首页 > 最新文献

Maritime Transport Research最新文献

英文 中文
Governing coalitions and key performance indicators of port governance 治理联盟和港口治理的关键绩效指标
Q2 TRANSPORTATION Pub Date : 2021-01-01 DOI: 10.1016/j.martra.2021.100023
Henrique Campos de Oliveira , Jongeun You , André Pires Coelho

The port is a crucial part of the international transportation of goods. As technological advances in the maritime industry have driven drastic changes in port policies, scholars have studied decisions on cargo shipping, port regulatory frameworks, and the interests involved in such changes. However, the connection of policy actors to port performance in the maritime transport literature remains largely understudied due to the complexity and heterogeneity of institutional designs chosen by countries. To move towards filling the gap, this paper explores links between governing coalitions and key performance indicators of port governance. We propose eight typologies for classifying governing coalitions of port governance, drawing insights from the Advocacy Coalition Framework. We then explore how different port governance forms are associated with key performance indicators of 17 countries. This paper finds that countries opting for decentralization do not necessarily support trade liberalization or port privatization. The results also show that decentralized governing coalitions are positively associated with higher key performance indicators of port governance.

港口是国际货物运输的重要组成部分。由于海运业的技术进步推动了港口政策的剧烈变化,学者们研究了货运决策、港口监管框架以及这些变化所涉及的利益。然而,由于各国选择的制度设计的复杂性和异质性,海运文献中政策参与者与港口绩效的联系在很大程度上仍然没有得到充分研究。为了填补这一空白,本文探讨了治理联盟与港口治理关键绩效指标之间的联系。我们根据倡导联盟框架提出了八种类型的港口治理治理联盟分类。然后,我们探讨了不同的港口治理形式如何与17个国家的关键绩效指标相关联。本文发现,选择权力下放的国家并不一定支持贸易自由化或港口私有化。研究结果还表明,权力下放的治理联盟与港口治理的更高关键绩效指标呈正相关。
{"title":"Governing coalitions and key performance indicators of port governance","authors":"Henrique Campos de Oliveira ,&nbsp;Jongeun You ,&nbsp;André Pires Coelho","doi":"10.1016/j.martra.2021.100023","DOIUrl":"https://doi.org/10.1016/j.martra.2021.100023","url":null,"abstract":"<div><p>The port is a crucial part of the international transportation of goods. As technological advances in the maritime industry have driven drastic changes in port policies, scholars have studied decisions on cargo shipping, port regulatory frameworks, and the interests involved in such changes. However, the connection of policy actors to port performance in the maritime transport literature remains largely understudied due to the complexity and heterogeneity of institutional designs chosen by countries. To move towards filling the gap, this paper explores links between governing coalitions and key performance indicators of port governance. We propose eight typologies for classifying governing coalitions of port governance, drawing insights from the Advocacy Coalition Framework. We then explore how different port governance forms are associated with key performance indicators of 17 countries. This paper finds that countries opting for decentralization do not necessarily support trade liberalization or port privatization. The results also show that decentralized governing coalitions are positively associated with higher key performance indicators of port governance.</p></div>","PeriodicalId":100885,"journal":{"name":"Maritime Transport Research","volume":"2 ","pages":"Article 100023"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.martra.2021.100023","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72122398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Piracy defense strategies for shipping companies and ships: A mixed empirical approach 航运公司和船舶的海盗防御策略:一种混合实证方法
Q2 TRANSPORTATION Pub Date : 2021-01-01 DOI: 10.1016/j.martra.2021.100020
Po-Hsing Tseng , Zhao-Chao Her , Nick Pilcher

Piracy attacks constitute a serious threat against which ships must be ready to defend themselves, particularly given the financial, political and logistical challenges involved in ensuring internationally coordinated protection. Yet, defense is highly challenging given the range of ship types, differing levels of government support, a constantly adapting pirate body, and pressures on costs and resources. Indeed, despite much guidance to deal with piracy, attacks continue unabated, and ships must defend themselves. To complement such guidance and suggest priorities for ship defense, this paper adopts a Fuzzy Analytic Hierarchy Process (FAHP) and in-depth interviews to identify key strategic criteria against piracy attacks. Questionnaire responses were from 14 shipping operators and 7 academics. Subsequently, highly experienced government officials (n=3) and shipping operators (n=3) were interviewed to provide additional depth and perspectives. Results show key criteria are international conventions and policy, followed by defense strategies in perilous water areas, and ship's hardware and software. Regarding implementation, it is suggested shipping companies take ownership of any measures introduced, and outlined how they can do so. Also, managerial implications for shipping companies, governments, international bodies and researchers are outlined.

