Modelling and improvement of supply chain with imprecise transportation delays and resilience factors

A three-echelon supply chain (SC) has been considered in which the disruption may occur in a transportation system. An optimised policy in bringing resilient factors into account is developed. The factors of resilience are visibility, velocity, redundancy and flexibility. First, an SC is designed and simulated. The simulation is carried out for different scenarios which are a combination of different policies. Several outputs including average time in system, utility of resources, number of breakdowns, and total cost are computed. Then, fuzzy data envelopment analysis is used to identify the preferred scenario. The proposed policy of this study would help managers to identify the preferred strategy. This is the first study that introduces the best policy in bringing the resilient factors into an SC transportation system with fuzzy parameters. The results show the important role of visibility and redundancy among the factors of resilience.