Indeed. Our truck drivers write down everything they do in their log. How many miles, how much weight, how many minutes.. all of it.

At the end of every day I have to aggregate all of it into a daily summary, which then gets aggregated into a monthly summary. That data is then used in conjunction with our fuel usage data in order to get a refund for a percentage of the money spent on fuel. Fuel prices contain a lot of taxes, many of which are only applicable for on road usage. Since our trucks spend a lot of time running while not on the road (warming up, unloading, loading.. etc) we're able to get some of that money back.

You also occasionally get a driver that comes in complaining that he's being given far more work than everyone else, and we can use that data to quickly see how much each person is accomplishing and in how much time, and determine if there is any truth to the matter.