海盗袭击是一种严重威胁,船只必须做好自卫准备,特别是考虑到确保国际协调保护所涉及的财政、政治和后勤挑战。然而,考虑到船只类型的多样性、不同级别的政府支持、不断适应的海盗机构以及成本和资源的压力,防御极具挑战性。事实上,尽管有很多应对海盗的指导方针,但袭击仍有增无减,船只必须自卫。为了补充这些指导意见并提出船舶防御的优先事项,本文采用模糊层次分析法(FAHP)和深入访谈来确定打击海盗攻击的关键战略标准。问卷调查来自14家航运运营商和7位学者。随后,采访了经验丰富的政府官员(n=3)和航运运营商(n=3),以提供更多的深度和视角。结果显示,关键标准是国际公约和政策,其次是危险水域的防御战略,以及船只的硬件和软件。关于实施,建议航运公司对所采取的任何措施拥有所有权,并概述了他们如何做到这一点。此外,还概述了对航运公司、政府、国际机构和研究人员的管理影响。
{"title":"Piracy defense strategies for shipping companies and ships: A mixed empirical approach","authors":"Po-Hsing Tseng ,&nbsp;Zhao-Chao Her ,&nbsp;Nick Pilcher","doi":"10.1016/j.martra.2021.100020","DOIUrl":"https://doi.org/10.1016/j.martra.2021.100020","url":null,"abstract":"<div><p>Piracy attacks constitute a serious threat against which ships must be ready to defend themselves, particularly given the financial, political and logistical challenges involved in ensuring internationally coordinated protection. Yet, defense is highly challenging given the range of ship types, differing levels of government support, a constantly adapting pirate body, and pressures on costs and resources. Indeed, despite much guidance to deal with piracy, attacks continue unabated, and ships must defend themselves. To complement such guidance and suggest priorities for ship defense, this paper adopts a Fuzzy Analytic Hierarchy Process (FAHP) and in-depth interviews to identify key strategic criteria against piracy attacks. Questionnaire responses were from 14 shipping operators and 7 academics. Subsequently, highly experienced government officials (n=3) and shipping operators (n=3) were interviewed to provide additional depth and perspectives. Results show key criteria are international conventions and policy, followed by defense strategies in perilous water areas, and ship's hardware and software. Regarding implementation, it is suggested shipping companies take ownership of any measures introduced, and outlined how they can do so. Also, managerial implications for shipping companies, governments, international bodies and researchers are outlined.</p></div>","PeriodicalId":100885,"journal":{"name":"Maritime Transport Research","volume":"2 ","pages":"Article 100020"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.martra.2021.100020","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72122397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Predicting vessel speed in the Arctic without knowing ice conditions using AIS data and decision trees 使用AIS数据和决策树在不了解冰况的情况下预测北极的船只速度
Q2 TRANSPORTATION Pub Date : 2021-01-01 DOI: 10.1016/j.martra.2021.100024
Prithvi S Rao , Ekaterina Kim , Bjørnar Brende Smestad , Bjørn Egil Asbjørnslett , Anirban Bhattacharyya

The vessel speed is one of the important parameters that govern safety, emergency, and transport planning in the Arctic. While previous studies have traditionally relied on physics-based simulations to predict vessel's speed in ice-covered waters, most have not fully explored data-driven approaches and powerful supervised machine learning tools to aid speed prediction. This study offers a perspective of applying supervised machine learning models to predict MV SOG using historical Automatic Identification System (AIS) data and without explicit knowledge of local ice conditions. This paper presents a case-study from the region of the Eastern Barents Sea and the Southern Kara Sea. We first analyzed the vessel traffic situation for the years 2017 and 2018, and then used this knowledge to build statistical models to predict vessel speeds. Finally, we evaluated the models’ performance on a test dataset from January 2019. Performance of three models (Random Forest, XGBoost, and LightGBM) have been tested with a variety of date-time handling techniques, and data input mode being permuted to arrive at the most optimal model. The results demonstrate the ability of the models to predict the vessel's speed based on its geographical location, time of the year and other engineered features such as daylight information and route. With the proposed approach we were able to achieve mean absolute error 3.5 knots in average on a test dataset without explicit knowledge of local ice conditions around the vessel, with the majority of the errors being in the Kara Strait region and the Sabetta Channel.

