Eficiência no transporte ferroviário de cargas: análise de projetos de melhoria contínua

Abstract

The installation of a continuous improvement project office in the production and administrative processes is a strategy adopted by companies in the search for efficiency. This application has been growing as a result of the increased competitiveness in the markets. In this scenario, the incessant search for efficiency makes studies that can unveil paths and point out solutions relevant. This is also true in the national railway cargo transportation sector. In order to identify the types of continuous improvement projects that contribute to the efficiency of railroad cargo transportation, the DEA/VRS methodology was applied to define the efficient production units and thus characterize them. Through a case study, supported by bibliometric analysis, the parameters used in the modeling were defined. The results indicated efficiency improvement over time and presented robustness of the parameters used. With the segmentation of the operational projects for continuous improvement, it was possible to identify the most relevant types of projects for the efficiency of railroad cargo transportation, characterized as the increase in the quantity of wagons per train (alteration of the train type), increase in the average cargo weight, improvement in the shunting performance, reduction in the transportation time, increase in the loading and unloading performance, reduction in the driver change time, improvement in the average speed and increase in the admissible speed.