Abstract
This paper investigates the problem of determining the number of planning periods in a periodic loading sysem over which work of each job is uniformly loaded.Relationships between the number of job-loaded periods for jobs having a long processing time and variation coefficient of total load are analyzed on the assumption that job arrival intervals are the processing times are exponentially distributed.It is shown that the variation coefficients can be decreased to a certain limit by increassing the number of the job-loaded periods even on condition of the same average job-loaded time.