船只速度是控制北极安全、应急和运输计划的重要参数之一。虽然以前的研究传统上依靠基于物理的模拟来预测船只在冰封水域中的速度,但大多数研究都没有充分探索数据驱动的方法和强大的监督机器学习工具来帮助速度预测。这项研究提供了一个应用监督机器学习模型预测MV SOG的视角,该模型使用历史自动识别系统(AIS)数据,而不需要明确了解当地结冰情况。本文介绍了巴伦支海东部和卡拉海南部地区的一个案例研究。我们首先分析了2017年和2018年的船舶交通状况,然后利用这些知识建立统计模型来预测船舶速度。最后,我们在2019年1月的测试数据集上评估了模型的性能。三个模型(随机森林、XGBoost和LightGBM)的性能已经用各种日期-时间处理技术进行了测试,并对数据输入模式进行了排列,以获得最优化的模型。结果表明,模型能够根据船只的地理位置、一年中的时间和其他工程特征(如日光信息和路线)预测船只的速度。使用所提出的方法,我们能够在测试数据集上实现平均3.5节的平均绝对误差,而无需明确了解船只周围的当地结冰情况,其中大多数误差发生在卡拉海峡地区和萨贝塔海峡。
{"title":"Predicting vessel speed in the Arctic without knowing ice conditions using AIS data and decision trees","authors":"Prithvi S Rao ,&nbsp;Ekaterina Kim ,&nbsp;Bjørnar Brende Smestad ,&nbsp;Bjørn Egil Asbjørnslett ,&nbsp;Anirban Bhattacharyya","doi":"10.1016/j.martra.2021.100024","DOIUrl":"https://doi.org/10.1016/j.martra.2021.100024","url":null,"abstract":"<div><p>The vessel speed is one of the important parameters that govern safety, emergency, and transport planning in the Arctic. While previous studies have traditionally relied on physics-based simulations to predict vessel's speed in ice-covered waters, most have not fully explored data-driven approaches and powerful supervised machine learning tools to aid speed prediction. This study offers a perspective of applying supervised machine learning models to predict MV SOG using historical Automatic Identification System (AIS) data and <em>without</em> explicit knowledge of local ice conditions. This paper presents a case-study from the region of the Eastern Barents Sea and the Southern Kara Sea. We first analyzed the vessel traffic situation for the years 2017 and 2018, and then used this knowledge to build statistical models to predict vessel speeds. Finally, we evaluated the models’ performance on a test dataset from January 2019. Performance of three models (Random Forest, XGBoost, and LightGBM) have been tested with a variety of date-time handling techniques, and data input mode being permuted to arrive at the most optimal model. The results demonstrate the ability of the models to predict the vessel's speed based on its geographical location, time of the year and other engineered features such as daylight information and route. With the proposed approach we were able to achieve mean absolute error 3.5 knots in average on a test dataset without explicit knowledge of local ice conditions around the vessel, with the majority of the errors being in the Kara Strait region and the Sabetta Channel.</p></div>","PeriodicalId":100885,"journal":{"name":"Maritime Transport Research","volume":"2 ","pages":"Article 100024"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.martra.2021.100024","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72122408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Support of the speed decision in liner operation by evaluating the trade-off between bunker fuel consumption and reliability 通过评估舱内燃料消耗和可靠性之间的权衡来支持班轮运行中的速度决策
Q2 TRANSPORTATION Pub Date : 2021-01-01 DOI: 10.1016/j.martra.2021.100009
A. Graf von Westarp, C. Brabänder

