> From: Sean H. Breheny <shb7@CORNELL.EDU>
> >
> > "When do I push the emergency rocket button?"<G>)
>
> That question comes up with the existing systems. Maximum braking skids
the
> wheels,  quickly wearing flatspots on them. So, the engineer is thinking,
> "I'm going to hit that idiot parked on the crossing anyway? Why screw up
> several hundred railcars in the bargain?"

Aha! So the real task for the PIC is in the ABS!