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    Wyświetlanie 1-6 z 6
    Tytuł:
    The safe ships trajectory in a restricted area
    Autorzy:
    Pietrzykowski, Z.
    Magaj, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/360322.pdf
    Data publikacji:
    2014
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    safety of navigation
    ship trajectory
    restricted area
    ship domain
    optimization
    Opis:
    This paper presents the problem of determining a safe ship trajectory in a restricted area. The route choice task is defined as a dynamic optimization problem. The route choice algorithm and criteria are presented and discussed. The ship fuzzy domains are used as a safety criterion. The criterion of the number of manoeuvres to be performed by the own ship is added to the algorithm. The ship encounters simulated situations. Calculated safe ship trajectories were presented and discussed. Discusses the implementation of the present process, in real terms.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2014, 39 (111); 122-127
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The problem of route determination in ship movement in a restricted area
    Autorzy:
    Pietrzykowski, Z.
    Magaj, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/320731.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Forum Nawigacyjne
    Tematy:
    safety of navigation
    ship trajectory
    restricted area
    ship domain
    multi-stage control
    Opis:
    This article focuses on the problem of determining a safe trajectory of a ship proceeding in a restricted area. An algorithm of trajectory choice has been developed, taking into account the parameters of the area, own ship, target ship and other vessels sailing in vicinity. The ship domain has been adopted as a safety criterion. The research results for selected test trials are presented and analyzed. The applicability of the proposed method of trajectory choice in real conditions is considered.
    Źródło:
    Annual of Navigation; 2012, No. 19, part 2; 53-69
    1640-8632
    Pojawia się w:
    Annual of Navigation
    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:
    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:
    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:
    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 1-6 z 6

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