Otimização da mensuração da expedição rodoviária: uma abordagem Lean

Abstract

This study proposes a new model for measuring the efficiency of road loading, as the previously adopted method brought a distortion, since it disregarded the efficiency of the delivery process in terms of reducing the freight cost per cubic meter moved. The possible solution to the problem would be the reformulation of the currently adopted measurement methodology, and for this purpose, the DMAIC methodology was adopted, and from a machine learning model, it was identified that the main attribute influencing loading time was the truck’s capacity, as it showed a positive correction close to 1. Thus, a prediction model was constructed with estimated time for each truck capacity. After validating the model, a new measurement system was established that eliminated the initial distortion between the measurement of loading effectiveness and the reduction of the average freight cost since it did not penalize trucks with greater capacity and considered process control.