Local transit historian and railfan Dj Hammers makes tons of great videos showing how subway transit works and runs in the City.
In this video, Dj Hammers gives us the first look at the newly installed bluetooth countdown clocks placed on a few of the lettered subway lines.
New countdown clocks have begun a 90 day test along the Broadway N/Q/R lines in Manhattan. Besides the L line, these are the first countdown clocks on the B division to display the route of the next train and the amount of minutes away the train is.
via Dj Hammers