02563nam a2200241   450000500170000000800410001703500150005810000190007324500830009226000520017530000100022749000230023750001620026050200580042252015050048065000330198570000330201870000450205170000480209671000570214481000550220185600650225620260818223302.0170398         th                  eng    a.b100460571 aLin, Sheng-nan12aA study on the location of maintenance units for telephone exchanges in Taipei  aBangkok :bAsian Institute of Technology,c1976  a73 p.1 aThesis ;vno. 1155  aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering of the Asian Institute of Technology, Bangkok, Thailand  aThesis (M.Eng.) - Asian Institute of Technology, 1976  aThis study is concerned with the problem of locating maintenance  units for the telephone exchanges in Taipei City (Taiwan). At present, the maintenance work for the telephone exchanges are done individually at each exchange resulting excessive expenditure because the exchanges are of  different systems. However, with the introduction of the Electronic Switching System (ESS) the problem of locating maintenance centers has became very important. For a region where there are many exchanges, to set up an integrated system of Maintenance Control and Repair Centers (MCRC) for uniform maintenance and cost reduction is highly desirable. In this study, a cost analysis is used for optimal location of MCRC's for the planned network of exchanges in Taipei. The study is divided into four parts. The first part included forecast of telephone stations requirement for the next fifteen years (1975-1990) . This forecast provided  the data for further analysis. The second part introduces the characteristic of the ESS. Two such systems have already been installed in Taiwan. In future all new as well as existing exchanges will be of the ESS type. In part three, two models are developed to compute the cost for locating the MCRC's at different possible places. To start with, a very simple model was used. However, this model was extended to incorporate many relevant factors. The last part includes interpretation of the results from the two models. The merits and demerits of the models are discussed. 0aTelephone stationsxLocation1 aSharif, M. N., eChairperson1 aPakorn Adulbhan, eExamination Committee0 aTechapun Raengkhum, eExamination Committee2 aGovernment of Republic of China, eScholarship Donor2 aAsian Institute of Technology.tThesis ;vno. 1155  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B23920