Pub Date : 2023-10-03DOI: 10.1080/03088839.2022.2057609
Lixian Fan, Yao Yu, Jingbo Yin
ABSTRACT With the rapid development of international shipping, ship source pollution is increasingly non-negligible. To control emissions of sulphur oxides from ships, many Sulphur Emission Control Areas (SECAs) have been established, in which stricter emission restriction policies were implemented. Because there are some genuine connections between SECA and PSC (Port State Control), it is natural to ask whether will the SECA policy make a difference on PSC’s inspection outcome? Therefore, this study investigates the effect of the SECA establishment, reflected by changes in the deficiency rate in PSC inspections, on the PSC’s inspection result. The deficiency rate in PSC inspections represents the percentage of deficiencies in the ship inspected, which can embody the overall outcome of the PSC inspections. It employs the difference-in-differences (DID) model to evaluate the effect as which is a common and mature tool for evaluating policy effectiveness. Robustness tests of parallel trend and Placebo tests both confirm the appropriateness of the DID model. The empirical results find that after the implementation of the SECA emission control policies, PSC inspections become stricter, thus changing the rate of deficiencies recorded during those inspections. A more stringent SECA policy is beneficial to identify more deficiencies and further ensure ships’ compliance.
{"title":"Impact of Sulphur Emission Control Areas on port state control’s inspection outcome","authors":"Lixian Fan, Yao Yu, Jingbo Yin","doi":"10.1080/03088839.2022.2057609","DOIUrl":"https://doi.org/10.1080/03088839.2022.2057609","url":null,"abstract":"ABSTRACT With the rapid development of international shipping, ship source pollution is increasingly non-negligible. To control emissions of sulphur oxides from ships, many Sulphur Emission Control Areas (SECAs) have been established, in which stricter emission restriction policies were implemented. Because there are some genuine connections between SECA and PSC (Port State Control), it is natural to ask whether will the SECA policy make a difference on PSC’s inspection outcome? Therefore, this study investigates the effect of the SECA establishment, reflected by changes in the deficiency rate in PSC inspections, on the PSC’s inspection result. The deficiency rate in PSC inspections represents the percentage of deficiencies in the ship inspected, which can embody the overall outcome of the PSC inspections. It employs the difference-in-differences (DID) model to evaluate the effect as which is a common and mature tool for evaluating policy effectiveness. Robustness tests of parallel trend and Placebo tests both confirm the appropriateness of the DID model. The empirical results find that after the implementation of the SECA emission control policies, PSC inspections become stricter, thus changing the rate of deficiencies recorded during those inspections. A more stringent SECA policy is beneficial to identify more deficiencies and further ensure ships’ compliance.","PeriodicalId":18288,"journal":{"name":"Maritime Policy & Management","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43275573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-22DOI: 10.1080/03088839.2023.2252431
Caroline Pereira Brum, Ricardo Gonçalves de Faria Corrêa, Diego A. de J. Pacheco, Thyago Celso Cavalcante Nepomuceno, Andréa Leda Ramos de Oliveira, Karina Braga Marsola
ABSTRACTDespite the potential cost reduction and environmental friendliness of inland lock waterways, there is a noticeable lack of scientific research on their efficiency and performance. Moreover, empirical insights into the impact of waterway locks on logistics systems are insufficient. Similarly, despite extensive research on data envelopment analysis (DEA) in various logistics contexts, the efficiency of waterway locks remains underexplored. This study addresses these gaps by evaluating inland waterway transposition efficiency based on operational aspects and handling capacity. In this study, data from nine primary inland waterway locks in an emerging economy were examined, comparing their relative efficiency by input-output relationships. Efficiency indices, performance objectives, benchmarks, composite efficiency, and separability conditions were calculated and analyzed. Our results highlight external factors like vessel numbers and volume as efficiency influencers. The study uncovers strategies to enhance efficiency, mainly through operational improvements or leveraging performance indices from other units. Empirical findings present opportunities to optimize maritime logistics operations, especially in countries with expansive territories. This is a novel research that introduces efficiency analysis models for inland waterway locks and offers actionable insights for an underexplored research area. Lastly, the article offers promising research opportunities for maritime logistics systems’ performance.KEYWORDS: Logistics efficiencyinland waterwayswaterway locksdata envelopment analysismaritime transpositionsupply chain management Disclosure statementNo personal or financial conflicts of interest are associated with this study.Additional informationFundingThe work was supported by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Brasil (CAPES) [Finance Code 001].
