Counter-anecdote: for the past ~5 years, I've been taking Amtrak (usually Northeast Regional) between NYC and Boston every couple of months. Trains leaving Bost

Counter-anecdote: for the past ~5 years, I've been taking Amtrak (usually Northeast Regional) between NYC and Boston every couple of months. Trains leaving Boston South Station almost always leave exactly on time. On the other hand, the odds of an on-time departure from NY Penn Station have been maybe 20%. Of the 80% of trains that leave late, the vast majority do not make up the delay over the course of the trip, and therefore arrive late in Boston.