The Port Authority Trans Hudson or PATH connects Newark and Jersey City to NYC. But there should be extensions made. One should be to extend the PATH to Grand Central from it's current Terminus at 34 Street- Herald Square. It would go up to 39 Street and go from north to east. then at Park Avenue, it will turn left to get to Grand Central. Also Hoboken bound trains will be extended to Cliffside Pak with new stations at Stevens Institute of Technology, Washington Park, 22 Street, Union City, West New York, Guttenburg, 79 Street, Fairviev, then Cliffside Park. Also the line from 34 Street to Journal Square will be extended to Newark Airport and obviously Grand Central.