فهرست نشریات علمی دسترسی آزاد ایران

Unique challenges are presented by tunnel safety, requiring a practical and adaptable evaluation method. To address this need, a comprehensive safety index was developed in this study. The Analytic Hierarchy Process (AHP) was used with a panel of 43 experts to assign evidence-based weights to seven key safety categories. The results show that ‘Traffic Management and Surveillance’ (24%), ‘Emergency and Rescue Management’ (21%), and ‘Tunnel and Road Geometry’ (19%) are the most critical factors. The model was then validated through a case study of the Shohada-ye-Gaza Tunnel in Tehran, which scored 5.85, corresponding to a “Mean” safety level. Specific weaknesses were successfully pinpointed by the evaluation, demonstrating its utility as a diagnostic tool. Furthermore, it was confirmed by a sensitivity analysis that a 30% improvement in the ‘Traffic management and traffic surveillance’ category would raise the tunnel’s classification to “Good.” A validated, straightforward framework is provided by this research, enabling authorities to not only benchmark tunnel safety but also to strategically allocate resources for targeted improvements