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Towards the electrification of freight transport: A network design model for assessing the adoption of eHighways

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  • Colovic, Aleksandra
  • Marinelli, Mario
  • Ottomanelli, Michele

Abstract

The development of new technological innovations for eco-friendly vehicles combined with the usage of renewable energy sources is essential for mitigating the environmental impact of freight transport. In this context, this paper investigates the opportunities for implementing the eHighway system, a novel recent technology designed to supply new hybrid trucks. This technology uses overhead catenary heavy-duty vehicles that are supplied with electric energy from overhead power lines through a pantograph that is positioned at the top of the truck. A novel bi-level multi-objective network electrification design (BM-NED) model is proposed to assess the environmental benefits and opportunities of adopting eHighways, considering the limited budgetary resources for road infrastructure electrification. Still, the implementation of eHighways requires collaboration between public and private stakeholder interests. The upper level considers multiple objectives aiming at minimizing the total travel cost, infrastructure, and environmental costs and maximizing the average traffic density of OC hybrid trucks on electrified arcs, whereas the lower level is the traffic assignment model. The Elitist multi-objective Genetic Algorithms are used as a solution approach for the multi-objective optimization and the Pareto front of the non-dominated solutions have been generated. Results of the model, tested on a part of a motorway network in the Veneto region in Italy, show that the implementation of the eHighway system can lead to an average emission reduction of about 66%, considering all Pareto-optimal solutions. Furthermore, a sensitivity analysis has been carried out by giving different weights to the objective functions that can be a basis for decision-makers regarding the adoption of this new technology.

Suggested Citation

  • Colovic, Aleksandra & Marinelli, Mario & Ottomanelli, Michele, 2024. "Towards the electrification of freight transport: A network design model for assessing the adoption of eHighways," Transport Policy, Elsevier, vol. 150(C), pages 106-120.
    • Handle: RePEc:eee:trapol:v:150:y:2024:i:c:p:106-120
    DOI: 10.1016/j.tranpol.2024.03.012
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