A Thought On The Future of Amtrak

east point wrote:isn't the Chunnel privately owned ?

Yes. So what? (I own some shares in it, though I have never seen any dividend, but I have had some free trips across.)

There are no "private" networks, as in the US.

mtuandrew wrote:I’m hopeful that once PTC has proven itself as a safety enhancement tool, private industry and government will join forces to use it as a capacity-enhancement tool. I-ETMS and similar interoperable systems could allow 80+ mph passenger operations mixed with 50 mph intermodal and 30 mph local freight, unlike ABS, CTC, or forms of track warrant like Form D.

The speed differences among the differing types of trains tend to have the whole network working more to the speed of the slowest - not the fastest - no matter what form of traffic control is used.