A slot reallocation model for containership schedule adjustment

Ship slot capacity is the main sale resource of container shipping lines. However, shipping lines often encounter situations, such as serious ship delays, that require adjustments of shipping schedules, causing the original delivery plans of some consignments to be altered. This study proposes an in...

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Bibliographic Details
Published in:Maritime policy and management Vol. 43; no. 1; pp. 136 - 157
Main Authors: Lu, Hua-An, Mu, Wen-Hung
Format: Journal Article
Language:English
Published: Abingdon Routledge 02.01.2016
Taylor & Francis Ltd
Subjects:
Adjustment
Capacity
Case depth
Case studies
Containers
deep ocean loop
Delivery scheduling
Empty
empty container repositioning
Integer programming
integer programming model
Lines
Maritime industry
Ocean traffic
Policies
Ports
Rotation
Schedules
Shipping
Shipping industry
Ships
slot reallocation
ISSN:0308-8839, 1464-5254
Online Access:Get full text
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Summary:Ship slot capacity is the main sale resource of container shipping lines. However, shipping lines often encounter situations, such as serious ship delays, that require adjustments of shipping schedules, causing the original delivery plans of some consignments to be altered. This study proposes an integer programming model for slot reallocation planning, based on a given adjusted schedule. Decisions regarding empty container repositioning are also examined. This model aims to maximise a company's benefits from deliveries of consignments and movements of empty containers. Available slots are subject to port rotation changes, allowable port handlings and ship capacity. A case study of a deep ocean loop demonstrates optimal slot reallocation, and empty container repositioning is used for illustrative purposes. The reallocation characteristics due to benefit items and the model's applicability to large-scale examples are discussed.
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ISSN:0308-8839
1464-5254
DOI:10.1080/03088839.2015.1037371