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    Wyświetlanie 1-8 z 8
    Tytuł:
    Ship domains in Traffic Separation Schemes
    Autorzy:
    Pietrzykowski, Z.
    Magaj, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/135545.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    navigation
    safety
    ship domain
    Traffic Separations Scheme
    density of traffic
    navigational equipment
    Opis:
    Ship movement processes in selected Traffic Separations Schemes (TSS) of Southern Baltic Sea were analyzed. Ship domains in the analyzed water areas were calculated from Automatic Identification System (AIS) registered data. The purpose of investigation was identification of ship domain parameters taking into account different domain determination criteria. The results were compared and discussed. The conclusions were drawn.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 45 (117); 143-149
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of ship domains in traffic separation schemes
    Autorzy:
    Pietrzykowski, Z.
    Magaj, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/135675.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    navigation
    safety
    ship domain
    Traffic Separations Schemes
    natural limitations
    criterion
    Opis:
    The ship domain is a criterion of safety assessment in ship encounter situations. This criterion allows us to identify dangerous situations in open sea and restricted areas, the latter characterized by natural limitations such as the shore line, or artificial ones e.g., boundaries of Traffic Separation Schemes (TSSs). This article analyzes ship domains in TSSs. These schemes, being established in areas where vessel traffic is intensive, as a rule have virtual traffic lanes that indicate the direction of vessel traffic flow. The influence of the ship size and type on domain shape and size in a TSS has been examined. The domains have been defined on the basis of AIS data and statistical methods. The analyzed ship domains have been approximated by ellipses. The authors have determined intervals of changes in domain parameters.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 48 (120); 88-95
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The ship safety zones in vessel traffic monitoring and management systems
    Autorzy:
    Wielgosz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/135001.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    navigational danger
    safety
    safety frame
    safety zone
    ship domain
    traffic monitoring
    Opis:
    This paper presents the problem of the “know-how” needed by the operators of vessel traffic supervision, monitoring, advisory and safety zone management systems required and maintained by marine navigators on their ships. The problem of the proper and correct interpretation of these systems is raised. Different types of ship safety zones, concerning both anti-collision and navigational purposes are presented, introducing the concept of hydrographic ship domain. Anti-collision and hydrographic domains were compared in order to establish mutual dependence. The factors influencing the two types of ship domains were analysed. The author proposed their merging and replacement with one universal domain, discussing its advantages and disadvantages. The analysis of the factors influencing the shape and size of such ship safety zones in conducted. The results in the different phases of research were presented and conclusions were drawn.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 48 (120); 153-158
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Navigation decision support for sea-going ships in port approach areas
    Autorzy:
    Pietrzykowski, Z.
    Magaj, J.
    Wielgosz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/135370.pdf
    Data publikacji:
    2018
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    navigation
    decision support
    safety
    approach area
    ship domain
    traffic monitoring
    collision avoidance
    Opis:
    Port approaches are high-traffic areas with limited manoeuvring space. Navigation in such areas requires the analysis of large amounts of information, which can impede decision processes. One solution may be the development of decision support systems dedicated to these areas. This paper presents an attempt to build a navigation decision support system operable in the approach area leading to the port of Świnoujście (Poland), with ship domain implemented as a safety criterion. Assumptions for a decision support system to be used by sea-going vessels in port approach areas are formulated and discussed. Specific features of these areas, such as traffic density, bathymetry, available manoeuvring space and legal limitations are taken into account. The source and scope of information available to the ship have been analysed. The scope of decision support has been defined. A ship domain has been proposed as a safety criterion. Approach areas leading to the port of Świnoujście have been investigated on the basis of real Automatic Identification System (AIS) data. Vessel movement processes in the chosen area were analysed. Ship domains in various parts of the area were determined. The first results concerning criteria for navigational safety assessment are presented. The conducted studies showed significant differences in the size of domains. A case study was performed on a decision support system operable in the approach area leading to Świnoujście.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2018, 54 (126); 75-83
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Kształt i rozmiary stref bezpieczeństwa statku
    Shape and Dimension of Ships Safety Zones
    Autorzy:
    Uriasz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/360593.pdf
    Data publikacji:
    2006
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    bezpieczeństwo nawigacji
    strefa bezpieczeństwa statku
    domena statku
    pas ruchu
    strefa zabroniona
    EXPLO-SHIP 2006
    safety of navigation
    ship's safety zone
    ship domain
    traffic lane
    forbidden zone
    Opis:
    Bezpieczne prowadzenie statku wymaga ciągłej identyfikacji i oceny sytuacji nawigacyjnej. Ocena bezpieczeństwa statku własnego sprowadzana jest często do ustalenia i obserwacji stref wokół statku. Pojawienie się obiektów obcych w tych strefach powoduje powstanie zagrożenia bezpieczeństwa nawigacji i wymaga jego oszacowania oraz podjęcia odpowiednich przeciwdziałań. Innym podejściem jest sytuacja, w której zachowanie odpowiedniego poziomu bezpieczeństwa nawigacji wymaga nawigowanie w ramach ustalonej strefy (np. strefa rozgraniczenia ruchu). W artykule przedstawiono różne rodzaje stref bezpieczeństwa statku oraz ich przeznaczenie.
