with late-night BUS service back in 2001, but it was discontinued four years later due to low ridership. Now, halfway into the new pilot program, reporter Edgar B. Herwick III, of WGBH News' Curiosity Desk, wondered whether the late-night service was still running smoothly.
