Design of Distribution Network for Essential Items in Large Earthquake Conditions (Case Study: Tehran)

Current societies are obliged to make the necessary plans for effective response and reducing the destructive effects of disasters. In this research, a mathematical planning model under uncertainty has been developed for earthquake relief and response. In the presented model to increase the reliability, the possibility of facility failure is considered according to the intensity of the earthquake. Distribution centers are considered to be of two types, the first type is local distribution centers, which use public centers and are close to the accident points, these types of centers are prone to failure because they use public centers. Another type is the reliable distribution centers that are built outside the accident area and have a very low probability of failure due to spending more money to build them. In the new model presented, in addition to considering the reliability capabilities, it has been tried to provide a more complete model for planning in the transportation issue by considering the multi-trips mode in the vehicles. Uncertainty is presented using the probability approach based on the modeling scenario and a case study from the city of Tehran to show the performance of the proposed model. The results obtained from the proposed model show that effective and efficient aid delivery is done in terms of time and cost, therefore it can help crisis managers in response to the crisis in order to provide the required budget and appropriate logistics planning.