Results of the estimated numbers of fuel consumption of each fuel type from equations in Table 2 were compared with the actual observed numbers.
Mean bias error (MBE) and root mean squared error (RMSE) of predicted amount of fuel consumptions for each fuel type in each transport mode were compared with the actual observation data.
The goodness of fits between the predicted amount of fuel consumptions and the actual ones can be indicated by determining the coefficient of determination (R2). The formulas