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    Wyświetlanie 1-15 z 15
    Tytuł:
    Two various approaches to VTS Zatoka radar system reliability analysis
    Autorzy:
    Budny, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/2069598.pdf
    Data publikacji:
    2007
    Wydawca:
    Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
    Tematy:
    VTS system
    system reliability
    shipping safety
    Opis:
    In the paper we propose two ways of reliability calculation of radar system in Vessel Traffic Services Zatoka. Reliability and availability of the system were calculated on the base of reliability of the system components. In the first approach there was assumed that system is series, in the second approach system is treated as a series-“m out of n”. We obtain different results. Conclusion is that choosing proper method of approach to system reliability and availability analysis is decisive in appropriate evaluation of those properties.
    Źródło:
    Journal of Polish Safety and Reliability Association; 2007, 1; 39--43
    2084-5316
    Pojawia się w:
    Journal of Polish Safety and Reliability Association
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Identification of errors committed by Vessel Traffic Service operators
    Autorzy:
    Kotkowska, Diana
    Marcjan, Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/1818900.pdf
    Data publikacji:
    2021
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    VTS system
    VTS operator
    human factor
    human error identification
    operator reliability
    VTS simulation
    Opis:
    This paper examines the factors affecting the performance of VTS operators. A general review of the human factor as a determinant of navigational safety is presented. The elementary nature of the system and its structure are defined, and the ability of a VTS operator to perform planned tasks within a specified timeframe and in a specific manner is analyzed. A reliability assessment scheme is proposed, which is based on the interpretation of factors affecting the VTS operator’s efficiency. The effective performance of VTS operators, along with the specific nature of the maritime environment and reliability of the vessel traffic management support, are key determinants in the process of ensuring the reliability and security of the entire system.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2021, 65 (137); 61-71
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of the safety level of a ships passing manoeuvre in the fairway
    Autorzy:
    Narękiewicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/259662.pdf
    Data publikacji:
    2006
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    VTS
    bezpieczeństwo żeglugi
    system ruchu statków
    safety of navigation
    Vessels Traffic Service (VTS)
    Opis:
    Safe two-way vessel traffic may have some limitations. Fairway width, vessel dimensions, weather conditions, traffic density and other factors must be considered crucial and constraining safe passage of the vessel. The possible sea traffic regulation made by a Vessel Traffic Service (VTS) shore centre, is often based on criteria included in harbour regulations. This may not always be an optimum solution. This paper presents a concept and elements of a method for assessment of safe two-way traffic, based on experts' (pilots') knowledge and experience. The goal is to support the decision making process in a VTS centre. For this purpose tools of knowledge acquisition and representation as well as tools of statistical inference are used. The method is based on the results of the expert research which was performed with the participation of pilots who handle vessels on the Świnoujście-Szczecin fairway.
    Źródło:
    Polish Maritime Research; 2006, 1; 26-32
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The requirements for safe traffic and manoeuvring in approaches to the port of Świnoujście and the outer port of Świnoujście with particular emphasis on lng vessels
    Autorzy:
    Śniegocki, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/247053.pdf
    Data publikacji:
    2013
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    LNG
    LNG terminal
    approach tray
    fairway
    port canal
    air draft
    VTS
    Vessel Traffic System
    Opis:
    This paper presents an overview of the most important requirements and recommendations of international organizations for the area of LNG terminal under construction in Świnoujście. These recommendations should be considered when planning safe traffic and manoeuvring of ships in port approaches to the Port of Świnoujście and to the Outer Port of Świnoujście. The approach area to the new terminal is located on shallow waters. Up to the present moment the fairway, anchorages and seamarks have been used by vessels of smaller size. After the construction of the new port with an LNG terminal it will handle the greatest LNG carriers. To ensure their safe entrance to the port, the fairway should be prepared with sufficient width and depth, with navigational aids. It is also necessary to prepare appropriate emergency anchorages and places where the vessels can return in case further voyage is dangerous. Additionally LNG cargo is very dangerous, because of this there is a compulsory to introduce of the highest safety standards, both in the design of the approach area and the application procedures for ships traffic. In particular, fairways and port canals, Under Keel Allowance, air draft, turning basin, vessel traffic services (VTS), traffic separation schemes (TSS), moving safety zone, and required speed limit are presented in the paper.
    Źródło:
    Journal of KONES; 2013, 20, 4; 419-423
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Target Tracking in RIS
    Autorzy:
    Kazimierski, W.
