Comment by samatman

There's an old anecdote about this, almost certainly false, but worth sharing, goes something like this:

The Swiss trains arrive on time, more often than any other country. Second place is the Germans. What's the difference?

The Germans set the timetable, and carefully measure arrivals. Then the famed German engineering kicks in, and they move Heaven and Earth to identify and fix any problems which are keeping the trains off schedule.

The Swiss set the timetable, and carefully measure arrivals. They use these measurements to identify when trains aren't arriving on schedule and... adjust the timetable.