lensovet wrote: ↑Tue Sep 05, 2023 9:25 am
How is that going to be possible when the trains are going to need to run with existing rolling stock in the cities at the ends of the line?
Using the FRA's Alternate Compliance Regulations. Which would require new commuter trains sets along with HSR trainsets over share tracks. If using dedicated tracks in the same corridor, easting rules will allow going to the same station, just using different platforms, with the same trains.
Let's review a few examples:
Caltrain using alternate compliance commuter train sets and CHSR using the same tracks and maybe the same platforms.
Amtrak on the NEC sharing FRA regular compliance rules with Acela (and Acela 2) trainsets sharing the same tracks and platforms at many stations. In the first case Acela met the FRA regular crash rules, in the second case they will use the new alternate compliance rules.
Texas Central will not be sharing tracks or platforms with existing trains.
And like all other higher than 125 mph max speed trains, running with their bespoke rules. Even Acela had bespoke rules to operate under.
In LA, if Metrolink does not replace their existing rolling stock, CHSR could enter the station on dedicated tracks and with dedicated platforms. Through running trains do not need to have access to every platform. Even at New York Penn, LIRR, NJT, and Amtrak do not share every platform, although they do share tracks entering the station.
However they decide to do it, there may be a way to do it, never-the-less, there will be a way to do it.