A Co-design and Co-evaluation Model for the Reconversion of Dismissed Railways to Greenways: The Case of Misterbianco

The conversion of dismissed railway infrastructure into greenways has emerged as a sustainable strategy for enhancing mobility, fostering social interaction, and promoting environmental resilience. This study focuses on the transformation of a segment of the former Circumetnea railway in Misterbianco, a key urban center in the Metropolitan City of Catania. Using a participatory co-design and Social Multi-Criteria Evaluation (SMCE) approach, the research aimed to integrate community needs into the planning and design process. Through stakeholder engagement, focus groups, and co-evaluation workshops, the study identified mobility patterns, safety concerns, and recreational preferences among Misterbianco’s residents. Key findings indicate that the greenway must prioritize accessibility, security, and social value by incorporating dedicated cycling and walking paths, enhanced lighting, and bike-sharing facilities. The SMCE framework allowed for an objective assessment of design alternatives, balancing technical feasibility with community expectations. The results underscore the importance of participatory planning in infrastructure projects, ensuring that redevelopment efforts align with local needs. The Misterbianco case serves as a model for similar railway-to-greenway conversions, demonstrating how co-evaluation methodologies can optimize functionality, social cohesion, and environmental sustainability. Future research should assess long-term usage patterns and economic impacts to refine planning strategies for green mobility networks.