Over the last decades, the growth of international trade increased significantly. Especially with increased export from Asian countries with lower production costs. Since transportation cost takes a significant portion among all of the elements in logistics chain, it is important to plan and calculate most efficient route. With growth of international shipping also increased domestic movements of freight. Companies has to find an optimal solution for moving their goods from factory to warehouse and from warehouse to distribution centers. Organizations has to look at many factors (objective and subjective) before they will make a rational decision and pick a suitable technique. To solve this problem, many researches has proposed various techniques. The paper offers a solution to transportation model. TRANSPORTATION PROBLEM. Transportation modeling demonstrates slightest expense method for delivery supplies from origin points to destination points. When do we need to apply transportation problem: Find minimum shipping cost; Find the location, which has a lower cost; Determine minimum cost production schedule. What do we need to apply the transportation model: Capacity or supply per period of time at each source; The demand per period of time at each destination; The shipping price between each destination point. Sample problem: In a 3x3 transportation problem, let x_ij be the amount shipped from source i to destination j and c_ij be the corresponding transportation
Abdelwahab, W. M., M. Sargious. 1990. Freight rate structure and optimal shipment size in freight transportation. Logist. Transportation Rev. 6(3) 271-292.
One of the main ‘flows’ on transport, are goods (food, objects) that will be traded with other countries. The main improvement that has taken place in recent times is the creation of the freight transport, containerization. These containers can be loaded and unloaded, stacked, transported efficiently over long distances, and transferred from one mode of transport to another—container
The network design process is used to formulate decisions concerning various aspects of logistics networks (Croxton & Zinn, 2005). Efficient logistics networks are essential for transporting people and goods in the 21st century. In this regard, Katsioloudis (2009) advises that, "Transportation networks facilitate the movements of goods and people to markets and are essential for the prosperity of a society and the competitiveness of an economy" (p. 7). Designing a logistics network in general is a major component of successful material handling. For instance, according to Cheong, Bhatnagar and Graves (2007), "Designing a logistics network that maximizes the utilization of the transport and warehouse capacity in
Transit time is an important element as well. Any reduction in transit time therefore reduces the overall cost of the delivered goods. Transit times can be improved by
The intent of this analysis is to compare and contrast the cost structures for rail, motor carriers and air modes of transportation. Implicit in this analysis is the rapid adoption of intermodal transportation which is often optimized to specific logistics and supply chain objectives (Jennings, Holcomb, 1996).
W. W. Grainger, Inc. is recently thinking of redesigning the supply chain for shipments from China/Taiwan. The reason being as an obvious to reduce costs, lead times and to improve supply chain efficiency. The major issue identified was the lead time and a huge fixed overhead because of small shipments which then were consolidated by the company to make a full 40-feet container load. Through a thorough cost analysis and weightage of pros and cons of three alternatives, the team recommends to use an NVOCC (Non-Vessel operating common carrier) for small shipments which will lead to a lot lesser lead times and will help reduce costs as well. Along with this, the recommendation is also to increase packing efficiency for
25. The "total cost approach" to physical distribution focuses exclusively on the total cost of transporting a
In a transportation problem, a demand constraint (the amount of product demanded at a given destination) is a less-than-or equal-to
There is a total capacity (rail carloads) of 14 that is available to serve a total demand (rail carloads sold) of 15. With this mentioned, there is an unbalanced capacity and demand. To solve for the proper shipping route, we will have to include a dummy
T. C. Edwin Cheng Department of Logistics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong E-mail: lgtcheng@inet.polyu.edu.hk
And a transportation model is used to minimize the cost of shipping from the production plants to the distribution centers.
Options for delivering product to customers can be done “In House” or provided by a 3rd party service provider. Currently Target enlists the services of Ryder trucking for the scheduling and dispatching of trucks from the Distributions Centers to the stores. Swift Trucking and Ruan Transportation provide the drivers and trucks that transport the trailers from the Distribution Centers to the stores. For the Fulfillment Centers, Target uses FedEx, UPS and the United States Postal Service. The problem posed in this paper is to determine the best way to get the product from the min fulfillment center to the customer in the most efficient way. Using the Linear Programing Model we can show costs for the distribution of customer packages from the various shipping options.
Transshipment problem is a special type of transportation problem involving intermediate nodes. These problems in which a shipment may move through intermediate nodes before reaching a particular destination node. It can be converted to larger transportation problems and solved by a special transportation program. It can also be solved by general purpose linear programming codes.
SCM can be divided into three main groups: purchase, manufacture, and transport (Thomas et al., 1996). The focus is on transportation. There are different modes of transportation. These modes of transportation fall under three basic types and they are: land (road, rail and pipelines), water (shipping) and air. Transportation plays a connective role among the several steps that result in the conversion of resources into useful goods for the ultimate consumer. It is the planning of all these functions and sub-functions into a system of goods movement in order to minimize cost and maximize service to the customers that constitutes the concept of business logistics. The system, once it’s put in place, must be effectively managed (Fair & Williams, 1981). What are the advantages and disadvantages of these modes of transportation in logistics?
Transport plays a critical role in the supply chain and according to Bhattacharya et al. (2014) it is becoming one of the key components of the whole supply chain valuation for many organizations. Transportation is the movement of good from one location to another. Supply chain is a network of individuals, organizations, activities, resources and technology that is involved in formation and sale of a product, which is from the delivery of source materials from the supplier to the manufacturer, through to the end user. Hopkins (2007) states that supply chain professionals look at whole business procedures, which is from raw materials to manufacturing, wholesaling and retailing. And by