I haven't once suggested building 'next' to I-95.The Westchester part of the line will be tunneled from the Mount Vernon Metro North Interchange to I-684 which is about 15 miles so its not going to even touch any of the real estate. From The Interchange to Grand Central and Penn Station the line would share a 4 track Harlem line. I Don't understand why people are still clinging to the NEC , we need a NEW NEC , the current will be over capacity by 2030 and building next to I-95 in CT and RI and MA is out of the question due to costs and NIMBYs. Thats why there going along 684-84-90 and hugging the MNRR in NY to save costs and spend things up. The Existing the NEC will be upgraded to support speeds of 140mph in CT and 3 and 4 tracked along parts of the Shore line and in RI / MA. Don't worry , Providence and New Haven will still be connected.... As for the costs , alot of the cost is to upgrade the Existing NEC and build capacity for the New NEC between New Brunswick,NJ and Westchester about 45 Billion in upgrades are needed.... The MNRR tunnels need to be replaced and bridges above the Harlem line Raised to allow Catenary to be installed... Theres also the feeder lines like the Empire Service , Lackawanna line , Lehigh line , Northwest Service , Downstate corridor , Downeaster , Concord line , Cape Cod Service , Knowledge Corridor , Cross England line , and Virginia Network will be upgraded and feed into the NEC which is spine in this region. Of course the most Expensive new line would only cost 2 Billion....although with upgrades to bring lines up to 125mph and electrification the feeder system would cost 15 Billion. Upgrades to the Existing NEC will cost between 45-50 Billion....at what Amtrak said 2 years ago. The whining about the route on this board reminds me of the moaning about the New stations in Philly and Baltimore , what people don't realize is we can't continue to use the same Infrastructure for Higher speeds ,its to congested as it is...
I've suggested building inside of I-95, median running, the exact same thing you're proposing for I-84, only with the I-95 plan there's no need for a 15-mile-long tunnel, and there's less miles of track because the distances involved are less.
Once again, it is NOT 'build on I-84 or keep the current NEC.' That's a false argument.
What YOU don't seem to realize is that we're not 'whining' - we're trying to explain to you why your proposal comes off as pie-in-the-sky and impossible to bring to fruition. That Market East station requires a 10-mile long deep bore tunnel just to be reached, with zero chance of bringing those HSR trains anywhere close to the surface once they get there. The sticker shock on Market East alone is going to kill the rest of the project better than any NIMBY coalition ever could - it's literally Big Dig II: Dig Philadelphia! That's why I said we would have been better off with Amtrak letting the proposal they put out die quietly.