In liner container shipping, the optimization of bunker fuel costs and reliability can theoretically be achieved by steaming the distance in the available time at average, constant speed. However, in reality bunker fuel costs and reliability are mutually contradictory objectives. Due to incidents (e.g. technical problems on board of vessels, bad weather conditions, piracy) speed ups are necessary to arrive on schedule or at least to mitigate the delay. In this paper, a new approach to liner speed management is proposed. In order to manage the trade-off between bunker fuel consumption and reliability of services, a preventive buffer structure is built up to secure the schedule against delays. However, any analytical calculation of the structure and its effects can only be achieved with disproportionate effort. Therefore, a “discrete event simulation” is applied. Although a heuristic attempt does not provide the exact solution, reasonable and wide-ranged solutions are offered. Different decision alternatives are outlined, structured and tested to find appropriate speed profiles. For the evaluation of speed profiles three measures of reliability and deviation (α-reliability: ratio of punctual vessels [in%], β-deviation: average positive deviation from the schedule [in hours], γ-deviation: average negative deviation [in hours]) and costs are illuminated.

在班轮集装箱运输中,理论上可以通过以平均、恒定的速度在可用时间内蒸离距离来实现船用燃料成本和可靠性的优化。然而,在现实中,燃料成本和可靠性是相互矛盾的目标。由于事故(例如船上的技术问题、恶劣的天气条件、海盗行为),必须加快速度才能如期到达或至少缓解延误。本文提出了一种新的班轮速度管理方法。为了管理燃料消耗和服务可靠性之间的权衡,建立了一个预防性缓冲结构,以确保时间表不会延误。然而,结构及其效果的任何分析计算都只能通过不成比例的努力来实现。因此,应用了“离散事件模拟”。尽管启发式尝试不能提供确切的解决方案,但提供了合理和广泛的解决方案。对不同的决策备选方案进行了概述、结构化和测试,以找到合适的速度曲线。为了评估速度剖面,阐明了可靠性和偏差的三种衡量标准(α-可靠性:准时船只的比率[以%计],β-偏差:与时间表的平均正偏差[以小时计],γ-偏差:平均负偏差[以时间计])和成本。
{"title":"Support of the speed decision in liner operation by evaluating the trade-off between bunker fuel consumption and reliability","authors":"A. Graf von Westarp,&nbsp;C. Brabänder","doi":"10.1016/j.martra.2021.100009","DOIUrl":"https://doi.org/10.1016/j.martra.2021.100009","url":null,"abstract":"<div><p>In liner container shipping, the optimization of bunker fuel costs and reliability can theoretically be achieved by steaming the distance in the available time at average, constant speed. However, in reality bunker fuel costs and reliability are mutually contradictory objectives. Due to incidents (e.g. technical problems on board of vessels, bad weather conditions, piracy) speed ups are necessary to arrive on schedule or at least to mitigate the delay. In this paper, a new approach to liner speed management is proposed. In order to manage the trade-off between bunker fuel consumption and reliability of services, a preventive buffer structure is built up to secure the schedule against delays. However, any analytical calculation of the structure and its effects can only be achieved with disproportionate effort. Therefore, a “discrete event simulation” is applied. Although a heuristic attempt does not provide the exact solution, reasonable and wide-ranged solutions are offered. Different decision alternatives are outlined, structured and tested to find appropriate speed profiles. For the evaluation of speed profiles three measures of reliability and deviation (<span><math><mi>α</mi></math></span>-reliability: ratio of punctual vessels [in%], <span><math><mi>β</mi></math></span>-deviation: average positive deviation from the schedule [in hours], <span><math><mi>γ</mi></math></span>-deviation: average negative deviation [in hours]) and costs are illuminated.</p></div>","PeriodicalId":100885,"journal":{"name":"Maritime Transport Research","volume":"2 ","pages":"Article 100009"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.martra.2021.100009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72122410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Economic and environmental impacts of alternative routing scenarios in the context of China's belt and road initiative 中国“一带一路”倡议倡议背景下替代路线方案的经济和环境影响
Q2 TRANSPORTATION Pub Date : 2021-01-01 DOI: 10.1016/j.martra.2021.100030
Haider J , Sanchez Rodrigues V , Pettit SJ , Harris I , Beresford AKC , Shi Y

This paper provides an empirical study of combined land - ocean transport within the Belt and Road Initiative (BRI). The analysis is based on primary data in each transport activity taking place between Yiwu and Madrid. Five scenarios are modelled using alternative transport routes. Optimal choices for multi-modal transport combinations with regards to both economic and environmental perspectives are identified. By investigating freight transport from Yiwu to Madrid using the Yixinou line, the results suggest that the BRI has significant potential to reduce the cost of freight transport from China to Europe.

