Maritime Transport Research最新文献_第10页

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

Maritime Transport Research 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

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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

Maritime Transport Research Pub Date : 2021-01-01 DOI: 10.1016/j.martra.2021.100009

A. Graf von Westarp, C. Brabänder

{"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, 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

Maritime Transport Research 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

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

Maritime Transport Research Pub Date : 2021-01-01 DOI: 10.1016/j.martra.2021.100021

Jason Angelopoulos , Thomas Vitsounis , Persa Paflioti , Constantinos Chlomoudis , Ioannis Tsmourgelis

{"title":"Reflecting economic activity through ports: The case of Australia","authors":"Jason Angelopoulos , Thomas Vitsounis , Persa Paflioti , Constantinos Chlomoudis , 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？

Maritime Transport Research Pub Date : 2021-01-01 DOI: 10.1016/j.martra.2021.100013

Jorge Medina , Jong-Ho Kim , EunSu Lee

引用次数: 4

Concentration analysis of container terminals in India 印度集装箱码头浓度分析

Maritime Transport Research Pub Date : 2021-01-01 DOI: 10.1016/j.martra.2021.100037

K. Chandrasekhar Iyer , V.P.S. Nihar Nanyam

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

Maritime Transport Research Pub Date : 2021-01-01 DOI: 10.1016/j.martra.2021.100019

Harilaos N. Psaraftis, Thalis Zis, Sotiria Lagouvardou

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

Maritime Transport Research Pub Date : 2021-01-01 DOI: 10.1016/j.martra.2021.100038

Wenjie Li , Ralph Pundt , Elise Miller-Hooks

引用次数: 7

Empirical analysis of brain drain of Chinese seafarers: Reasons and countermeasures 中国海员人才流失的实证分析：原因及对策

Maritime Transport Research Pub Date : 2021-01-01 DOI: 10.1016/j.martra.2021.100035

Jia-qi Liu , Ying-en Ge , Yan Zhang

引用次数: 1

Step-wise stowage planning of roll-on roll-off ships transporting dangerous goods 危险货物滚装船分段配载规划

Maritime Transport Research Pub Date : 2021-01-01 DOI: 10.1016/j.martra.2021.100029

Beizhen Jia , Kjetil Fagerholt

引用次数: 8