1. A method for improving haul route management, comprising: receiving performance criteria associated with a haul route; establishing a target total effective grade for at least one machine associated with the haul route based on the performance criteria; collecting performance data associated with the at least one machine; determining a drive axle torque of the at least one machine and estimating an actual total effective grade associated with the at least one machine based on the drive axle torque; and identifying the at least one machine as an underperforming machine if the actual total effective grade for the at least one machine exceeds the target total effective grade.