Waste collection is one of city services that includes high costs and many operational issues. These costs include fixed costs such as vehicle fix cost and variable costs such as personnel costs, fuel cost, etc. Due to high cost and operational activities, improving operations in this area can have a significant impact on cost saving. In this study, a new model for the periodic capacitated arc routing problem with intermediate facilities is presented. In the proposed model, in addition to allowing each link to be visited within a few days of the time horizon, there are several intermediate facilities for evacuating vehicles.