本文对“一带一路”倡议倡议下的陆海联运进行了实证研究。该分析基于义乌和马德里之间每一次运输活动的原始数据。使用替代运输路线对五种情景进行建模。从经济和环境角度确定了多式联运组合的最佳选择。通过对义新线义乌至马德里货运的调查,结果表明,“一带一路”倡议在降低中国至欧洲货运成本方面具有巨大潜力。
{"title":"Economic and environmental impacts of alternative routing scenarios in the context of China's belt and road initiative","authors":"Haider J ,&nbsp;Sanchez Rodrigues V ,&nbsp;Pettit SJ ,&nbsp;Harris I ,&nbsp;Beresford AKC ,&nbsp;Shi Y","doi":"10.1016/j.martra.2021.100030","DOIUrl":"https://doi.org/10.1016/j.martra.2021.100030","url":null,"abstract":"<div><p>This paper provides an empirical study of combined land - ocean transport within the Belt and Road Initiative (BRI). The analysis is based on primary data in each transport activity taking place between Yiwu and Madrid. Five scenarios are modelled using alternative transport routes. Optimal choices for multi-modal transport combinations with regards to both economic and environmental perspectives are identified. By investigating freight transport from Yiwu to Madrid using the Yixinou line, the results suggest that the BRI has significant potential to reduce the cost of freight transport from China to Europe.</p></div>","PeriodicalId":100885,"journal":{"name":"Maritime Transport Research","volume":"2 ","pages":"Article 100030"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.martra.2021.100030","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72123971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Reflecting economic activity through ports: The case of Australia 通过港口反映经济活动:以澳大利亚为例
Q2 TRANSPORTATION Pub Date : 2021-01-01 DOI: 10.1016/j.martra.2021.100021
Jason Angelopoulos , Thomas Vitsounis , Persa Paflioti , Constantinos Chlomoudis , Ioannis Tsmourgelis

With approximately 85% of global trade moved by sea, the relationship between ports and the economy has become symbiotic. Identifying and tracking this relationship is sought by both port economics and port forecasting literature. Tackling both challenges -i.e., the ports-economy relationship and forecasting- at once, can only be pursued by data-driven factor models, through their ability to reduce the dimensionality of large cross sections of time series. We find fertile ground in applying, for the first time, a factor modeling approach to the Australian port sector by utilizing a disaggregate dataset of 2765 series representing national and regional port activity for 20 years. Through our model, we establish a quantifiable connection between ports and the economy and demonstrate their capacity in reflecting economic activity. We assess a rich lead-lag structure in our dataset and trace its cyclical properties. Using the same method, we compare the Australian and U.S port sectors, revealing insights on their structural differences. Finally, utilizing our model as a forecasting device, we report favorable short and mid-term forecasting performance against benchmarks.

随着全球约85%的贸易通过海运进行,港口与经济之间的关系已变得共生。港口经济学和港口预测文献都在寻求识别和跟踪这种关系。同时应对这两个挑战,即港口经济关系和预测,只能通过数据驱动的因素模型来实现,因为它们能够降低时间序列大截面的维度。我们发现,通过利用代表20年来国家和地区港口活动的2765个系列的分解数据集,首次将因素建模方法应用于澳大利亚港口部门是一片沃土。通过我们的模型,我们在港口和经济之间建立了可量化的联系,并展示了它们反映经济活动的能力。我们在数据集中评估了一个丰富的超前-滞后结构,并追踪了其周期性特性。使用相同的方法,我们比较了澳大利亚和美国的港口部门,揭示了它们的结构差异。最后,利用我们的模型作为预测设备,我们报告了相对于基准的有利的短期和中期预测性能。
{"title":"Reflecting economic activity through ports: The case of Australia","authors":"Jason Angelopoulos ,&nbsp;Thomas Vitsounis ,&nbsp;Persa Paflioti ,&nbsp;Constantinos Chlomoudis ,&nbsp;Ioannis Tsmourgelis","doi":"10.1016/j.martra.2021.100021","DOIUrl":"https://doi.org/10.1016/j.martra.2021.100021","url":null,"abstract":"<div><p>With approximately 85% of global trade moved by sea, the relationship between ports and the economy has become symbiotic. Identifying and tracking this relationship is sought by both port economics and port forecasting literature. Tackling both challenges -i.e., the ports-economy relationship and forecasting- at once, can only be pursued by data-driven factor models, through their ability to reduce the dimensionality of large cross sections of time series. We find fertile ground in applying, for the first time, a factor modeling approach to the Australian port sector by utilizing a disaggregate dataset of 2765 series representing national and regional port activity for 20 years. Through our model, we establish a quantifiable connection between ports and the economy and demonstrate their capacity in reflecting economic activity. We assess a rich lead-lag structure in our dataset and trace its cyclical properties. Using the same method, we compare the Australian and U.S port sectors, revealing insights on their structural differences. Finally, utilizing our model as a forecasting device, we report favorable short and mid-term forecasting performance against benchmarks.</p></div>","PeriodicalId":100885,"journal":{"name":"Maritime Transport Research","volume":"2 ","pages":"Article 100021"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.martra.2021.100021","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72122399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Did the Panama Canal expansion benefit small U.S. ports? 巴拿马运河的扩建对美国的小型港口有利吗?
Q2 TRANSPORTATION Pub Date : 2021-01-01 DOI: 10.1016/j.martra.2021.100013
Jorge Medina , Jong-Ho Kim , EunSu Lee

