Maritime Transport Research最新文献_第4页

A high-fidelity approach to modeling weather-dependent fuel consumption on ship routes with speed optimization 基于航速优化的航路油耗高保真度建模方法

Maritime Transport Research Pub Date : 2023-07-18 DOI: 10.1016/j.martra.2023.100096

Andreas Breivik Ormevik , Kjetil Fagerholt , Frank Meisel , Endre Sandvik

{"title":"A high-fidelity approach to modeling weather-dependent fuel consumption on ship routes with speed optimization","authors":"Andreas Breivik Ormevik , Kjetil Fagerholt , Frank Meisel , Endre Sandvik","doi":"10.1016/j.martra.2023.100096","DOIUrl":"https://doi.org/10.1016/j.martra.2023.100096","url":null,"abstract":"<div><p>In this paper, we present the scheduling problem on a given route where speed optimization under various weather conditions is to be performed. Different approaches for calculating fuel consumption for vessels are introduced with a discussion of how this might influence the speed optimization strategies on predetermined multi-stop routes in a short sea shipping service within offshore logistics. Due to both spatial and temporal changes in weather conditions, fuel consumption as a function of speed becomes time-dependent as a vessel performs its route in varying weather. In our novel approach, the weather impact on fuel consumption for the considered vessels is modeled with a higher level of detail than in previously conducted studies, including both wave direction and wave period as input together with the wave height. We test our approach for optimizing schedules on a large set of routes of different lengths and number of stops, as well as for a set of different weather samples based on historical observations. When comparing the new approach to current industry practice, the computational study reveals on average a 4.5% reduction in fuel consumption across the different routes and weather scenarios. The magnitude of the reduction potential increases for worsening weather conditions. Furthermore, it is demonstrated how the approach commonly used for modeling weather impacts in the literature tends to greatly miscalculate the true cost of performing a voyage in realistic weather conditions. Finally, we discuss how the model fidelity is likely to affect the outcome of the routing decisions at a higher planning level, representing a potential for even further reductions of fuel consumption in various weather conditions.</p></div>","PeriodicalId":100885,"journal":{"name":"Maritime Transport Research","volume":"5 ","pages":"Article 100096"},"PeriodicalIF":0.0,"publicationDate":"2023-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49878815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seasonality of the global cruise industry 全球邮轮行业的季节性

Maritime Transport Research Pub Date : 2023-07-04 DOI: 10.1016/j.martra.2023.100094

Hirohito Ito , Shinya Hanaoka , Kashin Sugishita

{"title":"Seasonality of the global cruise industry","authors":"Hirohito Ito , Shinya Hanaoka , Kashin Sugishita","doi":"10.1016/j.martra.2023.100094","DOIUrl":"https://doi.org/10.1016/j.martra.2023.100094","url":null,"abstract":"<div><p>Seasonality is a unique characteristic of the cruise industry. Cruise lines move their ship deployment areas seasonally to meet tourism needs. Taking advantage of the climatic differences between the Northern and Southern Hemispheres could allow greater growth in the global cruise industry. This study aims to provide basic findings for governments and ports to consider ways to encourage growth by capitalizing on the seasonality of the global cruise industry. Automatic identification system data for all ocean-going cruise ships worldwide in 2019 were compiled and categorized into three travel groups (short, middle, and long) based on the latitudinal distance traveled. Differences between these three groups were analyzed in terms of deployment area/port, vessel size, and itinerary design. As a result, we found that the long travel group had the following characteristics. Cruise ships were deployed to Alaska and Northern Europe in summer and dispersed to the equator and Southern Hemisphere in winter. The vessel size was standard and neither too large nor too small. Specifically, long travel of cruise ships was limited by the maximum gross tonnage, length, and breadth of the ship, but there was no draught restriction. Although the number of nodes and edges, and the average degree comprising the itineraries were high, hub ports appeared only in the summer. Furthermore, despite the long distances traveled by season, the number of communities tended to be small, reflecting the design of their itineraries. In conclusion, the development of several ports in the Southern Hemisphere that can accommodate mega-sized cruise ships with standard draught, while considering overtourism, would allow cruise ships to take advantage of the seasonality and, thereby, grow the cruise industry.</p></div>","PeriodicalId":100885,"journal":{"name":"Maritime Transport Research","volume":"5 ","pages":"Article 100094"},"PeriodicalIF":0.0,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49878819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and application of a key performance indicator (KPI) framework for autonomous shipping in Europe 欧洲自主航运关键绩效指标(KPI)框架的设计与应用

