A systematic decision-making process flow for circular dismantling of trains: a case study

This paper investigates the decision-making process for dismantling assets at the end of their lifecycle, focusing on maximizing circularity through reuse, resale, and recycling. Through a case study on train dismantling, this research outlines a structured process to ensure efficient, sustainable disposal of materials, guided by established frameworks and strategies prioritizing circular economy principles. The case study identifies 18 key steps involved in dismantling a train, involving eleven stakeholders, each assigned distinct roles such as responsible, accountable, supporting, advising, and informed. These roles help ensure a collaborative approach that aligns with sustainability goals. The analysis also includes insights into the critical decision-making factors that guide the prioritization of actions, such as selling surplus assets, reusing parts, and recycling remaining materials. Furthermore, the paper explores the broader application of this decision-making flow to other stakeholders and companies involved in dismantling, offering comprehensive insights for sustainable asset disposal. This study highlights how organizations can successfully implement dismantling strategies that advance circular economy objectives by outlining clear roles and responsibilities.