This study estimates the operating costs for commercial vehicle operators in Minnesota. A
survey of firms that undertake commercial truck road movements was performed. The average
operating cost per kilometer for commercial vehicle operators was calculated from the survey
responses. Results show that the translog and Cobb-Douglas models have approximately equal
explanatory power in estimating the total cost from the data. The models also revealed the
presence of nearly constant returns to scale, a finding consistent with earlier studies; an increase
in output (total truckloads) of 1% increases total costs by 1.04%.