Maritime Transport Research Pub Date : 2023-06-29 DOI: 10.1016/j.martra.2023.100095

Thalis P.V. Zis , Harilaos N. Psaraftis , Martina Reche-Vilanova

{"title":"Design and application of a key performance indicator (KPI) framework for autonomous shipping in Europe","authors":"Thalis P.V. Zis , Harilaos N. Psaraftis , Martina Reche-Vilanova","doi":"10.1016/j.martra.2023.100095","DOIUrl":"https://doi.org/10.1016/j.martra.2023.100095","url":null,"abstract":"<div><p>The European Union (EU) transport policy recognizes the importance of the waterborne transport systems as key elements for sustainable growth in Europe. By 2030, 30% of total road freight over 300 km should shift to rail or waterborne transport, and more than 50% by 2050. Thus far, this ambition has failed but there have been several project initiatives within the EU to address these issues. In one of these projects, we consider a new waterborne transport system for Europe that is green, robust, flexible, more automated and autonomous, and able to connect both rural and urban terminals. The purpose of this paper is to describe work and preliminary results from this project. To that effect, and in order to assess any solutions contemplated, a comprehensive set of Key Performance Indicators (KPIs) has been defined, and three specific use cases within Europe are examined and evaluated according to these KPIs. KPIs represent the criteria under which the set of solutions developed are evaluated, and also compared to non-autonomous solutions. They are grouped under economic, environmental and social KPIs. KPIs have been selected after a consultation process involving project partners and external Advisory Group members. Links to EU transport and other regulatory action are also discussed.</p></div>","PeriodicalId":100885,"journal":{"name":"Maritime Transport Research","volume":"5 ","pages":"Article 100095"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49878818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Carbon dioxide mitigation from public procurement with environmental conditions: The case of short-sea shipping in Norway 有环境条件的公共采购减少二氧化碳排放:挪威短途海运的案例

Maritime Transport Research Pub Date : 2023-06-01 DOI: 10.1016/j.martra.2023.100085

Asbjørn Torvanger , Jostein Tvedt , Inger Beate Hovi

{"title":"Carbon dioxide mitigation from public procurement with environmental conditions: The case of short-sea shipping in Norway","authors":"Asbjørn Torvanger , Jostein Tvedt , Inger Beate Hovi","doi":"10.1016/j.martra.2023.100085","DOIUrl":"https://doi.org/10.1016/j.martra.2023.100085","url":null,"abstract":"<div><p>We investigate the potential for greenhouse gas (GHG) emission cuts for the Norwegian short-sea (domestic) maritime segments of express boats, offshore support vessels, and aquaculture support vessels in comparison to ferries in Norway. Public procurement conditional on climate-friendly operation is catalyzing a transition to battery-electric operation, where most ferries will be battery-electric or fueled by hydrogen by 2030. The comparison to ferries is performed with the help of a methodology inspired by the multi-attribute utility method, which contains 11 features related to technology, operation, and acceptance. This score is used to adjust the 70% CO<sub>2</sub> emission reduction achieved by ferries. Based on this methodology, the CO<sub>2</sub> emission reduction potential for express boats, offshore support vessels, and aquaculture support vessels is estimated to be 46%. Consequently, these short-sea shipping segments could reduce CO<sub>2</sub> emissions by 0.8 million tonnes from 2017 to 2030, which is equivalent to 1.5% of Norwegian emissions in 2017. Norway's experience indicates that there is a sizable potential for reducing CO<sub>2</sub> emissions for public procurement conditional on climate-friendly solutions for short-sea shipping in other shipping nations.</p></div>","PeriodicalId":100885,"journal":{"name":"Maritime Transport Research","volume":"4 ","pages":"Article 100085"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49881276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Self-labelling of tugboat operation using unsupervised machine learning and intensity indicator 使用无监督机器学习和强度指示器的拖船操作自标记

Maritime Transport Research Pub Date : 2023-06-01 DOI: 10.1016/j.martra.2023.100082

Januwar Hadi , Dimitrios Konovessis , Zhi Yung Tay

引用次数: 1

The strategy of the port development company; a framework based on the business ecosystems perspective and an application to the case of Port of Rotterdam 港口开发公司的战略;基于商业生态系统视角的框架及其在鹿特丹港案例中的应用

