: In recent years, 'weather routing' ha s been attracting increasing attention as a means of reducing costs and environmental impact. In order to achieve high- quality weather routing, it is important to accurately predict the ship's speed through ground during a voyage from ship control variables and predicted data on weather and sea conditions. B ecause sea condition forecasts are difficult to produce in-house, external data is often used, but there is a problem that the accuracy of sea condition forecasts is not sufficient and it is impossible to improve the accuracy of the forecasts because the d ata is external. In this study, we propose a machine learning method for predicting speed through ground by considering the actual values of the previous voyage’s drift speed for ships that regularly ope rate on the same route, such as ferries. Experimental results showed that this method improves the prediction performance of ship’s speed through ground.
{"title":"Prediction of Ship's Speed Through Ground Using the Previous Voyage's Drift Speed","authors":"Daiki Yamane, T. Kano","doi":"10.12716/1001.17.01.13","DOIUrl":"https://doi.org/10.12716/1001.17.01.13","url":null,"abstract":": In recent years, 'weather routing' ha s been attracting increasing attention as a means of reducing costs and environmental impact. In order to achieve high- quality weather routing, it is important to accurately predict the ship's speed through ground during a voyage from ship control variables and predicted data on weather and sea conditions. B ecause sea condition forecasts are difficult to produce in-house, external data is often used, but there is a problem that the accuracy of sea condition forecasts is not sufficient and it is impossible to improve the accuracy of the forecasts because the d ata is external. In this study, we propose a machine learning method for predicting speed through ground by considering the actual values of the previous voyage’s drift speed for ships that regularly ope rate on the same route, such as ferries. Experimental results showed that this method improves the prediction performance of ship’s speed through ground.","PeriodicalId":46009,"journal":{"name":"TransNav-International Journal on Marine Navigation and Safety of Sea Transportation","volume":"87 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81191741","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}
: Graphical tools have been proposed to facilitate the selection, evaluation, and correction of anti ‐ collision actions in situations with moving and stationary obstacles, assuming that such situations are
图形工具已被提出，以方便在有移动和静止障碍物的情况下的防碰撞动作的选择、评估和纠正，假设这种情况是
{"title":"Graphical Tools to Facilitate the Selection of Manoeuvres to Avoid Collision","authors":"L. Vagushchenko, A. Vagushchenko","doi":"10.12716/1001.17.03.14","DOIUrl":"https://doi.org/10.12716/1001.17.03.14","url":null,"abstract":": Graphical tools have been proposed to facilitate the selection, evaluation, and correction of anti ‐ collision actions in situations with moving and stationary obstacles, assuming that such situations are","PeriodicalId":46009,"journal":{"name":"TransNav-International Journal on Marine Navigation and Safety of Sea Transportation","volume":"53 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81409564","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}
: This article focuses on issues related to risk assessment when maneuvering a loaded bulk carrier in close proximity to a vessel performing underwater work at the time. It is based on a detailed analysis of an incident that took place in the Gulf of Gdansk. The write -up explains real turns of events, conditions and factors that contributed to the incident, but also its consequences are explained. Some other aspects of this article focuses on, are the processes of examination of the direct causes of the incident and identification not compliance with regulations, requirements, or procedures that help to find out the human, technical, and organizational errors. The authors of this text indicate the safety guards that have failed, give the reasons for their fail ure and, where it was possible, point out the safety guards that should or must be established . The article does not take into account theoretical models for the described accidents, but only practical aspects, human errors and applicable local and interna tional laws and regulations. Particular attention was devoted to the analysis of human errors made by officers maneuvering the surface vessel in the close vicinity of divers perfo rming underwater works.
