Why not just add some time to the schedule to compensate for the loading?
Each express train schedule is precisely timed to make a turn and become another train heading in the opposite direction. All of these trains must work in unison. If trains do not make it on time, we miss our schedule and the express run is late – which defeats the underlying purpose of express service. The turning of trains requires enough time to check equipment and to allow crews to prepare for the next trip.