Maritime Transport Research Pub Date : 2023-06-01 DOI: 10.1016/j.martra.2023.100089

Peter W. de Langen

{"title":"The strategy of the port development company; a framework based on the business ecosystems perspective and an application to the case of Port of Rotterdam","authors":"Peter W. de Langen","doi":"10.1016/j.martra.2023.100089","DOIUrl":"https://doi.org/10.1016/j.martra.2023.100089","url":null,"abstract":"<div><p>This paper advances the conceptual understanding of strategies of port development companies (PDCs) through applying the business ecosystem perspective. This leads to a distinction between four stylized strategies for PDCs and associated types of services: minimalist (six services), integrator (six services) and ecosystem services (six services). An analysis of the services provided by a PDC reveals which strategy they follow. This approach is tested through a case study of Port of Rotterdam Authority (PoR for short) the state-owned PDC in charge of developing Rotterdam's port complex. This case study yields three important conclusions: first the relevance of the identified service types is confirmed, as PoR is or has been active in providing 15 of the 18 identified service types, more specifically all six ‘minimalist services’, all six ‘ecosystem services’ and three of the six ‘integrator services’. Second, PoR follows a ‘platform provider’ strategy. Third, the provision of ‘ecosystem services’ seems to become a more important part of PoRs activities. The number of provided ecosystem services has grown between 2006 and 2021 and investments in ecosystem services account for an increasing share of PoRs total investments. These results provide a basis for further research, amongst others to better understand factors that may influence the strategies of PDCs.</p></div>","PeriodicalId":100885,"journal":{"name":"Maritime Transport Research","volume":"4 ","pages":"Article 100089"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49881275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

SafeWay: Improving the safety of autonomous waypoint detection in maritime using transformer and interpolation SafeWay:利用变压器和插值提高海上自主航点检测的安全性

Maritime Transport Research Pub Date : 2023-06-01 DOI: 10.1016/j.martra.2023.100086

Dogan Altan , Dusica Marijan , Tetyana Kholodna

{"title":"SafeWay: Improving the safety of autonomous waypoint detection in maritime using transformer and interpolation","authors":"Dogan Altan , Dusica Marijan , Tetyana Kholodna","doi":"10.1016/j.martra.2023.100086","DOIUrl":"https://doi.org/10.1016/j.martra.2023.100086","url":null,"abstract":"<div><p>Detecting waypoints where vessels change their behavior (i.e., maneuvers, speed changes, etc.) is essential for optimizing vessel trajectories to increase the efficiency and safety of sailing. However, accurately detecting waypoints is challenging due to potential AIS data quality issues (i.e., missing or inaccurate messages). In this paper, we propose a five-step learning approach (SafeWay) to estimate waypoints on a given AIS trajectory. First, we interpolate trajectories to tackle AIS data quality issues. Then, we annotate historical trajectories by using an existing waypoint library that contains historical waypoints. As the historical waypoints are passage plans manually created by port operators considering sailing conditions at that time, they are not specific to other historical trajectories between the same ports. We, therefore, use a similarity metric to determine overlapping segments of historical trajectories with the historical waypoints from the waypoint library. Then, we build a transformer model to capture vessel movement patterns based on speed- and location-related features. We do not process location features directly to avoid learning location-specific context, but take into account tailored delta features. We test our approach on a real-world AIS dataset collected from the Norwegian Sea between Å lesund and Måløy and show its effectiveness in terms of a harmonic mean of purity and coverage, mean absolute error and detection rate on the task of detecting trajectory waypoints compared to a state-of-the-art approach. We also show the effectiveness of the trained model on the trajectories obtained from two other regions, the North Sea (London and Rotterdam) and the North Atlantic Ocean (Setubal and Gibraltar), on which the model has not been trained. The experiments indicate that our interpolation-enabled transformer design provides improvements in the safety of the estimated waypoints.</p></div>","PeriodicalId":100885,"journal":{"name":"Maritime Transport Research","volume":"4 ","pages":"Article 100086"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49881283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Cooperation between vessel service providers in ports: An impact analysis using simulation for the Port of Rotterdam 港口船舶服务供应商之间的合作:鹿特丹港模拟影响分析

Maritime Transport Research Pub Date : 2023-06-01 DOI: 10.1016/j.martra.2023.100083

