I’ve often wonder if cancelling trains (and busses) would make them on time more in practice too, by queuing theory. If you just let them run late, that starts to compounds until you get a Bernoulli distribution (exponential arrival delays) as the system becomes unstable. If canceling a train means the next one can run actually on time, then the system is forced back towards stability with predictable reliable times. Sure you had to miss one slot, but in the alternative scheme where everyone is late, you miss every slot — and average wait times are doubled in an exponential process compared to a periodic system that sometimes skips an entire train intentionally.