Why might a conductor prefer a digital manifest over a paper one?

A conductor would prefer a digital manifest primarily because it allows for easier updates. With a digital system, any changes to the passenger list or schedules can be made in real-time, ensuring that the most current information is always at hand. This capability enhances efficiency and reduces the likelihood of errors compared to a static paper manifest, which would require manual revisions or even reprinting to reflect any changes.

Additionally, digital manifests can often integrate with other systems, providing a comprehensive overview of relevant data at the conductor's fingertips. This can facilitate smoother operations throughout the journey as opposed to relying on a paper record that becomes outdated quickly if changes occur. The other options present potential advantages of digital manifests, such as being lighter or more environmentally friendly, but the ability to make quick, accurate updates is the key reason a conductor would prefer it.