Shahrzad Nikghadam, Ratnaji Vanga, Jafar Rezaei, Lori Tavasszy

引用次数: 2

Ensuring circular strategy implementation: The development of circular economy indicators for ports 确保循环战略的实施:港口循环经济指标的制定

Maritime Transport Research Pub Date : 2023-06-01 DOI: 10.1016/j.martra.2023.100087

Lynn Faut , Fanny Soyeur , Elvira Haezendonck , Michaël Dooms , Peter W. de Langen

{"title":"Ensuring circular strategy implementation: The development of circular economy indicators for ports","authors":"Lynn Faut , Fanny Soyeur , Elvira Haezendonck , Michaël Dooms , Peter W. de Langen","doi":"10.1016/j.martra.2023.100087","DOIUrl":"https://doi.org/10.1016/j.martra.2023.100087","url":null,"abstract":"<div><p>Port clusters are expected to play a significant role in the transition towards a circular economy, both at the level of facilitating regional and global transport within circular production chains, as well as hosting circular activities in port areas. There is strong evidence that significant investments in the circular economy (CE) are being made in port areas, albeit without much knowledge on their impacts. To ensure an efficient use of port resources in view of this transition, these impacts should be adequately monitored. Research on circular economy indicators for ports is still in an exploratory stage, characterized by an absence of in-depth research on the development of port-related circular economy indicators. This paper focuses on the development of a comprehensive set of relevant and feasible CE indicators, which aim to support port managing bodies (PMBs) as well as port stakeholders to monitor the CE transition taking place. Through multimethod qualitative research, including content analysis, focus groups, a gap analysis and a qualitative survey, an actionable list of CE 12 indicators for ports was developed. Seven of which are highly feasible and five of which have medium feasibility in terms of stakeholder relevance and ease of implementation. Findings related to (1) the overall limited CE ambition levels of PMBs and (2) the difference in the values of some indicators for different port typologies are also discussed. The value of this study for practitioners lies in providing them with an actionable set of KPIs which can support their efforts and communication related to their CE transition.</p></div>","PeriodicalId":100885,"journal":{"name":"Maritime Transport Research","volume":"4 ","pages":"Article 100087"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49881273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Accelerating the circular economy transition process for gateway ports: The case of the Port of Zeebrugge 加快门户港口循环经济转型进程:以泽布吕赫港为例

Maritime Transport Research Pub Date : 2023-06-01 DOI: 10.1016/j.martra.2023.100088

Fiona Maureen Courtens , Elvira Haezendonck , Michaël Dooms , Alain Verbeke

{"title":"Accelerating the circular economy transition process for gateway ports: The case of the Port of Zeebrugge","authors":"Fiona Maureen Courtens , Elvira Haezendonck , Michaël Dooms , Alain Verbeke","doi":"10.1016/j.martra.2023.100088","DOIUrl":"https://doi.org/10.1016/j.martra.2023.100088","url":null,"abstract":"<div><p>The transition towards a circular economy (CE) has grown in importance during the last decade, and ports are now being viewed as potentially important contributors to this move towards a more sustainable economy. However, several research questions about adopting CE projects in ports remain unanswered. The importance of clustering and secondary resources for circular loops indicates the importance of proximity to either industrial clusters or urban zones. However, gateway ports (GWP), contrary to industrial ports, metropolitan (or urban) ports and diversified port hubs (which combine an industrial function with the proximity to a large urban area), do not benefit from the vicinity of these secondary resources. Nevertheless, even without access to such secondary resources, any port and port managing body (PMB) needs to prepare for the changing competitive landscape, with new cargo flows, material streams and related businesses linked to the circular economy transition of value chains. Here, GWPs, thanks to their nodal position, still have potential to function as platforms for circular transition initiatives arising in other industries. In the present study, we conceptualize a CE transition process, consisting of six steps, especially relevant to GWPs. We then explore the case of the Port of Zeebrugge (Belgium), shortly before its merger with the Port of Antwerp. We propose that GWPs should rely mainly on their potential to attract ‘new value streams’ as the main driver of their CE strategy. Here, top-down initiatives emanating from internal stakeholders, and likely even external ones, appear to provide pathways to CE success.</p></div>","PeriodicalId":100885,"journal":{"name":"Maritime Transport Research","volume":"4 ","pages":"Article 100088"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49881274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0