{"title":"Efficiency analysis of inland waterway locks in maritime transportation systems: practical, economic and policy implications","authors":"Caroline Pereira Brum, Ricardo Gonçalves de Faria Corrêa, Diego A. de J. Pacheco, Thyago Celso Cavalcante Nepomuceno, Andréa Leda Ramos de Oliveira, Karina Braga Marsola","doi":"10.1080/03088839.2023.2252431","DOIUrl":"https://doi.org/10.1080/03088839.2023.2252431","url":null,"abstract":"ABSTRACTDespite the potential cost reduction and environmental friendliness of inland lock waterways, there is a noticeable lack of scientific research on their efficiency and performance. Moreover, empirical insights into the impact of waterway locks on logistics systems are insufficient. Similarly, despite extensive research on data envelopment analysis (DEA) in various logistics contexts, the efficiency of waterway locks remains underexplored. This study addresses these gaps by evaluating inland waterway transposition efficiency based on operational aspects and handling capacity. In this study, data from nine primary inland waterway locks in an emerging economy were examined, comparing their relative efficiency by input-output relationships. Efficiency indices, performance objectives, benchmarks, composite efficiency, and separability conditions were calculated and analyzed. Our results highlight external factors like vessel numbers and volume as efficiency influencers. The study uncovers strategies to enhance efficiency, mainly through operational improvements or leveraging performance indices from other units. Empirical findings present opportunities to optimize maritime logistics operations, especially in countries with expansive territories. This is a novel research that introduces efficiency analysis models for inland waterway locks and offers actionable insights for an underexplored research area. Lastly, the article offers promising research opportunities for maritime logistics systems’ performance.KEYWORDS: Logistics efficiencyinland waterwayswaterway locksdata envelopment analysismaritime transpositionsupply chain management Disclosure statementNo personal or financial conflicts of interest are associated with this study.Additional informationFundingThe work was supported by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Brasil (CAPES) [Finance Code 001].","PeriodicalId":18288,"journal":{"name":"Maritime Policy & Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136060868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-20DOI: 10.1080/03088839.2023.2258125
Kazi Khaled Mahmud, Mohammed Mojahid Hossain Chowdhury, Md. Mostafa Aziz Shaheen
ABSTRACTPorts pose a substantial portion of marine emissions, causing significant health and environmental risks. Providing profitable services in compliance with environmental regulations has become a significant challenge for port authorities. The idea of green port management practices (GPMP) has recently grown as an innovative method for balancing port economic growth with ecological issues. The study systematically reviewed the literature regarding the green port management model and identified an integrated set of drivers of GPMP for sustainable port operations. Besides, an empirical multiple case study methodology was adopted where twelve major Asian ports from developing and developed countries were investigated through a performance-based scoring measurement method based on their GPMP drivers’ implementation status. Finally, the study employed a quantitative fuzzy decision-making trial and evaluation laboratory model (DEMATEL) to examine the interdependent cause-and-effect connections among the different green port drivers. The study reveals that Singapore is rated highest in green port implementation practices while the Port of Male (Maldives) was classified lowest among 12 Asian ports. Besides, Pollution Control Measures are the most significant driver having the highest influence on all drivers. Automation and digitalization have the most significant causal influence on all the drivers of GPMP, followed by environmental incentives and penalty pricing.KEYWORDS: green portdriversSustainabilityMaritime port industryfuzzy DEMATELAsian Disclosure statementNo potential conflict of interest was reported by the author(s).