    Stateczny, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/116190.pdf
    Data publikacji:
    2009
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Inland Navigation
    river information service (RIS)
    Target Tracking
    RIS System
    Tracking System
    Vessel Tracking
    vessel traffic service (VTS)
    radar
    Opis:
    The article treats of problems bound with the tracking of surface water targets in RIS systems. A concept of RIS has been briefly presented, indicating the need for locating in them the tracking and tracing of ships. The most popular sensors used for the purpose have been characterised, the most important relevant documents have been presented and the requirements set for tracking systems have been described.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 4; 385-390
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Applying Graph Theory Terms to Description of VTS
    Autorzy:
    Jackowski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/116154.pdf
    Data publikacji:
    2009
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    vessel traffic service (VTS)
    Marine Traffic System
    graph theory
    Graph Description
    Matrix Notation
    Applied Graph Theory
    Opis:
    The paper presents an example of applying graph theory notation to description of a VTS; it also contains some remarks on applicability of such notation for marine traffic systems.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 1; 55-58
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Development of the IANS Chain Using a Satellite System
    Autorzy:
    Czaplewski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/116843.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Interactive Navigational Structures (IANS)
    navigational methods
    navigation techniques
    terrestrial navigation
    vessel traffic service (VTS)
    satellite system
    satellite positioning system
    differential GPS (DGPS)
    Opis:
    This paper presents ideas for creating and developing Interactive Navigational Structures (IANS) by using satellite systems. The author of the present paper introduced the concept of IANS into the literature in 2004 (Czaplewski, 2004). The paper presents the possibility of adapting the contemporary methods of robust estimation that are used in geodesy for the purpose of performing selected marine navigation tasks. IANS utilise modern M-estimation methods. Interactive structures can assist human beings in carrying out special tasks at sea, for example, in identifying objects at sea and on land without the need to approach them. Moreover, these structures can also be used in the process of navigation carried out by underwater vehicles or unmanned watercraft. This paper presents the mathematical methods that are essential for creating IANS. The theoretical assumptions are illustrated with an example of how IANS can be used while performing a typical navigation task. The paper closes with information about research studies which deal with the practical aspects of using this set of mathematical methods.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8 no. 4; 485-493
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Novel Through Capacity Model for One-way Channel Based on Characteristics of the Vessel Traffic Flow
    Autorzy:
    Nie, Y.
    Liu, K.
    Xin, X.
    Yu, Q.
    Powiązania:
    https://bibliotekanauki.pl/articles/115997.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    maritime traffic
    vessel traffic service (VTS)
    vessel traffic flow
    one-way channel
    mathematical model
    Automatic Identification System (AIS)
    Opis:
    Vessel traffic flow is a key parameter for channel-through capacity and is of great significance to vessel traffic management, channel and port design and navigational risk evaluation. Based on the study of parameters of characteristics of vessel traffic flow related to channel-through capacity, this paper puts forward a brand-new mathematical model for one-way channel-through capacity in which parameters of channel length, vessel arrival rate and velocity difference in different vessels are involved and a theoretical calculating mechanism for the channel-through capacity is provided. In order to verify availability and reliability of the model, extensive simulation studies have been carried out and based on the historical AIS data, an analytical case study on the Xiazhimen Channel validating the proposed model is presented. Both simulation studies and the case study show that the proposed model is valid and all relative parameters can be readjusted and optimized to further improve the channel-through capacity. Thus, all studies demonstrate that the model is valuable for channel design and vessel management.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 3; 495-502
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Passage Planning System in Ports: An overview
    Autorzy:
    Yip, T. L.
    Powiązania:
    https://bibliotekanauki.pl/articles/116807.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Sea Ports
    Passage Planning
    Passage Planning System in Ports
    Maritime Traffic
    Traffic Control
    Vessel Traffic Control
    vessel traffic service (VTS)
    Passage Planning System (PPS)
    Opis:
    A conceptual model is proposed to monitor marine traffic through precautionary areas, which can provide us with a systematic control of passage planning in ports. On one hand, vessel traffic control has its special features and is fundamentally different from highway, air and pedestrian traffic control. The existing traffic control systems cannot be simply extended to vessel traffic control without addressing marine traffic features. On the other hand, existing vessel traffic control focuses on one ship or two ships but does not address the flows of marine traffic.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2015, 9, 4; 483-487
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Data Acquisition in a Manoeuver Auto-negotiation System
    Autorzy:
    Szlapczynska, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/116788.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Trajectory Planning with Negotiation
    Trajectory Planning
    Negotiation
    Auto-Negotiation System
    Data Acquisition, Manoeuvering
    vessel traffic service (VTS)
    Collision Avoidance
    Opis:
    Typical approach to collision avoidance systems with artificial intelligence support is that such systems assume a central communication and management point (such as e.g. VTS station), usually located on shore. This approach is, however, not applicable in case of an open water encounter. Thus, recently a new approach towards collision avoidance has been proposed, assuming that all ships in the encounter, either restricted or open water, communicate with each other and negotiate their maneuvers, without involving any outer management or communication center. Usually the negotiation process is driven by the collision avoidance software and called auto-negotiation. This paper elaborates on data acquisition problem in case of the maneuver auto-negotiation. It focuses on ships' initialization in the system and data gathering.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2015, 9, 3; 343-348
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reliability structure of the vessel traffic services in the Gulf of Gdansk
    Autorzy:
    Budny, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/393970.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Stowarzyszenie Telematyki Transportu
    Tematy:
    system monitorowania ruchu
    system nadzoru ruchu statków
    struktura niezawodności
    transport morski
    Zatoka Gdańska
    traffic monitoring systems
    systems reliability
    vessel traffic services (VTS)
    reliability structure
    Opis:
    In the paper reliability structure of the Vessel Traffic Services Gulf of Gdansk system is described. Four different functional subsystems are distinguished. Some definitions of the different kinds of structures are also presented.
