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1
Content available The role of instruments of the common agricultural policy to ensure stability of commercial agricultural holdings and development of rural areas a case study of Opole province
Bisaga A., Sokołowska S.
Ekonomia i Środowisko
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2018
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nr 1
110--120
EN
The aim of the paper is to show the role of users of commercial agricultural holdings in the development of local areas and to select instruments of the Common Agricultural Policy (CAP), which are significant in building developmental potentials of agriculture and rural areas in Opole Province. The modernization processes going on in commercial agriculture result in its de-placement. Thanks to instruments of the Common Agricultural Policy (CAP) there follows a re-rooting of agriculture in the territory. On the basis of survey research carried out in 2014 in 100 commercial agricultural holdings based in Opole Province, which were selected for the purpose, the authors present an analysis of farmers’ opinions concerning different instruments of the CAP, which favor sustainable development of the country and agriculture. According to the farmers, the action “Modernization of agricultural holdings” make the priority instrument of the Program of Rural Areas Development (PRAD), while improvement of agricultural holdings’ profitability has facilitated the process of their ecological modernization. The results of the research confirm the fact that farmers still make a vital developmental environment in the rural areas of Opole Region. However, the research has revealed their weak support for financing of grassroots institutions within the actions of the Program of Rural Areas Development, which can pose a barrier to implementing the paradigm of integrated territorial development.
2
Content available Stochastic Model of Ships Traffic Capacity and Congestion - Validation by Real Ships Traffic Data on Świnoujście - Szczecin Waterway
Gucma L., Bąk A., Sokołowska S.
Annual of Navigation
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2017
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No. 24
191
EN
Paper presents validation of previously created stochastic ships traffic stream model by the real data of ships delays on Świnoujście — Szczecin waterway. The model is mostly based on Monte Carlo methodology. The model is microscopic which means that each ship’s model is treated as separate object possessing given attributes. As the main parameter of presented validation total waiting (delay) time of ships have been applied. The time of ships delays was possessed from Szczecin VTS centre and compared with the model output.
PL
W artykule przedstawiono wyniki walidacji wcześniej stworzonego stochastycznego modelu strumienia ruchu statków przez porównanie z rzeczywistymi danymi o opóźnieniu statków na drodze wodnej Świnoujście — Szczecin. Model został zbudowany w oparciu o metodologię Monte Carlo. Jest to model z kategorii „mikroskopowych”, co oznacza, że każdy statek jest traktowany jako odrębny obiekt, cechujący się indywidualnymi atrybutami. Jako główny parametr walidacji przyjęto całkowity czas oczekiwania (opóźnienia) statków. Czas definiujący opóźnienie statków został pozyskany z centrum VTS Szczecin i porównany z wynikami modelowymi.
3
Content available Stochastic model of ship traffic congestion in waterways applied to determine the influence of Liquefied Petroleum Gas tanker introduction on ship traffic on the Świnoujście–Szczecin waterway
Gucma L., Bąk A., Sokołowska S., Hajduk J.
Zeszyty Naukowe Akademii Morskiej w Szczecinie
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2016
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nr 45 (117)
69--74
EN
This paper presents the stages in stochastic ship traffic stream model creation, applied to determine the influence of liquefied petroleum gas (LPG) tanker introduction to Police Port on the Świnoujście–Szczecin waterway. The model is based on the Monte Carlo methodology, and is microscopic (which means that each ship’s model is treated as a separate object possessing given attributes). The model is applied here in order to find the influence of ships with dangerous cargo (LPG tankers in the case study) on regular ship traffic, and hence to establish whether special traffic solutions are necessary.
4
Content available Traffic and safety of inland ships in Szczecin Port in the aspect of new investments in this area
Gucma L., Sokołowska S.
Zeszyty Naukowe / Akademia Morska w Szczecinie
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2014
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nr 37 (109)
34--38
EN
The paper presents several issues concerned with safety of inland ships navigation in Szczecin Port area. Additionally the analysis of inland ships movement has been performed which is necessary to full picture of safety analysis. The problems related with safety of inland ships on the area of deep sea ports is often omitted in safety analysis, which could be the reason of lowering safety level or neglecting important issues related to port safety.
5
Content available Simulation analysis of safe passing between ships on the seaway Szczecin–Świnoujście with the applicable port regulations
Sokołowska S., Marcjan K., Gralak R.