{"title":"Risk Assessment While Maneuvering a Loaded Bulk Carrier in Close Proximity to a Vessel Performing Underwater Work","authors":"G. Rutkowski, Angelika Bozek","doi":"10.12716/1001.17.01.07","DOIUrl":"https://doi.org/10.12716/1001.17.01.07","url":null,"abstract":": This article focuses on issues related to risk assessment when maneuvering a loaded bulk carrier in close proximity to a vessel performing underwater work at the time. It is based on a detailed analysis of an incident that took place in the Gulf of Gdansk. The write -up explains real turns of events, conditions and factors that contributed to the incident, but also its consequences are explained. Some other aspects of this article focuses on, are the processes of examination of the direct causes of the incident and identification not compliance with regulations, requirements, or procedures that help to find out the human, technical, and organizational errors. The authors of this text indicate the safety guards that have failed, give the reasons for their fail ure and, where it was possible, point out the safety guards that should or must be established . The article does not take into account theoretical models for the described accidents, but only practical aspects, human errors and applicable local and interna tional laws and regulations. Particular attention was devoted to the analysis of human errors made by officers maneuvering the surface vessel in the close vicinity of divers perfo rming underwater works.","PeriodicalId":46009,"journal":{"name":"TransNav-International Journal on Marine Navigation and Safety of Sea Transportation","volume":"85 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73613709","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}
Srdjan ŽuŁkin, David Brčić, Marin Uroda, Marko Strabic
: The Electronic Chart Display and Information Systems (ECDIS) became inevitable central navigational tool for effective voyage planning and voyage monitoring execution. Furthermore, each model comprises numerous navigational and other display components, each of them with its limitations, reliability and simplicity. This is also supported by the fact that there is a large number of approved manufacturer systems on the market. Apart from fulfilling the performance standards regulated by the International Maritime Organization (IMO), the system models differ significantly regarding handling, interface, and interpretation of data and information, therefore biasing the required knowledge and the purposefulness of the system. The aim of this study is to determine navigators’ response in ECDIS comparison of different manufacturer models to identify pros and cons of specific tasks, features and other navigational functions. The present work is based on international survey in form of questionnaire conducted among ECDIS stakeholders. Answers are presented and discussed, revealing certain shortcomings of specific manufacturer ECDIS system. On the other hand, the analyses show the significant advantages of each system, potentially leading to creation of the ideal system from the end ‐ user’s perspective. The proper configuration of ECDIS should standardise functions and display considering different types, and undoubtedly resolve a problematic issue as a consequence of numerous ECDIS models and their diversities.
{"title":"Evolving ECDIS: Concept Development Through Different Manufacturer Models Comparison","authors":"Srdjan ŽuŁkin, David Brčić, Marin Uroda, Marko Strabic","doi":"10.12716/1001.17.01.25","DOIUrl":"https://doi.org/10.12716/1001.17.01.25","url":null,"abstract":": The Electronic Chart Display and Information Systems (ECDIS) became inevitable central navigational tool for effective voyage planning and voyage monitoring execution. Furthermore, each model comprises numerous navigational and other display components, each of them with its limitations, reliability and simplicity. This is also supported by the fact that there is a large number of approved manufacturer systems on the market. Apart from fulfilling the performance standards regulated by the International Maritime Organization (IMO), the system models differ significantly regarding handling, interface, and interpretation of data and information, therefore biasing the required knowledge and the purposefulness of the system. The aim of this study is to determine navigators’ response in ECDIS comparison of different manufacturer models to identify pros and cons of specific tasks, features and other navigational functions. The present work is based on international survey in form of questionnaire conducted among ECDIS stakeholders. Answers are presented and discussed, revealing certain shortcomings of specific manufacturer ECDIS system. On the other hand, the analyses show the significant advantages of each system, potentially leading to creation of the ideal system from the end ‐ user’s perspective. The proper configuration of ECDIS should standardise functions and display considering different types, and undoubtedly resolve a problematic issue as a consequence of numerous ECDIS models and their diversities.","PeriodicalId":46009,"journal":{"name":"TransNav-International Journal on Marine Navigation and Safety of Sea Transportation","volume":"177 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77100613","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}
: In this contribution we present a review of the DIA ‐ method to ensure navigational integrity. The DIA ‐ method rigorously combines parameter estimation and statistical testing for the Detection, Identification and Adaptation of multivariate and multiple model misspecifications. We describe the statistical properties of the so ‐ obtained DIA ‐ estimator together with its probability density function. Numerical examples are given to highlight various aspects of the navigational DIA ‐ estimator.
