碩士 / 國立臺灣海洋大學 / 航運管理學系 / 97 / Liner shipping industry is a global industry. The revenue of individual carrier is often affected by the ups and downs of freights in the market, but it can control the own cost through well inner operation. Seaborne transit path planning is a vital issue what the carrier concerns. The purpose of this planning is to arrange all of delivery paths for containers of all origin-destination (OD) port pairs under satisfying transport demands and within qualified service durations and to spend the lowest transit costs.
This research uses the characteristics of transit path planning and the concept of network graph to build a mathematical programming model with considering one path for one OD port pair. This model is a multi-commodity flows problem. This research uses C language to write the problem generator and to call the CPLEX function for solving cases. An example of the shipping lines with short-sea services is tested. No matter the separated cases or its whole scale, the solving results can provide the promising decisions in practice for carrier’s seaborne transit path planning.
Also, this research conducts the sensitivity analysis for many critical parameters. To take transit time as an example, the result reveals that if the carrier only considers in choosing the shortest path as programming, total transit cost may raise. Sometimes, loosing the transit time limitation may be helpful to save the total cost although such practice may make shippers inconvenience. Another example is space supply, it reveals that if the carrier increases the space supply on transit routes, it may be useful to make path planning cost down. Finally, this research takes the discount contracts signed by both shipper liners and port authorities into consideration. Sensitivity analysis shows that discount stevedoring rates applied by the transshipped ports may affect the transit path planning and result in operating cost saving and the increment of transshipment cargoes in such ports.
| Identifer | oai:union.ndltd.org:TW/097NTOU5301089 |
| Date | January 2009 |
| Creators | Ping-Min Chien, 簡秉民 |
| Contributors | Hua-An Lu, 盧華安 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 84 |
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