Tramp Ship Routing and Scheduling with Integrated Carbon Intensity Indicator (CII) Optimization

In response to growing environmental concerns and regulatory pressures, reducing carbon emissions in maritime transport has become a priority. Shipping companies face the challenge of balancing profitability objectives with the imperative to minimize their environmental footprint. This study address...

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Main Authors: Haiying Yang, Feiyang Ren, Jingbo Yin, Siqi Wang, Rafi Ullah Khan
Format: Article
Language:English
Published: MDPI AG 2025-04-01
Series:Journal of Marine Science and Engineering
Subjects:
Online Access:https://www.mdpi.com/2077-1312/13/4/752
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author Haiying Yang
Feiyang Ren
Jingbo Yin
Siqi Wang
Rafi Ullah Khan
author_facet Haiying Yang
Feiyang Ren
Jingbo Yin
Siqi Wang
Rafi Ullah Khan
author_sort Haiying Yang
collection DOAJ
description In response to growing environmental concerns and regulatory pressures, reducing carbon emissions in maritime transport has become a priority. Shipping companies face the challenge of balancing profitability objectives with the imperative to minimize their environmental footprint. This study addresses the tramp ship routing and scheduling problem by incorporating the carbon intensity indicator (CII) into the optimization framework. A bi-objective optimization model is developed, with two objective functions aimed at maximizing fleet profit and improving CII ratings. The Gale–Shapley algorithm is employed to achieve stable vessel–cargo matching, and the genetic algorithm is adopted for iterative optimization. This computational study, based on real historical data, verifies the effectiveness of the proposed model and algorithm. The results demonstrate notable improvements in fleet efficiency and environmental performance, increasing profitability by 4.38% while maintaining favorable CII ratings. The findings provide valuable theoretical guidance for shipping companies navigating increasingly stringent CII regulations.
format Article
id doaj-art-351f0d02f9534fbfa77a93eee1d6e2cf
institution OA Journals
issn 2077-1312
language English
publishDate 2025-04-01
publisher MDPI AG
record_format Article
series Journal of Marine Science and Engineering
spelling doaj-art-351f0d02f9534fbfa77a93eee1d6e2cf2025-08-20T02:28:23ZengMDPI AGJournal of Marine Science and Engineering2077-13122025-04-0113475210.3390/jmse13040752Tramp Ship Routing and Scheduling with Integrated Carbon Intensity Indicator (CII) OptimizationHaiying Yang0Feiyang Ren1Jingbo Yin2Siqi Wang3Rafi Ullah Khan4State Key Laboratory of Ocean Engineering, Department of Transportation Engineering, School of Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaCOSCO Shipping Technology Co., Ltd., Shanghai 200135, ChinaState Key Laboratory of Ocean Engineering, Department of Transportation Engineering, School of Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaState Key Laboratory of Ocean Engineering, Department of Transportation Engineering, School of Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaState Key Laboratory of Ocean Engineering, Department of Transportation Engineering, School of Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaIn response to growing environmental concerns and regulatory pressures, reducing carbon emissions in maritime transport has become a priority. Shipping companies face the challenge of balancing profitability objectives with the imperative to minimize their environmental footprint. This study addresses the tramp ship routing and scheduling problem by incorporating the carbon intensity indicator (CII) into the optimization framework. A bi-objective optimization model is developed, with two objective functions aimed at maximizing fleet profit and improving CII ratings. The Gale–Shapley algorithm is employed to achieve stable vessel–cargo matching, and the genetic algorithm is adopted for iterative optimization. This computational study, based on real historical data, verifies the effectiveness of the proposed model and algorithm. The results demonstrate notable improvements in fleet efficiency and environmental performance, increasing profitability by 4.38% while maintaining favorable CII ratings. The findings provide valuable theoretical guidance for shipping companies navigating increasingly stringent CII regulations.https://www.mdpi.com/2077-1312/13/4/752tramp ship routing and schedulingcarbon intensity indicatorbi-objective optimization modelGale–Shapley algorithmgenetic algorithm
spellingShingle Haiying Yang
Feiyang Ren
Jingbo Yin
Siqi Wang
Rafi Ullah Khan
Tramp Ship Routing and Scheduling with Integrated Carbon Intensity Indicator (CII) Optimization
Journal of Marine Science and Engineering
tramp ship routing and scheduling
carbon intensity indicator
bi-objective optimization model
Gale–Shapley algorithm
genetic algorithm
title Tramp Ship Routing and Scheduling with Integrated Carbon Intensity Indicator (CII) Optimization
title_full Tramp Ship Routing and Scheduling with Integrated Carbon Intensity Indicator (CII) Optimization
title_fullStr Tramp Ship Routing and Scheduling with Integrated Carbon Intensity Indicator (CII) Optimization
title_full_unstemmed Tramp Ship Routing and Scheduling with Integrated Carbon Intensity Indicator (CII) Optimization
title_short Tramp Ship Routing and Scheduling with Integrated Carbon Intensity Indicator (CII) Optimization
title_sort tramp ship routing and scheduling with integrated carbon intensity indicator cii optimization
topic tramp ship routing and scheduling
carbon intensity indicator
bi-objective optimization model
Gale–Shapley algorithm
genetic algorithm
url https://www.mdpi.com/2077-1312/13/4/752
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AT feiyangren trampshiproutingandschedulingwithintegratedcarbonintensityindicatorciioptimization
AT jingboyin trampshiproutingandschedulingwithintegratedcarbonintensityindicatorciioptimization
AT siqiwang trampshiproutingandschedulingwithintegratedcarbonintensityindicatorciioptimization
AT rafiullahkhan trampshiproutingandschedulingwithintegratedcarbonintensityindicatorciioptimization