Vehicle Routing Problem with a Time Window and Stochastic Demand and by Assuming a Competitor in Meeting the Customers' Demands

Document Type : Original Article

Authors

1 Ph.D. in Industrial Management Department of Industrial Management, College of Humanities Hamedan Branch, Islamic Azad University, Hamedan, Iran.

2 Ph.D. in Industrial Engineering, Department of Industrial Engineering, Faculty of Industrial Engineering, North Tehran Branch, Islamic Azad University, Tehran, Iran.

3 Ph.D. in Industrial Engineering, Department of Industrial Management, Faculty of Management, South Tehran Branch, Islamic Azad University, Tehran, Iran.

Abstract

In this study, a combination of different vehicle routing problems called Vehicle Routing Problem with a Time Window and Stochastic Demand has been examined. The difference between previous papers and this paper is that in our problem, the competitors compete with each other to meet the demands of customers in a specific industry. It seems that these problems occur in real life as well. In most real environmental problems, customers materialize their utmost demand for a vehicle that reaches on time and sooner than other competitors. The target function is to maximize the profit earned through the sale of goods to customers. Solving the research model in several trivial problems has been made precisely by using GAMZ Software.

In this study, a combination of different vehicle routing problems called Vehicle Routing Problem with a Time Window and Stochastic Demand has been examined. The difference between previous papers and this paper is that in our problem, the competitors compete with each other to meet the demands of customers in a specific industry. It seems that these problems occur in real life as well. In most real environmental problems, customers materialize their utmost demand for a vehicle that reaches on time and sooner than other competitors. The target function is to maximize the profit earned through the sale of goods to customers. Solving the research model in several trivial problems has been made precisely by using GAMZ Software.

Keywords