The MTA plans to expand Metro-North service, which currently terminates at Grand Central Station on the east side, to include some trains that terminate at Penn Station on the west side of Manhattan. While this service expansion is said to be relatively inexpensive, since the necessary rail lines to accommodate the new routes already exist, it is only feasible if the authority can complete its East Side Access project. The East Side Access project will connect the Long Island Railroad (LIRR) to Grand Central Station, freeing up rail and platform space to allow for the Metro-North expansion. Many Metro-North customers say the expanded service would be very convenient, while others worry that it would result in reduced service to Grand Central.