Zeszyty Naukowe / Akademia Morska w Szczecinie
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2013
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nr 36 (108) z. 2
175--181
EN
This paper presents simulation analysis of vessels approaching and vessels departuring from the port of Szczecin and Police focusing on the encounters between two vessels. The analysis parameters such as length and draft were examined. Particular attention was paid to the restricted sections of the seaway between Zalew Szczeciński and Basen Górniczy. The results of these simulation trials and the resulting analysis can be helpful while updating port regulations and for the assessment of the traffic density and the capacity of the waterway.
6
Content available Analysis of real underkeel clearance for Świnoujście–Szczecin waterway in years 2009-2011
Schoeneich M., Sokołowska S.
Zeszyty Naukowe / Akademia Morska w Szczecinie
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2012
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nr 32 (104) z. 2
162-166
EN
The paper presents the practical using of model for underkeel clearance evaluation. Real data from Maritime Office concerning ships which enter ports was used to analysis of results first probabilistic model of underkeel clearance and next integrated system. During analysis mean probability that underkeel clearance will be less than zero was determined for ports in Świnoujście, Szczecin and Police. Results of this analysis can be used for further research connected with integrated system for underkeel clearance calculation.
7
Content available An analysis of the size of ships entering Szczecin including oversize vessels
Gucma L., Sokołowska S.
Zeszyty Naukowe / Akademia Morska w Szczecinie
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2012
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nr 30 (102)
61-65
EN
The paper presents an analysis of vessels entering the port of Szczecin in 2011 in terms of their size. The analysis comprises such ship parameters as length, breadth and draught. Focus has been put on those ships that require special entrance permission from Harbour Master. The analysis results can be useful in modeling vessel traffic streams and the assessment of traffic intensity on a waterway.
PL
W artykule dokonano analizy jednostek wchodzących w roku 2011 do portu w Szczecinie, koncentrując się na ich wielkości. Analizom poddano takie parametry jak: długość, szerokość i zanurzenie. Szczególnie skoncentrowano się na jednostkach wymagających indywidualnego pozwolenia na wyjście od kapitana portu z uwagi na swoje gabaryty. Wyniki takich analiz mogą być pomocne w budowie modeli strumieni ruchu statków oraz oceny obciążenia drogi wodnej przez przechodzące nią statki.
8
Content available Verification of probabilistic method for under keel clearance assessment based on ships entering to Świnoujście, Szczecin and Police ports
Schoeneich M., Sokołowska S.
Zeszyty Naukowe / Akademia Morska w Szczecinie
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2010
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nr 20 (92)
114-119
EN
The paper presents verification of probabilistic method for under keel clearance determination. The method enables to determine the distribution of under keel clearance in several ship's passages and in further step to assess the probability of ship's grounding accident during the port approach. The model which uses this method is available online for authorized users and could be used for decision making process of harbour captain in everyday practice. The results of using this model could be used in risk assessment of ships entering to the ports, therefore it is possible to introduce using online model for Polish harbours workers. Research results present verification of probabilistic model, based on data from Szczecin Maritime Office and probability of touching the bottom during ships' passages on Świnoujście-Szczecin waterway. Moreover there are presented examples of some situations when entering to the port for analyzed ships is not allowed.
PL
W artykule zaprezentowano weryfikację probabilistycznej metody określania zapasu wody pod stępką. Metoda ta pozwala na określenie rozkładu zapasu wody pod stępką, a także wskazanie prawdopodobieństwa wejścia na mieliznę statku podczas podejścia poszczególnej jednostki do portu. Model, który korzysta z tej metody jest dostępny on-line dla uprawnionych użytkowników i może być używany w codziennej praktyce przy podejmowaniu decyzji przez Kapitana Portu. Wyniki otrzymane przy wykorzystaniu modelu mogą służyć do oceny ryzyka statków, które zawijają do portu, dlatego też możliwe jest zalecenie wykorzystania modelu on-line przez pracowników polskich portów. Wyniki badań prezentują weryfikację modelu probabilistycznego w oparciu o dane z Urzędu Morskiego w Szczecinie oraz prawdopodobieństwo kontaktu kadłuba statku z dnem w czasie przejścia torem wodnym Świnoujście-Szczecin. Podane są także przykłady pewnych sytuacji, gdy wejście analizowanych statków do portu jest niedozwolone.
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