{"title":"Green port management practices for sustainable port operations: a multi method study of Asian ports","authors":"Kazi Khaled Mahmud, Mohammed Mojahid Hossain Chowdhury, Md. Mostafa Aziz Shaheen","doi":"10.1080/03088839.2023.2258125","DOIUrl":"https://doi.org/10.1080/03088839.2023.2258125","url":null,"abstract":"ABSTRACTPorts pose a substantial portion of marine emissions, causing significant health and environmental risks. Providing profitable services in compliance with environmental regulations has become a significant challenge for port authorities. The idea of green port management practices (GPMP) has recently grown as an innovative method for balancing port economic growth with ecological issues. The study systematically reviewed the literature regarding the green port management model and identified an integrated set of drivers of GPMP for sustainable port operations. Besides, an empirical multiple case study methodology was adopted where twelve major Asian ports from developing and developed countries were investigated through a performance-based scoring measurement method based on their GPMP drivers’ implementation status. Finally, the study employed a quantitative fuzzy decision-making trial and evaluation laboratory model (DEMATEL) to examine the interdependent cause-and-effect connections among the different green port drivers. The study reveals that Singapore is rated highest in green port implementation practices while the Port of Male (Maldives) was classified lowest among 12 Asian ports. Besides, Pollution Control Measures are the most significant driver having the highest influence on all drivers. Automation and digitalization have the most significant causal influence on all the drivers of GPMP, followed by environmental incentives and penalty pricing.KEYWORDS: green portdriversSustainabilityMaritime port industryfuzzy DEMATELAsian Disclosure statementNo potential conflict of interest was reported by the author(s).","PeriodicalId":18288,"journal":{"name":"Maritime Policy & Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136308625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-19DOI: 10.1080/03088839.2023.2196754
Yuquan Du, Chen Li, Tingsong Wang, Ya Xu
The world trade and international freight transport rely mainly on the maritime industry, while the maritime industry in turn survives on the efficient and sustainable operations of ports and shipping businesses. Maintaining and improving the efficient daily operations of ports and shipping companies rely on both strategic intelligence of decision makers and tangible solutions for a wide range of problems, such as berth allocation and quay/yard crane assignment, yard planning, shipping network design, fleet deployment, and speed optimization and weather routing of ships. Apart from efficiency, more and more sustainability issues have been confronting the operations of ports and shipping businesses, such as emission mitigation, increased costs, irrational investment decisions, and market turmoil. Facing these efficiency and sustainability issues, a bunch of new technologies have been emerging, such as digitalization, big data, data analytics, artificial intelligence (AI), digital twin, block chain, autonomous ships, drones, to name but a few. This special issue aims to encourage research efforts of initiating innovative solutions based on emerging technologies to address efficiency and sustainability issues facing smart port and shipping operations. Saha (2021) and Irannezhada and Faroqi (2021) are two papers in this special issue focusing on smart shipping. Saha (2021) looks forward to future autonomous operations of ships at a Shore Control Center (SCC) and the according competence requirements for the SCC Operators (SCCOs). Through semi-structured interviews with stakeholders, he finds that system understanding, communicational and technical knowledge, and maritime competence, among other factors, represent the top three key competences. He also proposes the policy implications on modifications of the competence and training requirements at the early functioning period of SCC. Bill of Lading (B/L) is one of the most important documents among stakeholders in global logistics and container shipping. A traditional paper-based B/L has many efficiency and security issues such as double-spending, duplicated documents, masqueraded information, and fraud and hacking threats. Irannezhada and Faroqi (2021) propose a conceptual framework with a multi-layer architecture that addresses these B/L issues by incorporating IoT and blockchain technologies. Technical details and roles of each layer are formulated, such as transaction verification at smart gates, privacy and consensus protocols, transaction ledger, and structure of blocks in blockchain layers. Most of the papers in this special issue are in the stream of smart ports. Boullauazan et al. (2022) examine the existing literature and propose a maturity model for smart ports consisting of two dimensions: maturation path and maturity domains. A case study is conducted towards the port of Moerdijk. In the maturation path proposed by Boullauazan et al. (2022), ‘integration focus’ is identified as the second
{"title":"Special issue on “Smart port and shipping operations” in Maritime Policy & Management","authors":"Yuquan Du, Chen Li, Tingsong Wang, Ya Xu","doi":"10.1080/03088839.2023.2196754","DOIUrl":"https://doi.org/10.1080/03088839.2023.2196754","url":null,"abstract":"The world trade and international freight transport rely mainly on the maritime industry, while the maritime industry in turn survives on the efficient and sustainable operations of ports and shipping businesses. Maintaining and improving the efficient daily operations of ports and shipping companies rely on both strategic intelligence of decision makers and tangible solutions for a wide range of problems, such as berth allocation and quay/yard crane assignment, yard planning, shipping network design, fleet deployment, and speed optimization and weather routing of ships. Apart from efficiency, more and more sustainability issues have been confronting the operations of ports and shipping businesses, such as emission mitigation, increased costs, irrational investment decisions, and market