Steps in vogel approximation method vam the standard instructions are paraphrased below. Identify the boxes having minimum and next to minimum transportation cost in each row and write the difference penalty along the side of the table against the corresponding row. Modi method the modi modified distribution method allows us to compute improvement indices quickly for each unused square without drawing all of the closed paths. In the previous section, we used vogel approximation method unit cost penalty method to solve a transportation problem.
In this context, the firms webservices were introduced1. In this study, vogels approximation method vam which is one of well known transportation methods in the literature was investigated to obtain more efficient initial solut ions. Vogel s approximation method vam 7,10,11,14 and extremum difference method edm 8 provides comparatively better initial basic feasible solution. In operation research, obtaining significant result for transportation problems is very important nowadays. Approximation method vam have been used to find initial basic feasible solution for the. Transportation problem set 6 modi method uv method. With the northwest corner method, an initial allocation is made to the cell in the upper lefthand corner of the tableau i. Identify the boxes having minimum and next to minimum transportation cost in each column and write the difference penalty against the corresponding column. The distinction between tools to assess data coverage and tools for data analysis was highlighted. Vogel s approximation method vam is the very efficient algorithm to solve the transportation problem for feasible solution which is nearer. The amount allocated is the most possible, subject to the supply and demand constraints for that cell. An example of a simple table with partners and number of reports was presented. Users can use such web services to filter the available information and. The vogel approximation unit penalty method is an iterative procedure for.
Transportation problem 5 vogals approximation method vam1. In this section, we provide another example to enhance your knowledge. This article will discuss how to optimize the initial basic feasible solution through an explained example. Obtaining initial solution of a transportation problem by vogals approximation method vam begin by computing for each row and column a. Because of this, it can often provide considerable time savings over other methods for solving transportation problems. Consider the transportation problem presented in the following table. The modi and vam methods of solving transportation problems. Pdf modified vogels approximation method for solving. We now proceed to formulate the matrix format of the transportation problem.
211 118 232 1360 518 880 1037 605 372 688 1398 1514 790 604 198 564 983 103 186 1164 795 597 627 861 1104 67 231 1383 28 1353 816 1054 1012 1283 25 304 1025 489 356