This study uses public data on U.S. container ports from 2000 to 2017 and a fixed effect model to investigate the indirect effect that the expansion of the Panama Canal may have had on the import volumes of relatively small ports in the Gulf and Atlantic coasts. The larger number of megaships going through the canal after its expansion increases the number of incoming containers for relatively large ports that are able to service these ships. This increase in traffic for large ports could indirectly affect the number of incoming containers for smaller ports depending on their proximity to these larger ports. Our results indicate that small ports close to a large port benefitted from the canal expansion, but only when they are very close. Examining broader definitions of proximity revealed that small ports that are much farther from a large port also benefitted from the expansion.

这项研究使用了2000年至2017年美国集装箱港口的公开数据和固定效应模型来调查巴拿马运河的扩建可能对海湾和大西洋沿岸相对较小港口的进口量产生的间接影响。运河扩建后,通过运河的巨型船只数量增加,增加了能够为这些船只提供服务的相对较大港口的进港集装箱数量。大型港口交通量的增加可能会间接影响较小港口的进港集装箱数量,这取决于它们与这些较大港口的距离。我们的研究结果表明,靠近大港口的小港口受益于运河扩建,但只有当它们非常靠近时。研究更广泛的邻近度定义发现,距离大港口远得多的小港口也从扩张中受益。
{"title":"Did the Panama Canal expansion benefit small U.S. ports?","authors":"Jorge Medina ,&nbsp;Jong-Ho Kim ,&nbsp;EunSu Lee","doi":"10.1016/j.martra.2021.100013","DOIUrl":"https://doi.org/10.1016/j.martra.2021.100013","url":null,"abstract":"<div><p>This study uses public data on U.S. container ports from 2000 to 2017 and a fixed effect model to investigate the indirect effect that the expansion of the Panama Canal may have had on the import volumes of relatively small ports in the Gulf and Atlantic coasts. The larger number of megaships going through the canal after its expansion increases the number of incoming containers for relatively large ports that are able to service these ships. This increase in traffic for large ports could indirectly affect the number of incoming containers for smaller ports depending on their proximity to these larger ports. Our results indicate that small ports close to a large port benefitted from the canal expansion, but only when they are very close. Examining broader definitions of proximity revealed that small ports that are much farther from a large port also benefitted from the expansion.</p></div>","PeriodicalId":100885,"journal":{"name":"Maritime Transport Research","volume":"2 ","pages":"Article 100013"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.martra.2021.100013","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72107868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Concentration analysis of container terminals in India 印度集装箱码头浓度分析
Q2 TRANSPORTATION Pub Date : 2021-01-01 DOI: 10.1016/j.martra.2021.100037
K. Chandrasekhar Iyer , V.P.S. Nihar Nanyam
{"title":"Concentration analysis of container terminals in India","authors":"K. Chandrasekhar Iyer ,&nbsp;V.P.S. Nihar Nanyam","doi":"10.1016/j.martra.2021.100037","DOIUrl":"https://doi.org/10.1016/j.martra.2021.100037","url":null,"abstract":"","PeriodicalId":100885,"journal":{"name":"Maritime Transport Research","volume":"2 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.martra.2021.100037","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72122402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
A comparative evaluation of market based measures for shipping decarbonization 基于市场的航运脱碳措施的比较评价
Q2 TRANSPORTATION Pub Date : 2021-01-01 DOI: 10.1016/j.martra.2021.100019
Harilaos N. Psaraftis, Thalis Zis, Sotiria Lagouvardou

