Workload distribution is one factor that
influences operator or labor’s performance. In some
workplaces, in this case is Pertamina gas station SPBU
74.94205 Diponegoro, Palu, there is a circumstance
where the distribution of operators’ workload is not
equal. It is indicated when there are some operators
tend to work more than the other operators. This
research is focused on identifying the current workload
distribution and revising the work shift (7-hour
Morning Shift, 8-hour Day Shift, 9-hour Night Shift),
which is one factor that impact workload distribution.
Two alternatives of work shift model, based on
Miller’s suggestion, are proposed to the company. The
expected workload distributions of the proposed models
are compared to the current work shift’s workload
distribution. The result of analysis shows that the
current work shift has unequal workload distribution,
indicated by its standard deviation, which is higher
than the standard deviation of two alternatives of work
shift model that have been adjusted. The adjusted work
shift model with the lowest standard deviation
indicates that the expected workload assigned is more
equally allocated. This work shift model is then
proposed as the company’s new work shift (4-hour
Morning Shift, 5-hour Day Shift, 4-hour Afternoon
Shift, 5-hour Evening Shift, 6-hour Night Shift). While
the current work shift only allocates operators to each
shift, the proposed work shift now allocates operators
to each station in each shift.
Keywords: equality, gas station, work shift, workload
distribution