I certainly understand everyone's confusion and frustration with work measurement. I also know this leads to not having confidence in the work measurement. It would take more than a brief explanation on a message board for everyone to know and understand exactly how it works. For those of you who are truly interested, I recommend asking your Divisional IE, or District IE Guru to take the time and give a full explanation of how it's developed and applied on a daily basis. In the meantime, I'll do my best to give a brief explanation.
First of all, all Centers are divided into specific geographic areas called Loops. A trace completed in the Loop to determine the best way to deliver that Loop, starting at the baseline, going to the Apex (top), crossing the center line, and returning back to the baseline.
Within the Loop, and following the trace,stops are seperated into Defined Areas, usually consisting of between 50 and 100 stops.
Once the Defined Areas have been established, the Areas are time studied to determine the average time it should take an average driver to deliver and pickup the stops within. There could be 3 types of stops in a Defined Area, signature required, driver release, and pickup. An allowance is developed for each type of stop within the Defined Area.
The time study is analyzed by adding all the determined times for SELECT, WALKS, RING BELL/WAIT, CONTACT, and LOAD/PREPARE by Defined Area, and dividing the total time by the number of stops, by type, to get the average time per stop. This is the stop allowance for that Defined Area for signature required, driver release, and pickup stop. For example if the total allowed time for signature required stops was 120 minutes and there were 75 signature required stops studied, the average time per stop would be 1.6 minutes per stop or .02667. If the following day there were 80 signature required stops, the allowed time for those 80 stops would be 2.13 hours. The planned allowed time in this example is ONLY for the signature required stops. Driver Release and pickup stop allowances are developed the same way.
In addition to the planned time for stops, planned time for the number of packages (pickup and delivery), call tags, and COD.
The planned time for travel is seperated by travel to and from the area and on area travel.
The allowed time and miles for to/from travel is which ever area the driver delivers or picks up in that is closest to the Center. All remaining miles the driver goes would be on area miles.
The on area miles planned time is more complicated. This is calulated with the use of a chart. After all planned times, excluding travel, are determined, the chart is used to determine the on road planned time. The more non travel planned time the driver has, the higher the allowed time for the on area miles driven. Conversely, the less non travel panned time the less on road planned time.
All the planned times for the delivery and pickup portion of a driver's day is added to the planned time for Inside AM and PM to obtain the driver's total planned time for the day.
It is possible for a driver to have the same number of stops from one day to the next and the planned time would change.
This could be caused by although the total number of stops are the same, one day the driver release stops are much higher or lower, the CODs are higher or lower, or a numer of other differences. Remember, the allowed time for on area travel varies as the amount of non travel work varies.
I know there are some of you on this board who will never agree with work measurement, and in most cases I understand why. Too many management people have used work measurment as a club to beat and intimendate.instead of what it's designed for.
I really hope I have answered a few of your questions, but you should stll seek answers from the "experts" in your District.