Anecdotally one of my Engineering lecturers at university was an expert on human logistics. (i.e the physical queuing of people) I remember talking to her about

Anecdotally one of my Engineering lecturers at university was an expert on human logistics. (i.e the physical queuing of people) I remember talking to her about a project she was working on with a large retail chain advising them on how to funnel people through store checkouts more efficiently.