Concerning the occupant of operators for mobility services with automated driving (AD) level 4, previous studies have concentrated on the 'driving operation' tasks of bus drivers. Therefore, in this study, through interviews with bus companies, the work of current bus drivers was visualised and the view to the era of AD was considered. As a result, it was found that 'fare collection' has high expectations in terms of reducing the driver's workload. It also became clear that there is room for future consideration of the division of roles between remote and local attendants for tasks such as 'guidance' and 'accident response', in order to reduce the burden on drivers and prepare for the era of AD.