With computers being what they are today and up to the minute data on what freight is going to be due on any given day they should know a day or two ahead of time what their workload should be. Shouldn't it be as easy as:
500 bills due on 11/11/13 (they get these print outs daily)
100 man hours on the dock
60 P&D guys to deliver the freight
Same guys pick up 500 bills?
That is
ASSUMING everything goes smoothly, as it rarely does.
EOL's are at the mercy of the BB's and that is based on O/B freight that needs to be serviced (sometimes).
O/B direct rail freight is left to sit regularly. I/B rail freight is regularly not dispatched until last minute, just to
barely meet T/C times. This leaves drivers waiting for freight and late peddle starts that already have longer stem times. It seems simple, but the cogs are worn and the machine needs a major tune up.
Back to topic, absenteeism is the result of overworked employees that are exhausted, disgusted and/or out of hours.
Some guys are okay with 55-60 hrs weekly. Some guys do 50 hrs work in 40 so as to get out the gate to have a life. Some guys get nothing done, regardless of how long they are punched in, but that group is a significant minority. There can only be one or two people in the whole system that have 2 weeks or less vacation....
In a 30 person barn with 1/2 the board w/3 weeks and the rest w/4 weeks, that's 2 workers vacationing every full week. Add in sick days, p/h's, b-days and anniversaries, the 10% board is exhausted before anything else is covered.
Change the thread name to "understaffing/ we need more help!!!"
Now, reality for your numbers.
We get 350-400 bills on a Monday. We have 32 working, no casuals. (two on hard layoff plus two out on comp.) (That makes 28 total) We deliver 300 plus and pick up 100 - 120. The rest of the week tapers down to 180 - 200 I/B on Friday and 150 or more O/B.
We cover 1600 square miles.
We have an I/B crew of 5 and an O/B crew of 3. Your numbers are from a fantasy world.