Buffer time allocation in liner shipping schedule design with sea time and port time uncertainty
This study deals with the tactical-level design of buffer time in liner shipping network which aims to determine the optimal buffer time to be added into each voyage leg by taking into account time uncertainties at sea and port. This problem is formulated as a mixed-integer nonlinear stochastic prog...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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2017
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| Online Access: | http://hdl.handle.net/10356/71066 |
| _version_ | 1824456811939364864 |
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| author | Liu, Yuhan |
| author2 | Wang Zhiwei, David |
| author_facet | Wang Zhiwei, David Liu, Yuhan |
| author_sort | Liu, Yuhan |
| collection | NTU |
| description | This study deals with the tactical-level design of buffer time in liner shipping network which aims to determine the optimal buffer time to be added into each voyage leg by taking into account time uncertainties at sea and port. This problem is formulated as a mixed-integer nonlinear stochastic programming model. It first derives the optimal speed on each voyage leg for a closed-loop route under the assumption of zero uncertainty and subsequently incorporates the factor of sea time and port time uncertainties by random variables and introduces buffer time to hedge against uncertainties. The objective of the model is to balance the trade-off between schedule reliability and cost in which intangible costs are quantified by functions. This model is applicable to new shipping routes planning as well as existing shipping routes modification in terms of optimal buffer time amount. |
| first_indexed | 2025-02-19T04:00:02Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/71066 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T04:00:02Z |
| publishDate | 2017 |
| record_format | dspace |
| spelling | ntu-10356/710662023-03-03T16:54:29Z Buffer time allocation in liner shipping schedule design with sea time and port time uncertainty Liu, Yuhan Wang Zhiwei, David School of Civil and Environmental Engineering DRNTU::Engineering::Maritime studies This study deals with the tactical-level design of buffer time in liner shipping network which aims to determine the optimal buffer time to be added into each voyage leg by taking into account time uncertainties at sea and port. This problem is formulated as a mixed-integer nonlinear stochastic programming model. It first derives the optimal speed on each voyage leg for a closed-loop route under the assumption of zero uncertainty and subsequently incorporates the factor of sea time and port time uncertainties by random variables and introduces buffer time to hedge against uncertainties. The objective of the model is to balance the trade-off between schedule reliability and cost in which intangible costs are quantified by functions. This model is applicable to new shipping routes planning as well as existing shipping routes modification in terms of optimal buffer time amount. Bachelor of Science (Maritime Studies) 2017-05-15T03:41:52Z 2017-05-15T03:41:52Z 2017 Final Year Project (FYP) http://hdl.handle.net/10356/71066 en Nanyang Technological University 40 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Maritime studies Liu, Yuhan Buffer time allocation in liner shipping schedule design with sea time and port time uncertainty |
| title | Buffer time allocation in liner shipping schedule design with sea time and port time uncertainty |
| title_full | Buffer time allocation in liner shipping schedule design with sea time and port time uncertainty |
| title_fullStr | Buffer time allocation in liner shipping schedule design with sea time and port time uncertainty |
| title_full_unstemmed | Buffer time allocation in liner shipping schedule design with sea time and port time uncertainty |
| title_short | Buffer time allocation in liner shipping schedule design with sea time and port time uncertainty |
| title_sort | buffer time allocation in liner shipping schedule design with sea time and port time uncertainty |
| topic | DRNTU::Engineering::Maritime studies |
| url | http://hdl.handle.net/10356/71066 |
| work_keys_str_mv | AT liuyuhan buffertimeallocationinlinershippingscheduledesignwithseatimeandporttimeuncertainty |