turmoil. Facing these efficiency and sustainability issues, a bunch of new technologies have been emerging, such as digitalization, big data, data analytics, artificial intelligence (AI), digital twin, block chain, autonomous ships, drones, to name but a few. This special issue aims to encourage research efforts of initiating innovative solutions based on emerging technologies to address efficiency and sustainability issues facing smart port and shipping operations. Saha (2021) and Irannezhada and Faroqi (2021) are two papers in this special issue focusing on smart shipping. Saha (2021) looks forward to future autonomous operations of ships at a Shore Control Center (SCC) and the according competence requirements for the SCC Operators (SCCOs). Through semi-structured interviews with stakeholders, he finds that system understanding, communicational and technical knowledge, and maritime competence, among other factors, represent the top three key competences. He also proposes the policy implications on modifications of the competence and training requirements at the early functioning period of SCC. Bill of Lading (B/L) is one of the most important documents among stakeholders in global logistics and container shipping. A traditional paper-based B/L has many efficiency and security issues such as double-spending, duplicated documents, masqueraded information, and fraud and hacking threats. Irannezhada and Faroqi (2021) propose a conceptual framework with a multi-layer architecture that addresses these B/L issues by incorporating IoT and blockchain technologies. Technical details and roles of each layer are formulated, such as transaction verification at smart gates, privacy and consensus protocols, transaction ledger, and structure of blocks in blockchain layers. Most of the papers in this special issue are in the stream of smart ports. Boullauazan et al. (2022) examine the existing literature and propose a maturity model for smart ports consisting of two dimensions: maturation path and maturity domains. A case study is conducted towards the port of Moerdijk. In the maturation path proposed by Boullauazan et al. (2022), ‘integration focus’ is identified as the second","PeriodicalId":18288,"journal":{"name":"Maritime Policy & Management","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46897571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-10DOI: 10.1080/03088839.2023.2187472
Yang Liu, Xiaoxue Ma, Weiliang Qiao, Bing Han
Resilience theory is introduced in the present study to model the capability of the Arctic shipping system to defend against various risks. For this purpose, a novel methodology integrating a Bayesian network (BN), system dynamics (SD), and dissipative structure is proposed to quantitatively describe the dynamic resilience of the Arctic shipping system. The evolution of the system resilience with time is simulated, based on which the graphical results and discussion are devoted to revealing the dynamic evolution mechanism by integrating the three aspects of triggering conditions, priorities, and driving forces. Overall, the proposed resilience evolution model is suitable for complex systems with uncertainty and nonlinearity, and the results show that the proposed methodology can contribute to formulating future strategies and decisions to guarantee the safety of Arctic shipping.
{"title":"A methodology to model the evolution of system resilience for Arctic shipping from the perspective of complexity","authors":"Yang Liu, Xiaoxue Ma, Weiliang Qiao, Bing Han","doi":"10.1080/03088839.2023.2187472","DOIUrl":"https://doi.org/10.1080/03088839.2023.2187472","url":null,"abstract":"Resilience theory is introduced in the present study to model the capability of the Arctic shipping system to defend against various risks. For this purpose, a novel methodology integrating a Bayesian network (BN), system dynamics (SD), and dissipative structure is proposed to quantitatively describe the dynamic resilience of the Arctic shipping system. The evolution of the system resilience with time is simulated, based on which the graphical results and discussion are devoted to revealing the dynamic evolution mechanism by integrating the three aspects of triggering conditions, priorities, and driving forces. Overall, the proposed resilience evolution model is suitable for complex systems with uncertainty and nonlinearity, and the results show that the proposed methodology can contribute to formulating future strategies and decisions to guarantee the safety of Arctic shipping.","PeriodicalId":18288,"journal":{"name":"Maritime Policy & Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136130465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-09DOI: 10.1080/03088839.2023.2175271
G. Satta, F. Avallone, L. Persico, F. Parola, F. Vitellaro, C. Di Fabio
The paper investigates the determinants of M&As in the shipping industry by applying an original methodology paved on strategic management and financial perspectives. Despite the magnitude of the figures related to the financial deals and the potentially dramatic effects of M&As on the shipping industry, a literature gap persists in this business. No prior studies have theoretically and empirically addressed the determinants affecting the valuation process of target shipping companies. Therefore, financial multiples constitute a valuable method to address this topic. Given the relevance and size of the ro-pax and ferry market for the European maritime transport system as well as the increasing number of transactions, the paper investigates the determinants of the financial multiples in this market. The paper grounds on an original conceptual model that includes endogenous, exogenous, and transaction-related variables and proposes nine research hypotheses on endogenous variables. The hypotheses are empirically tested through ordinary least squares regression analysis on 85 M&As carried out in the 2005–2021 timeframe. The findings demonstrate differences between asset-side and equity-side multiples suggesting asset-side multiples are more suitable for pricing shipping companies. The paper adds extant academic literature by unveiling the principal endogenous variables that affect the due diligence of target ro-pax and ferry companies.