{"title":"The DIA-Method for Navigational Integrity","authors":"P. Teunissen","doi":"10.12716/1001.17.01.16","DOIUrl":"https://doi.org/10.12716/1001.17.01.16","url":null,"abstract":": In this contribution we present a review of the DIA ‐ method to ensure navigational integrity. The DIA ‐ method rigorously combines parameter estimation and statistical testing for the Detection, Identification and Adaptation of multivariate and multiple model misspecifications. We describe the statistical properties of the so ‐ obtained DIA ‐ estimator together with its probability density function. Numerical examples are given to highlight various aspects of the navigational DIA ‐ estimator.","PeriodicalId":46009,"journal":{"name":"TransNav-International Journal on Marine Navigation and Safety of Sea Transportation","volume":"14 1-4 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72533413","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}
: The investment policy applied by seaport authorities has a great impact on the state of the natural environment in coastal regions. Unfortunately, in many cases, their environmental efforts are limited to the issues which are defined by the applicable legal regulations determined by International Maritime Organization, the Organization of United Nations and the European Commission etc. However, in recent years we can observe significant improvement in this area, especially in the seaports of Northern Europe. They often decide on highly capital ‐ intensive pro ‐ ecological investments allowing to reduce the level of pollution emitted from cruise ships during their handling in ports, such as e. g. the opportunity of connecting vessels to the shore ‐ side energy supply systems. Various solutions in this area are currently used in the world. The ports in Northern Europe are currently the leaders in this area. The use of such solutions is cost ‐ intensive, but it significantly reduces the level of pollution emitted by ships into the environment, and the level of noise and vibration caused by engines. This paper aims to assess the seaports ʹ involvement in Northern Europe in the preparation of seaport infrastructure enabling cruise ships to be connected to the onshore power supply systems. The article contains the results of surveys conducted with the use of two methods to adjust the research technique to the respondents’ needs, i.e. CASI (Computer ‐ Assisted Self Interviewing) and EMS (Electronic Mail Survey). The empirical research was conducted among the seaports in Northern Europe. The results of the survey may be of interest to seaport authorities and cruise ship owners.
{"title":"Environmentally Friendly Cruise Seaports in Northern Europe – Onshore Power Supply","authors":"J. Kizielewicz","doi":"10.12716/1001.17.02.12","DOIUrl":"https://doi.org/10.12716/1001.17.02.12","url":null,"abstract":": The investment policy applied by seaport authorities has a great impact on the state of the natural environment in coastal regions. Unfortunately, in many cases, their environmental efforts are limited to the issues which are defined by the applicable legal regulations determined by International Maritime Organization, the Organization of United Nations and the European Commission etc. However, in recent years we can observe significant improvement in this area, especially in the seaports of Northern Europe. They often decide on highly capital ‐ intensive pro ‐ ecological investments allowing to reduce the level of pollution emitted from cruise ships during their handling in ports, such as e. g. the opportunity of connecting vessels to the shore ‐ side energy supply systems. Various solutions in this area are currently used in the world. The ports in Northern Europe are currently the leaders in this area. The use of such solutions is cost ‐ intensive, but it significantly reduces the level of pollution emitted by ships into the environment, and the level of noise and vibration caused by engines. This paper aims to assess the seaports ʹ involvement in Northern Europe in the preparation of seaport infrastructure enabling cruise ships to be connected to the onshore power supply systems. The article contains the results of surveys conducted with the use of two methods to adjust the research technique to the respondents’ needs, i.e. CASI (Computer ‐ Assisted Self Interviewing) and EMS (Electronic Mail Survey). The empirical research was conducted among the seaports in Northern Europe. The results of the survey may be of interest to seaport authorities and cruise ship owners.","PeriodicalId":46009,"journal":{"name":"TransNav-International Journal on Marine Navigation and Safety of Sea Transportation","volume":"109 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77094382","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}
: This article presents an analysis of the Galileo E1 signal and its sensitivity to different types of interference. The research involved modeling white noise, chaotic impulse interference, and narrowband interference and the effects of these interfering signals on the E1 signal. Based on the available information, spectral structures were created for the mentioned types of interference, and subsequently, these int erferences were integrated into the E1 signal in the Matlab program environment. A Kallman filter was used to filter out white noise from the additive mixture of the E1 signal and white noise. The research aimed to analyze the influence of white noise, chaotic impulse interference, and narrowband interference on the spectral power density of the E1 signal. The results of this work can be used in the design of robust receivers and signal structures capable of withstanding these types of interference.
