I read elsewhere (perhaps NYT or WSJ, but i can't find it from days ago) that rail is most safe, statistically. If so, it remotivates an analogue of TCP's MTU:

I read elsewhere (perhaps NYT or WSJ, but i can't find it from days ago) that rail is most safe, statistically. If so, it remotivates an analogue of TCP's MTU: if the size of shipments were small, but the number of shipments high, would a single "packet loss"/derailment be less catastrophic?