The purpose of this paper is to provide an overview and discussion of potential Market Based Measures (MBMs) under the Initial IMO Strategy for the reduction of greenhouse gas (GHG) emissions from ships. In this context, some related developments are also seen as directly relevant, mainly in the context of the possible inclusion of shipping into the EU Emissions Trading System (ETS). A comparative evaluation of maritime MBMs is made using the following criteria: GHG reduction effectiveness, compatibility with existing legal framework, potential implementation timeline, potential impacts on States, administrative burden, practical feasibility, avoidance of split incentives between ship-owner and charterer, and commercial impacts. The paper breaks down potential MBMs into the following classes: Bunker levy/carbon levy MBMs, ETS (global and/or EU ETS) MBMs and other MBM proposals.

本文的目的是概述和讨论海事组织减少船舶温室气体排放的初步战略下潜在的基于市场的措施。在这种情况下,一些相关的发展也被视为直接相关,主要是在可能将航运纳入欧盟排放交易系统的背景下。使用以下标准对海事MBM进行了比较评估:温室气体减排的有效性、与现有法律框架的兼容性、潜在的实施时间表、对各国的潜在影响、行政负担、实际可行性、避免船东和承租人之间的分包激励以及商业影响。该文件将潜在的MBM分为以下几类:地堡税/碳税MBM、ETS(全球和/或欧盟ETS)MBM和其他MBM提案。
{"title":"A comparative evaluation of market based measures for shipping decarbonization","authors":"Harilaos N. Psaraftis,&nbsp;Thalis Zis,&nbsp;Sotiria Lagouvardou","doi":"10.1016/j.martra.2021.100019","DOIUrl":"https://doi.org/10.1016/j.martra.2021.100019","url":null,"abstract":"<div><p>The purpose of this paper is to provide an overview and discussion of potential Market Based Measures (MBMs) under the Initial IMO Strategy for the reduction of greenhouse gas (GHG) emissions from ships. In this context, some related developments are also seen as directly relevant, mainly in the context of the possible inclusion of shipping into the EU Emissions Trading System (ETS). A comparative evaluation of maritime MBMs is made using the following criteria: GHG reduction effectiveness, compatibility with existing legal framework, potential implementation timeline, potential impacts on States, administrative burden, practical feasibility, avoidance of split incentives between ship-owner and charterer, and commercial impacts. The paper breaks down potential MBMs into the following classes: Bunker levy/carbon levy MBMs, ETS (global and/or EU ETS) MBMs and other MBM proposals.</p></div>","PeriodicalId":100885,"journal":{"name":"Maritime Transport Research","volume":"2 ","pages":"Article 100019"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.martra.2021.100019","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72123976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 44
An updatable and comprehensive global cargo maritime network and strategic seaborne cargo routing model for global containerized and bulk vessel flow estimation 用于全球集装箱和散货船流量估计的可更新和全面的全球货运海运网络和战略海运货物路线模型
Q2 TRANSPORTATION Pub Date : 2021-01-01 DOI: 10.1016/j.martra.2021.100038
Wenjie Li , Ralph Pundt , Elise Miller-Hooks
{"title":"An updatable and comprehensive global cargo maritime network and strategic seaborne cargo routing model for global containerized and bulk vessel flow estimation","authors":"Wenjie Li ,&nbsp;Ralph Pundt ,&nbsp;Elise Miller-Hooks","doi":"10.1016/j.martra.2021.100038","DOIUrl":"https://doi.org/10.1016/j.martra.2021.100038","url":null,"abstract":"","PeriodicalId":100885,"journal":{"name":"Maritime Transport Research","volume":"2 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666822X21000290/pdfft?md5=2a6f880f183307880bfdc4a9960d9d54&pid=1-s2.0-S2666822X21000290-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72123977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
期刊
Maritime Transport Research
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1