{"title":"Model of the Signal of the Galileo Satellite Navigation System","authors":"M. Džunda, SebastiÁn ēikovský, Lucia Balejčíková","doi":"10.12716/1001.17.01.04","DOIUrl":"https://doi.org/10.12716/1001.17.01.04","url":null,"abstract":": This article presents an analysis of the Galileo E1 signal and its sensitivity to different types of interference. The research involved modeling white noise, chaotic impulse interference, and narrowband interference and the effects of these interfering signals on the E1 signal. Based on the available information, spectral structures were created for the mentioned types of interference, and subsequently, these int erferences were integrated into the E1 signal in the Matlab program environment. A Kallman filter was used to filter out white noise from the additive mixture of the E1 signal and white noise. The research aimed to analyze the influence of white noise, chaotic impulse interference, and narrowband interference on the spectral power density of the E1 signal. The results of this work can be used in the design of robust receivers and signal structures capable of withstanding these types of interference.","PeriodicalId":46009,"journal":{"name":"TransNav-International Journal on Marine Navigation and Safety of Sea Transportation","volume":"176 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77491368","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}
Mariusz Specht, Szymon Widzgowski, A. Stateczny, C. Specht, Oktawia Lewicka
: There are many manufacturers on the market offering various types of Unmanned Aerial Vehicles (UAV). The multitude of drones available on the market means that the choice of a UAV for a specific application appears to be a decision problem to be solved. The aim of this article is a comparative analysis of drones used in photogrammetric
{"title":"Comparative Analysis of Unmanned Aerial Vehicles Used in Photogrammetric Surveys","authors":"Mariusz Specht, Szymon Widzgowski, A. Stateczny, C. Specht, Oktawia Lewicka","doi":"10.12716/1001.17.02.21","DOIUrl":"https://doi.org/10.12716/1001.17.02.21","url":null,"abstract":": There are many manufacturers on the market offering various types of Unmanned Aerial Vehicles (UAV). The multitude of drones available on the market means that the choice of a UAV for a specific application appears to be a decision problem to be solved. The aim of this article is a comparative analysis of drones used in photogrammetric","PeriodicalId":46009,"journal":{"name":"TransNav-International Journal on Marine Navigation and Safety of Sea Transportation","volume":"71 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78105876","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}
Hongwei He, E. Lataire, T. V. Zwijnsvoorde, G. Delefortrie
: This paper presents a user ‐ friendly simulator developed based on Windows Forms and deployed as a test bed for validating automatic control algorithms. The effectiveness of some of the integrated track controllers has been tested with free running experiments carried out in the Towing Tank for Manoeuvres in Shallow Water in Ostend, Belgium. The controllers enable a ship to follow predefined random paths with high accuracy. Ship ‐ to ‐ ship interaction is considered in some cases. Simulator environments provide useful tools for extending the number of validation scenarios, supplementing the work performed in the towing tank. The simulator is presented with a graphical user interface, aiming at providing a good user experience, numerous test scenarios and an extensively ‐ validated library of automatic control algorithms. With the usage of the simulator, further evaluation of developed control algorithms by implementing extensive test runs with different ships and waterways could be made. Case studies are shown to illustrate the functionality of the simulator.
{"title":"A Ship Manoeuvring Desktop Simulator for Developing and Validating Automatic Control Algorithms","authors":"Hongwei He, E. Lataire, T. V. Zwijnsvoorde, G. Delefortrie","doi":"10.12716/1001.17.03.12","DOIUrl":"https://doi.org/10.12716/1001.17.03.12","url":null,"abstract":": This paper presents a user ‐ friendly simulator developed based on Windows Forms and deployed as a test bed for validating automatic control algorithms. The effectiveness of some of the integrated track controllers has been tested with free running experiments carried out in the Towing Tank for Manoeuvres in Shallow Water in Ostend, Belgium. The controllers enable a ship to follow predefined random paths with high accuracy. Ship ‐ to ‐ ship interaction is considered in some cases. Simulator environments provide useful tools for extending the number of validation scenarios, supplementing the work performed in the towing tank. The simulator is presented with a graphical user interface, aiming at providing a good user experience, numerous test scenarios and an extensively ‐ validated library of automatic control algorithms. With the usage of the simulator, further evaluation of developed control algorithms by implementing extensive test runs with different ships and waterways could be made. Case studies are shown to illustrate the functionality of the simulator.","PeriodicalId":46009,"journal":{"name":"TransNav-International Journal on Marine Navigation and Safety of Sea Transportation","volume":"2 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78073242","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}
: Mangroves and the associated shoal forest known as ‘restinga ʹ are ecosystems of great ecological
红树林和与之相连的浅滩林被称为“restinga”，是极具生态价值的生态系统
{"title":"Potential Use of Mangroves as Nature-Based Solutions to Improve Navigation Conditions in a Port in Southern Brazil","authors":"Leo Previti, P. Alfredini","doi":"10.12716/1001.17.03.01","DOIUrl":"https://doi.org/10.12716/1001.17.03.01","url":null,"abstract":": Mangroves and the associated shoal forest known as ‘restinga ʹ are ecosystems of great ecological","PeriodicalId":46009,"journal":{"name":"TransNav-International Journal on Marine Navigation and Safety of Sea Transportation","volume":"12 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76690901","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}
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