There is no such thing as "high speed freight" in the US. Even with PTC, the maximum speed for freight is 79mph. This is because freight cars are not designed for high speed use. See 49 CFR 213.307
Here's the FRA's statistics on US rail injuries and fatalities: https://injuryfacts.nsc.org/home-and-community/safety-topics/railroad-deaths-and-injuries/ And here are the ORR's annual rail safety reports: https://www.orr.gov.uk/monitoring-r...ing-health-safety/annual-health-safety-report
Which is no different from the UK (75 mph) or Germany (120 km/h, but usually 100 km/h). I'm not sure that "high speed freight" in the sense of TGV or Shinkasen speeds exists anywhere.
It existed with a classic loco hauled train with 9 wagons modified running at 200kph and a postal TGV running at 270kph, both doesn’t exists anymore.
I mean if we are counting mail trains as "high speed freight". Then Amtrak's NEC Fast Mail train would fit the bill.....
The original OP stated that he drive his freight train up to 75 mph on WCML. If I'm not mistaken, all freight train in UK are limited to 60 mph right? So if you run at 75 mph I'm pretty sure you'll get a "tea and biscuits" session at the end of your shift. XD
Actually, no. Trains with 4 headcodes can run up to 75; those with 6 headcodes are limited to 60. (There are even slower classifications, but I don't think there are any partially-fitted or unfitted trains any more)
Mail trains have always been a subset of passenger, not freight, service; traditionally in the US at least the mail was carried as part of passenger consists. (The Post Office ending its railroad mail contracts in 1967 was the final death blow for private passenger rail; mail was the only profitable thing they had left).
