Why are filled bags placed at the head end of the station?

Filled bags are placed at the head end of the station primarily because the work train stops at this end to pick them up. This logistical decision simplifies the process of loading and ensures that the bags are efficiently transferred from the station to their next destination. When the bags are positioned where the work train is regularly scheduled to stop, it minimizes handling and reduces the likelihood of delays that could occur if bags needed to be moved from another location within the station.

In contrast, while other choices might offer potential benefits, such as ease of management for porters or security, the primary consideration is the operational efficiency related to the scheduled stops of the train. The focus on ensuring that the filled bags are readily accessible for the work train reinforces the operational procedures in place at the station.