Looks like you are suggesting Morris and Essex lines and merging it with NEC Trenton to NY Penn. When running double decker coaches you must know they have to be shorter than the Northeast Corridor services due to Erie Lackawanna RR designing them to be a commuter route. Remember you must also change voltage between the two 25kv 60hz Morris and Essex lines to 11kv 16.7-25hz NEC Trenton New Brunswick New York Penn Station. Travel time depends on some stations to New York Penn one and a half hours however Summit Exit 45 I-78 to NY Penn 1 hr.