This paper focuses on the possibilities of using dual locomotives in freight rail transport. It presents different types of power supplies for these vehicles, their categories and shows the possibilities of use regarding operational efficiency and emission savings. On a practical example, it demonstrates the suitability of deploying dual locomotives for a wide range of operation, including considerable savings in traction energy costs. It also provides examples of real deployment of these machines, particularly in the Czech Republic and the Central European region in general. Finally, an assessment of the benefits of dual engines is presented and a recommendation for appropriate operational deployment is made.

rail transport; dual locomotives; hybrid locomotivess; freight rail transport; efficiency; last-mile; freight trans