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This is a normal post Not entirely, maybe relaxing the timetable during problem periods would help.
The passenger trains are timed to run close to flat out between stations with little margin for running at anything outside that. So when low adhesion is encountered, it's like if a road was slippy you slow down a bit and brake lighter and earlier. It loses a few minutes between stations but this soon adds up. Doesn't help that passenger stuff is lighter and uses disc brakes rather than clasp brakes so they slip more easily.
(, Tue 9 Dec 2014, 21:34, Reply)