    Ship's safety requires continuous identification and assessment of the navigational situation. The assessment of own ship's safety is often reduced to watching the established zones around the ship. The safety level is decreased when another object disturbs the established zones, which requires evaluating the risk and making adequate countermeasures. The situation when we have to maintain an adequate level of safety leads to another approach, i.e. it requires navigating the ship within an established zone (traffic separation scheme). In the paper different kinds of ship's zones and their purpose are presented.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2006, 11 (83); 343-354
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of near-collisions in the Tagus River Estuary using a marine traffic simulation model
    Autorzy:
    Rong, H.
    Teixeira, A.
    Soares, C. G.
    Powiązania:
    https://bibliotekanauki.pl/articles/135293.pdf
    Data publikacji:
    2015
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    near-collisions
    ship domain
    marine traffic simulation
    artificial potential field
    AIS data
    maritime safety
    Opis:
    This paper evaluates near ship-ship collision situations in the Tagus River Estuary using a simulation model of ship navigation in restricted waters. The simulation model consists of a ship collision avoidance model based on the Artificial Potential Field (APF) method, which has been improved to account for the lateral distribution of traffic along the route, the ship type and length and speed development of the ships along the trajectory. AIS data of ships entering and leaving the port of Lisbon are analysed to obtain the main characteristics of traffic parameters used as input for the traffic simulation model, such as: the routes of the vessels, speed distribution along the routes, traffic density and characteristics of the ships in each route, among others. First, the improved model of ship navigation and the Monte Carlo simulation technique are used to simulate the marine traffic in the Tagus River Estuary. Then, the concept of “ship domain” is used as collision criterion to determine the number of near collisions and the locations where they are most likely to occur. Finally, the simulation results are compared to the ones obtained from raw AIS data to assess the capability of the simulation model for marine traffic risk analysis.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2015, 43 (115); 68-78
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of a critical area for a give-way ship in a collision encounter
    Autorzy:
    Krata, P.
    Montewka, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/223997.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    maritime traffic safety
    collision risk
    anticollision
    ship's motion model
    ship domain
    bezpieczeństwo ruchu morskiego
    ryzyko kolizji
    zapobieganie kolizji
    ruch statku
    model ruchu statku
    Opis:
    Evasive action in ship-ship encounter has to be carried out on time and in line with the international convention on collision regulation – COLREG. The convention not only includes a set of rules defining types of relations between encountering ships but also indicates appropriate action to be taken in a given encounter. One of such encounters is crossing, where, in case of a collision situation, a give-way ship has to take an appropriate action in due time. However, a stand-on vessel is also given an opportunity to manoeuver, if it is made clear to her that the other ship is not fulfilling her obligations. However, it is difficult to specify, at which point in time in the course of an encounter, the stand-on ship has to take an action in order to avoid collision. It is understandable, as this parameter depends on numerous factors, both endogenous (e.g. ship characteristics, her maneuverability), and exogenous (e.g. type of encounter, weather conditions). Therefore in this paper we make an attempt towards the definition of the critical area for a maneuver of a stand-on ship, in the situation where the give-way vessel does not take an action. This is determined with the use of a hydrodynamic model of ship motion, and series of simulations conducted for several types of encountering ships under various conditions. Once determined, the critical area demarcates the no-go area around the own ship, where any other ships on collision courses must not enter. Otherwise a collision cannot be avoided by an action of one ship alone.
    Źródło:
    Archives of Transport; 2015, 34, 2; 51-60
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ship domain as a safety criterion in a precautionary area of traffic separation scheme
    Autorzy:
    Pietrzykowski, Z.
    Magaj, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/116705.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    ship domain
    Closest Point of Approach (CPA)
    Traffic Separation Schemes (TSS)
    navigational safety assessment
    precautionary area
    safety criterion
    safety at sea
    colregs
    Opis:
    The ship domain is one of the criteria for navigational safety assessment. It is particularly important in restricted areas with high intensity traffic, where the criteria of closest point of approach (CPA) and time to CPA are difficult to apply. This research continues to examine ship domains in Traffic Separation Schemes (TSS). We have analyzed precautionary areas established within TSSs in connection with changed arrangements of vessel traffic. Besides, we have defined ship domains in a precautionary area of a specific TSS, and compared them to domains of vessels proceeding along traffic lanes.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 1; 93-98
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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