Rush hour frenzy: In the morning, people rush to work, in the evening they hurry home. If water must be crossed, ferries are often used as floating bridges. Where time is of the essence, double-ended ferries are at an advantage. They have neither bow nor stern. Instead, the vessel ends are symmetrical. Only the captain must turn through 180 degrees in his control stand if he is to return from B to A after just having come from A to B. A system with a clear advantage.
The ferries do not have to turn in port; cars can leave the deck in the same direction as they drove on. An obvious way to save time on the entire maneuver.