{"title":"M&As and determinants of financial multiples in shipping: the European ro-pax and ferry market","authors":"G. Satta, F. Avallone, L. Persico, F. Parola, F. Vitellaro, C. Di Fabio","doi":"10.1080/03088839.2023.2175271","DOIUrl":"https://doi.org/10.1080/03088839.2023.2175271","url":null,"abstract":"The paper investigates the determinants of M&As in the shipping industry by applying an original methodology paved on strategic management and financial perspectives. Despite the magnitude of the figures related to the financial deals and the potentially dramatic effects of M&As on the shipping industry, a literature gap persists in this business. No prior studies have theoretically and empirically addressed the determinants affecting the valuation process of target shipping companies. Therefore, financial multiples constitute a valuable method to address this topic. Given the relevance and size of the ro-pax and ferry market for the European maritime transport system as well as the increasing number of transactions, the paper investigates the determinants of the financial multiples in this market. The paper grounds on an original conceptual model that includes endogenous, exogenous, and transaction-related variables and proposes nine research hypotheses on endogenous variables. The hypotheses are empirically tested through ordinary least squares regression analysis on 85 M&As carried out in the 2005–2021 timeframe. The findings demonstrate differences between asset-side and equity-side multiples suggesting asset-side multiples are more suitable for pricing shipping companies. The paper adds extant academic literature by unveiling the principal endogenous variables that affect the due diligence of target ro-pax and ferry companies.","PeriodicalId":18288,"journal":{"name":"Maritime Policy & Management","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136171151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-15DOI: 10.1080/03088839.2022.2135177
Yunfeng Gao, Y. Ge
ABSTRACT The operations of yard cranes, external trucks and internal trucks in a maritime container terminal have an important impact on the operational efficiency of the terminal. A multi-objective optimization model is formulated in this paper, with a novel truck-based partition strategy, for a multiple-yard-crane scheduling problem, whose objective is to minimize both total longitudinal distance of yard cranes and total waiting time of internal and external trucks. The proposed model solves the truck assignment subproblem and the yard crane routing subproblem simultaneously to figure out how the trucks are to be served in an optimal manner by each yard crane and the optimal rank of each truck by which each yard crane provides container handling services in order. The effectiveness of the integrated truck-based and block-based scheduling strategies is validated by comparing with the existing strategies. Both the integrated block-based and the integrated truck-based scheduling strategies balance the two conflicting objectives better than the prioritized scheduling strategy and the first-come-first-served scheduling strategy. Numerical experiments shows that the advantage of the two integrated strategies is related to the ratio of the number of yard cranes to the number of container blocks. Some implications for port operation policy are also discussed.
