What about Train Length and Energy Efficiency of Freight Trains in Rescheduling Models?

Energy efficiency and train length may be critical during rescheduling, in particular if long freight trains are considered. The first aim of this paper is to investigate how current scheduling and rescheduling models consider train length and energy efficiency. The second aim is to extend a scheduling model that considers train length and energy efficiency for drafting a rescheduling model that minimizes not only delays but also energy consumption. A small numerical example shows that this rescheduling procedure can be fast and yield to a significant reduction of energy consumption. Thus, it is worth further research. However, validation on larger instances, calibration of parameters with real operational data, and methods to speed up the procedure are still needed.