The job of package delivery is easier today than it was 25 years ago.
Today you actually know what stops are in your package car when you get into it in the morning. Today (most of us at least) have package cars that are bigger and have basic ergonomic features such as powert steering and low steps that yesterdays vehicles lacked. Today there is a basic level of accountability and transparency regarding the workload that was totally lacking in the years when packages werent tracked.
25 years ago this month, I was dispatched in a P-500 with over 500 stops in it. Half were brickloaded in the car, half under the belt. The entire focus was on getting the packages out of the building, so I had to go out on route, find a garage to empty the car into, and come back to reload. At 11:30 that night I brought something like 150 missed stops back, and there were still more sitting in the garage that didnt get delivered for days. None were recorded as missed. There was no tracking, there was no planning, there were no cellphones or text messages or timely communication of any kind. My route was known as the "abortion car" and my only purpose as a driver in the grand scheme of things was to "get the belt clean" and allow my management team to maintain the illusion that their "plan" was working. You dont see that sort of thing anymore in todays UPS, simply by virtue of the fact that missed packages can no longer be hidden in such a manner. If you took a driver of today, transported him 25 yrs back in time and gave him a brickloaded P-5 or P-6 car along with a map and and a clipboard full of paper 50-liner delivery records...he/she would FAIL big time.