    Źródło:
    Archives of Transport System Telematics; 2009, 2, 3; 3-7
    1899-8208
    Pojawia się w:
    Archives of Transport System Telematics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Automatic Identification System on Safety of Navigation at Sea
    Autorzy:
    Stupak, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/117256.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    marine navigation
    Automatic Identification System (AIS)
    safety at sea
    Safety of Navigation
    Gulf of Gdansk
    vessel traffic service (VTS)
    Radar Target
    Radar Tracking
    Opis:
    Detection of small crafts/targets, in particular, sailing yachts with the ship's radar is not always possible. Radar reflectors are used to improve their detection. The AIS (Automatic Identification System) transmits position, motion vector and identification signals of a vessel to other ships and VTS (Vessel Traffic Services) centers . This system significantly increases the possibility to detect small crafts. The paper presents results of comparative study of using information from the Automatic Identification System and from radar to determine the accuracy of tracking the position and motion vector of ships in the Gulf of Gdansk. Possibilities and limitations of the AIS are also presented.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 3; 337-341
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    AIS based shipping routes using the dijkstra algorithm
    Autorzy:
    Silveira, P.
    Teixeira, A. P.
    Guedes-Soares, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/116029.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Dijkstra’s Algorithm
    AIS Data
    Automatic Identification System (AIS)
    AIS based shipping routes
    shipping routes
    Vessel Traffic Service (VTS)
    port of Setubal
    Ro-Ro Terminal
    Opis:
    This paper proposes an approach for identifying and characterizing shipping routes using information contained in Automatic Identification System messages broadcasted by ships and recorded by the coastal Vessel Traffic Service centre. The approach consists of using historical Automatic Identification System data to build a graph, where nodes are cells of a grid covering the geographical area being studied and the weights of directional edges are inversely related to ship movements between cells. Based on this graph, the Dijkstra algorithm is used to identify a potential safe route, assumed to be the most used route by ships between two locations. A second graph is created simultaneously, with the same nodes and edges, but with edge weights equal to the average speed of transitions between cells, thus allowing the determination of the average speed profile for any possible path within the graph. The proposed approach is applied to two scenarios: an approach to the port of Lisbon and the entry through the fairway to a RO-RO terminal in the port of Setubal in Portugal.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 3; 565-571
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Identifying and Analyzing Safety Critical Maneuvers from High Resolution AIS Data
    Autorzy:
    Mestl, T.
    Tallakstad, K.T.
    Castberg, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/117375.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    AIS Data
    Automatic Identification System (AIS)
    High Resolution AIS Data
    Critical Maneuvers
    1-2-3 Rule
    vessel traffic service (VTS)
    AIS Transponder
    Safety of Navigation
    Opis:
    We demonstrate the value in previously disregarded parameters in AIS data, and present a novel way of quickly identifying and characterizing potentially safety critical situations for vessels with a properly configured AIS transponder. The traditional approach of studying (near) collision situations, is through vessel conflict zones, based on vessel location and speed from low resolution AIS data. Our approach utilizes the rate of turn parameter in the AIS signal, at maximum time resolution. From collision investigation reports it is often seen that prior to or at collision navigators perform frenetic rudder actions in the hope to avoid collision in the last second. These hard maneuverings are easily spotted as non-normal rate of turn signals. An identified potential critical situation may then be further characterized by the occurring centripetal acceleration a vessel is exposed to. We demonstrate the novelty of our methodology in a case study of a real ship collision. As the rate of turn parameter is directly linkable to the navigator behavior it provides information about when and to what degree actions were taken. We believe our work will therefore inspire new research on safety and human factors as a risk profiles could be derived based on AIS data.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2016, 10, 1; 69-77
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Method foranalyzing AIS data and determination of simultaneously ships passage via strait of split
    Autorzy:
    Bukljaš, M.
    Vukša, S.
    Pavić, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/116084.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Automatic Identification System (AIS)
    AIS Data
    strait of split
    ships passage
    AIS Decoder
    simultaneous ship passage
    Vessel Traffic Service (VTS)
    International Waterway Risk Assessment Program (IWRAP)
    Opis:
    The traffic density is a basic characteristic of marine traffic for some navigational area. In the case of narrow channels such as Strait of Split (Splitska vrata), apart from the traffic density, the number of simultaneous ship passages is also important as well as ships characteristics. Based on such data, additional navigational safety guidelines and regulations may be planned for the observed area. The purpose of this research is to determine the number of simultaneous ship passages via Strait of Split for a certain period of time. Collected AIS data in SPNMEA format was decoded by AIS Decoder online program to csv file. For five randomly selected days in the summer period, based on AIS data, the number of simultaneous ship passages was determined and ships information presented.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 4; 679-684
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-15 z 15

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