Proof of delivery is the invoice. A signature captured on the phone, attached to the load, turns a payment dispute six weeks later into a two-minute answer.
Driver hours are both a legal limit and the real constraint on planning. Visible before the load is assigned, they stop the route that could never have been completed legally.
Cost per kilometre is the only honest measure, and it needs fuel, tolls, empty running and waiting time on the same trip. Without all four, a profitable-looking route can be losing money for months.