Timetable service 329 San Jose Diridon - San Fransisco, at 08:03:00. After leaving the station the first objective is a Go Via objective. The speed limit is 79mph and the signal is clear, so it's safe to assume the player is travelling at 79mph. After the Go Via objective, you're given the objective to stop at Sunnyvale, which is only 500 yards left to go. At 79mph there is not enough distance to come to a stop. Overrunning the platform is the logical outcome.