@sidereal Except the passenger carriages would still be coupled to the loco, and couplings are designed not to break easily because they have to be able to handle the combination of the tractive effort of the loco plus whatever forces are acting in the opposite direction. Splitting points doesn’t result in a nice neat detachment or a catch point style derailment, it makes a heck of a mess.
My preferred train nerd answer to the stupid trolley problem is “neither, as rail vehicles like this are equipped with multiple emergency braking systems and safety devices thanks to 180 years of strict government regulation and accident research”.
@m @sidereal the railways reaching the Old West initially had less capable couplings and brakes, though, right?