Recall the release modes from memory. Size a buffer from two numbers. Then turn Riverside's pre-sorter buffer into a real zone plan.
For each mode, write what it does and the kind of downstream process you'd reach for it. Then note the two things that set a buffer's size.
Turn two numbers into a zone count. A zone in singulated mode holds one package, so the count is buffer time multiplied by the arrival rate, plus margin for the wave you haven't watched.
A pack station downstream can go unavailable for up to forty-five seconds during a wave. Cartons arrive at twenty-four a minute. Your longest case is twenty-two inches, and you'll ride it on a six-inch gap.
Work the zone count from the buffer time and the arrival rate, then the zone length from the longest case plus its gap, then multiply for the run length. Add a line of margin. Show your work.