Using Theory of Constraints to Study the Service Management for

• Main Authors: Chuang, Cheng-hsiung, 莊政雄
• Other Authors: William Jen
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/06139878174330935486

碩士 === 國立交通大學 === 交通運輸研究所 === 86 === The Less-than-truckload (LTL) motor carrier is a regular route system that generally uses a breakbulk or hub-and-spoke system to consolidate freight. In recently, due to the growing concern about the deregulation of the motor carrier industry and the emergence of customer-oriented service, the LTL motor carriers must do something to improve their services. Traditionally, LTL motor carriers have operated on the basis of two assumptions .The first of these is that they are subdivide the operation system improve each part independently, the"glue"the improved parts back together with the expectation of overall operation system improvement. The second is that maximizing the performance of each part of the operation system will result in maximum. In reality, operation system behave more like chains : one weakest link determines how well the entire chain can perfo Generally, the theory of constraints has been used in real- environment contains two aspects: one is "policy constraints analysis", and the another is "physical constraints analysis". In policy analysis, we apply several tree diagrams to exploit the core constraints of Taiwan''s LTL motor carriers, and adopt the Drum-Buffer-Rope (DBR) approach to create "injections". In physical analysis, we apply "buffer management" to improve the physical problems in Taiwan''s LTL motor carriers. By means of a case study, We know that the "constraints" or "core problem" may be different among LTL motor carriers. However , the methods of using theory of constraints to study the service management for LTL motor carriers can apply to other situations . Therefore, we provided some discussions and suggestions to the managers of motor carriers and later research.