Okay this is so cool, a simple time table game, immediately clear what the idea is. Good thematical use of the single player no gm as well, I like it.
As a physical prop, having the longshoremen, both pull list and the locations as "cards" during gameplay would be helpful – and having visual indicators for fragile, cold storage and unstable cargo – there's existing symbols for these, with useful visual shorthand.
It could also make it easier accidentally to treat the longshoremen as game pieces, having them as... game pieces. But all this would make it easier to track how the day progresses, add a feeling of reality and a sense of space, to a degree.
But currently I feel the information I would need to refer to multiple times does not stand out as much as I would like. Maybe they don't have to be cards, but some way of presenting the information in a way that's easy to spot and reference to.