{"title":"Integrated scheduling of yard cranes, external trucks, and internal trucks in maritime container terminal operation","authors":"Yunfeng Gao, Y. Ge","doi":"10.1080/03088839.2022.2135177","DOIUrl":"https://doi.org/10.1080/03088839.2022.2135177","url":null,"abstract":"ABSTRACT The operations of yard cranes, external trucks and internal trucks in a maritime container terminal have an important impact on the operational efficiency of the terminal. A multi-objective optimization model is formulated in this paper, with a novel truck-based partition strategy, for a multiple-yard-crane scheduling problem, whose objective is to minimize both total longitudinal distance of yard cranes and total waiting time of internal and external trucks. The proposed model solves the truck assignment subproblem and the yard crane routing subproblem simultaneously to figure out how the trucks are to be served in an optimal manner by each yard crane and the optimal rank of each truck by which each yard crane provides container handling services in order. The effectiveness of the integrated truck-based and block-based scheduling strategies is validated by comparing with the existing strategies. Both the integrated block-based and the integrated truck-based scheduling strategies balance the two conflicting objectives better than the prioritized scheduling strategy and the first-come-first-served scheduling strategy. Numerical experiments shows that the advantage of the two integrated strategies is related to the ratio of the number of yard cranes to the number of container blocks. Some implications for port operation policy are also discussed.","PeriodicalId":18288,"journal":{"name":"Maritime Policy & Management","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2022-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47453466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACT The background and contents of the Special Issue (SI) of “Integration and Cooperation in International Transportation” are summarized. The aim of the SI is the attraction and presentation of high-quality papers concerning this topic. “COOPERATION” and “INTEGRATION” are two promising topics of the published 8 papers. The beneficiaries of SI include academic researchers, shipping companies, railway companies, airline companies, terminal operators, and policy-makers
{"title":"Special Issue on ‘International trade transportation in the context of global industrial transfers’","authors":"Zhongzhen Yang, Qingcheng Zeng, Yonglei Jiang, Shanghua Wu","doi":"10.1080/03088839.2022.2086314","DOIUrl":"https://doi.org/10.1080/03088839.2022.2086314","url":null,"abstract":"ABSTRACT The background and contents of the Special Issue (SI) of “Integration and Cooperation in International Transportation” are summarized. The aim of the SI is the attraction and presentation of high-quality papers concerning this topic. “COOPERATION” and “INTEGRATION” are two promising topics of the published 8 papers. The beneficiaries of SI include academic researchers, shipping companies, railway companies, airline companies, terminal operators, and policy-makers","PeriodicalId":18288,"journal":{"name":"Maritime Policy & Management","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42138299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-13DOI: 10.1080/03088839.2022.2086313
Yu Sun, F. Lian, Weiyou Guo, Zhongzhen Yang
ABSTRACT We introduce quaternary and ternary diagrams to analyze temporal-spatial changes in the supply and demand shares of marine products, respectively. Subsequently, we build a marine product supply selection model to calculate the quantities of marine products furnished by supply channels and estimate the demand for marine products in China’s three coastal areas. These are used to demonstrate the supply gap of marine products in China before we optimize and adjust the supply scheme of marine products for China. The results show that China’s coastal areas import large volumes of fish, crustaceans and molluscs. In the Bohai Bay Rim, the domestic supply of marine products (except for fish and crustaceans) is greater than imports, while in the Yangtze River Delta and Southern China coastal areas, the domestic supply of all marine products is greater than imports. Domestic channels thus cannot fully satisfy coastal demand for marine products. In order to meet the demand, China should enlarge its imports from Europe and Asia, encourage ocean-going fishing vessels to directly transport all harvests back to China, and strengthen fishing port construction so as to promote the development of China’s seafood imports and pelagic fisheries.
{"title":"The spatial evolution and optimization of supply channels for marine products consumed in China","authors":"Yu Sun, F. Lian, Weiyou Guo, Zhongzhen Yang","doi":"10.1080/03088839.2022.2086313","DOIUrl":"https://doi.org/10.1080/03088839.2022.2086313","url":null,"abstract":"ABSTRACT We introduce quaternary and ternary diagrams to analyze temporal-spatial changes in the supply and demand shares of marine products, respectively. Subsequently, we build a marine product supply selection model to calculate the quantities of marine products furnished by supply channels and estimate the demand for marine products in China’s three coastal areas. These are used to demonstrate the supply gap of marine products in China before we optimize and adjust the supply scheme of marine products for China. The results show that China’s coastal areas import large volumes of fish, crustaceans and molluscs. In the Bohai Bay Rim, the domestic supply of marine products (except for fish and crustaceans) is greater than imports, while in the Yangtze River Delta and Southern China coastal areas, the domestic supply of all marine products is greater than imports. Domestic channels thus cannot fully satisfy coastal demand for marine products. In order to meet the demand, China should enlarge its imports from Europe and Asia, encourage ocean-going fishing vessels to directly transport all harvests back to China, and strengthen fishing port construction so as to promote the development of China’s seafood imports and pelagic fisheries.","PeriodicalId":18288,"journal":{"name":"Maritime Policy & Management","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2022-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42194375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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