2) Problem Solving: As mentioned earlier, the
number of machines assigned to one operator is not
optimum. Thus, the optimum number of machine must be
calculated. The solution can be obtained from (1). In this
equation, the nominator is a total time that a machine
needs to complete in a cycle. Note that this is a
combination of the machine cycle and the operator service
time i.e. unloading and loading time at the end of the
cycle. The denominator is a total time that an operator
must perform on the machine in addition to walking time
or repositioning time among the machine cluster.