Virgin tilting train on west coast

[DP]

If this train was to do an emergency stop, is the deceleration gradual?
Reason for asking is, I was on London to Glasgow train yesterday. Train was involved in an accident. The train stopped as if stopping to a line signal, train guard to then make an announcement about the accident.

 

[Brigadier]

I can't imagine a train coming to anything other than a gradual stop, but it's all relative i suppose.

 

[big-all]

you will probably have something like "on" 1/2/3/4/full service positions that will normally be used with the brakes this will be mostly regenerative until lower speed
you get a bit more retardation in emergency position but simply dont know how much
on older trains because the brakes where air or vacuum operated by air admitted via the the drivers brake control only 'the application would be smoothed out via tanks to stop surges
but with an emergency the smoothing out was bypassed often causing bunching and snatching all safe but uncomfortable
on modern trains its an electronic signal to individual vehicles so all brakes will operate smoothly
normally with emergency braking you can smell the disc brakes more than usual

 

[Brigadier]

I've got a mate who works for Alston (who make the trains), who might know the stopping distances.
Most seemingly trustworthy figure I saw was 350m from 60mph.