The Morristown Line is an NJ Transit commuter rail line connecting Morris and Essex counties to New York City, via New York Penn Station or Hoboken Terminal. It is one of the two routes that make up the Morris & Essex Lines, alongside the Gladstone Branch. Out of 52 inbound and 53 outbound daily weekday trains, 34 inbound and 37 outbound Midtown Direct trains (about 67%) use the Kearny Connection (opened June 10, 1996) to Penn Station, and the rest go to Hoboken. Passengers can transfer at Newark Broad Street or Summit to reach another destination. On rail system maps, the line is colored dark green, and its symbol is a drum, a reference to Morristown's history during the American Revolution.
There is hourly service to/from New York (none going beyond Dover) on weekends. Until August 13, 2006, there was also hourly service to Hoboken. On that date, service between Hoboken and Summit was cut back to once every two hours on weekends. On May 11, 2008, off-peak weekday Hoboken-Dover trains (600 Series) were cut. In addition, weekend Gladstone trains were cut back to Summit, and a shuttle train is operated every two hours between Newark Broad Street and Hoboken Terminal.