The current infrastructure situation of Penn Station, MSG, Farley Post Office, West Side Yards, existing railroad tunnels, existing subway tunnels and any future tunnels in that vicinity are all very much tied together. The reason for the rush project to build a tunnel box to preserve a right-of-way under the West Side Yards for any future Amtrak Gateway project before any commercial development for proceeds for the Hudson Yards project. This is because the level of cost and difficulty increases exponentially for any future Amtrak projects if this is done AFTER all the footings, pilings and foundations for the Hudson Yards towers are put in.
Thus, we start getting to the point of "fixing" Penn Station.
MSG is the elephant that is perched upon and slowly breaking the back of the Penn Station tortoise.
As long as MSG sits atop Penn Station, it will be significantly harder and more costly to renovate any of the vital track level structural elements. As long as there are giant columns and beams to carry all of that extra weight, that architects and engineers then have to work around in their plans, the costs will be significantly higher. You cannot cheaply fix platform level passenger flow issues without eliminating the columns that carry the weight of MSG. As long as all of the station level infrastructure has to be squeezed between the underside of MSG and the top side of the track level, it will resemble a rabbit warren.
The Farley Post Office renovation into "Moynihan Station" does not resolve the fundamental structural and infrastructure issues that limit Penn's throughput. To fix Penn, we need more tracks, more platforms, more tunnels into and out of the station, better passenger flow on the platforms, better passenger flow to and from the platforms and better connections to mass transit and the surrounding neighborhood to get passengers into and out of the station. Most of the Moynihan Station plans just put a nice facade onto an escalator lobby down to the existing Penn Station tracks, with no major improvement in transit connections and certainly no improvements in track capacity at Penn.
To truly fix Penn, MSG needs to move elsewhere and Penn Station operations temporarily ENTIRELY moved to Farley Post Office, so that the existing warren of tunnels can be exorcised and replaced with a more modern and functional station infrastructure to accommodate the future needs of Amtrak, LIRR, NJT, MNRR and High Speed Rail. Anything less than that, will just be another band-aid on a massive chest wound.
---Electrical Engineer---
5th generation from Harmon (Croton-on-Hudson, NY), home of the MTA MNRR Harmon Shops.
B.S. Elec. Eng. Tech., Rochester Institute of Tech.
"I have problems sleeping at night when I can't hear the idling of several GE locomotives reverberating off the hills."