Integration of GIS into supply chain decision support systems :application at the Vietnam LPG Co. | |
| Author | Phan Quoc Nghia |
| Call Number | AIT Thesis no.ISE-00-22 |
| Subject(s) | Geographic information systems Business logistics--Vietnam |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Advanced Technologies |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ISE-00-22 |
| Abstract | Supply Chain Management is the planning and control flow of goods, materials from the original suppliers through multiple logistics and productions to the ultimate consumer, to speed market, reduce invent01y level, lower overall cost and, ultimately, enhance customer service and satisfaction. The main purpose of this study is to develop the Decision Support System (DSS) for distribution system based on the integration of geographic information system (GIS) into Supply Chain. In this study, a solution for a vehicle routing problem (VRP) has been presented which occurs in a major LPG Company in HoChiMinh City. The company serves 247 customers with different order quantity and frequency. The schedule needs to be made over one week horizon. Optimal fleet size is also considered in the general context that minimizes the total distribution cost. A mathematical model of mixed integer programming (MIP) is applicable to ve1y small size problems (composed of from five to ten customers on two days). Therefore, a Tahu search heuristic, which consists of three phases, has been proposed. In phase 1, a goal-programming model to decompose a multiple period VRP into some single period VRPs has been established. Phase 2 determines a set of routes, which are required to visit all customers each day of the period. Dispatching of routes to vehicles in the fleet has been presented in phase 3. Tahu search technique is applied for phase 2 and phase 3. The outputs of the Tahu search heuristic are the number of trucks, the number of customers to be served on each day, and the sequence of each delivery route. Then, these results have been processed by using Arc View GISI Network Analyst Module to achieve ve1y practical results that can be used for daily vehicle routing planning, finding closest facility, and finding locations for new depots. The HCMC map, which processed by ArcView GIS with customer's locations, is developed. The Decision Support engine was the Arc View GISI Network Analyst module. The Decision Support System Version 1.0 for distribution was developed by integrating Customers Profile, Initial Solution, Vehicle Routing, and Decision Support (ArcView GISI Network Analyst) modules. The Decision Support System improved the flexibi lity in application. Moreover, many other complicated problem of distribution can be solved by this system. |
| Year | 2000 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ISE-00-22 |
| Type | Thesis |
| School | School of Advanced Technologies (SAT) |
| Department | Department of Industrial Systems Engineering (DISE) |
| Academic Program/FoS | Industrial Systems Engineering (ISE) |
| Chairperson(s) | Nagarur, Nagendra N.; |
| Examination Committee(s) | Bohez, Erik L.J.;Tripathi, Nitin K.; |
| Scholarship Donor(s) | Petro Vietnam Corporation; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2000 |