With the increasing popularity of transportation, the utilization of road infrastructure has significantly risen, leading to growing congestion on expressways. As traffic volume increases, the deterioration of roadway conditions has also accelerated. Consequently, there is an urgent need for the renovation and expansion of expressways. During such construction periods, it is essential not only to ensure the safety of construction activities but also to maintain continuous traffic flow. However, the coexistence of being open to traffic and ongoing construction poses mutual challenges. Therefore, how to effectively manage construction safety during expressway reconstruction and expansion has become a critical issue in current engineering practice. This study applies the Analytic Hierarchy Process (AHP) to develop an analytical model for evaluating safety-related influencing factors in expressway reconstruction and expansion projects. Through systematic analysis and computation, the relative weights of each factor are determined, enabling meaningful conclusions to be drawn. Based on these findings, practical recommendations are proposed to enhance safety management, thereby providing valuable reference for similar future projects.
Yu et al. (Thu,) studied this question.