by Lauren Rothman
Since the new year, North Brooklynites have fretted over the imperiled existence of their lifeline: the L train that connects them to Manhattan. Even under the best of circumstances, the L can be highly undependable, so things only got worse in January, when the MTA announced that the line, whose tunnels were severely damaged by Superstorm Sandy in 2012, would need to be at least partially shut down for repairs throughout 2019.