With the L train tunnel repairs potentially coming in late 2018, the MTA has some major decisions to make. Whether the L train is shut down all at once, only on weekends, or half of the tunnel at a time, there are going to be many New Yorkers looking for new ways to get between North Brooklyn and Manhattan. Cartographer Andrew Lynch has written an extensive post about how the G train should be connected to the J/M/Z train via a mezzanine similar to the transfer between the G and the E/M trains at Court Square. From his blog Vanshnookenraggen:
There is a cheaper alternative and one which the MTA hasn’t seemed too keen on in the past which is to build a physical connection between the G train and the elevated J/M/Z. The Broadway station on the Crosstown Line was once planned to be a critical hub where the aforementioned unbuilt East River tunnels would meet and fan out into Brooklyn and Queens. It would have revolutionized travel for anyone living in Williamsburg and Bed Stuy where riders today only have the L train at Metropolitan-Lorimer
No changes to the NYC subway system are easy, but this plan seems like a relatively low cost way to help out a large number of commuters. Check out the full post at Vanshnookenraggen.