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Wyświetlanie 1-49 z 49
Tytuł:
Problems of sea route planning for a ship operating in piracy-threatened areas: the Indian Ocean
Problemy wyboru drogi morskiej statku operującego na akwenach zagrożonych atakami pirackimi na przykładzie Oceanu Indyjskiego
Autorzy:
Wiśniewski, B.
Siódmak, S.
Powiązania:
https://bibliotekanauki.pl/articles/359986.pdf
Data publikacji:
2011
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
planowanie podróży statku
piraci
route planning
pirates
Opis:
One of the essential issues in the multi-criteria process of voyage planning is the safety of personnel, cargo and the ship itself, accounting for the optimized voyage time and costs. Apart from sometimes difficult weather and navigational conditions, pirates have been a new major threat to the safety of navigation since the beginning of this century. It is because of piracy, traditional routes of vessels differ from seasonal ones, and their threat is taken into consideration in decisions concerning the choice of the sea route of a ship. This article indicates the most dangerous routes in terms of pirate attacks occurrence over the last few years in the Indian Ocean. An attempt is made to relate the number of pirate attacks to hydrometeorological conditions and to define the effect of pirates activities on the problems of choosing the vessel sea route.
W wielokryterialnym procesie planowania podroży statku jednym z najważniejszych zagadnień jest bezpieczeństwo znajdujących się na nim ludzi, ładunku i samego statku przy jednoczesnej optymalizacji czasu i kosztów podróży. Od kilku lat bezpieczeństwu nawigacji obok warunków pogodowych i nawigacyjnych zaczęli zagrażać piraci, którzy stali się głównym niebezpieczeństwem nawigacji początku XXI w. Właśnie ze względu na nich, dotychczasowe trasy statków odbiegają od sezonowych, a zagrożenie, jakie niosą, uwzględnia się w procesie decyzyjnym wyboru drogi morskiej statku. W artykule wskazano najbardziej niebezpieczne obszary pod względem występowania ataków pirackich w ostatnich latach na przykładzie Oceanu Indyjskiego. Dokonano próby powiązania liczby ataków pirackich z warunkami hydrometeorologicznymi, wskazując jednocześnie na wpływ aktywności piratów na problemy wyboru drogi morskiej statku.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2011, 26 (98); 114-119
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Towards Intelligent and User-Friendly Vehicle Navigation Systems
Inteligentne i przyjazne dla użytkownika systemy nawigacji pojazdów
Autorzy:
Ernst, S.
Powiązania:
https://bibliotekanauki.pl/articles/275279.pdf
Data publikacji:
2011
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
planowanie tras
nawigacja
GIS
route planning
navigation
Opis:
The article presents a new approach to vehicle route planning and navigation, called robust route planning. Until recently, inclusion of intelligence in route planning systems was limited to path determination algorithms. The presented approach tries to take intelligent navigation systems to a new level by supplying the driver with multiple options and letting them utilize their own intelligence when making decisions. The paper summarizes recent work and presents current and future research direction in this field.
Artykuł przedstawia nowe podejście do planowania tras przejazdu i nawigacji - odporne granularne planowanie tras. Do niedawna, elementy sztucznej inteligencji w systemach planowania trasy występowały przede wszystkim w algorytmach używanych do wytyczania ścieżki. Prezentowane podejście ma na celu wytworzenie inteligentnych systemów nawigacyjnych, przedstawiających kierowcy wiele wariantów i pozwalających mu użyć inteligencji i obserwacji do podejmowania decyzji.
Źródło:
Pomiary Automatyka Robotyka; 2011, 15, 12; 229-231
1427-9126
Pojawia się w:
Pomiary Automatyka Robotyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Planowanie tras przewozu ładunków z nabrzeża na plac składowy w morskim terminalu kontenerowym w Gdańsku
Route planning for cargo transport from the quay to the yard in maritime container terminal in Gdańsk
Autorzy:
Bartosiewicz, Aleksandra
Powiązania:
https://bibliotekanauki.pl/articles/588107.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Ekonomiczny w Katowicach
Tematy:
DCT Gdańsk
Planowanie tras przewozu
Route planning
Opis:
W artykule przedstawiona została problematyka właściwego wyboru tras przejazdu lądowych środków transportowych z nabrzeża na plac składowy oraz analiza trafności doboru jednostki transportowej do danego zadania. Badanie przeprowadzono na przykładzie głębokowodnego terminalu kontenerowego DCT Gdańsk.
In the article there is presented a problem of finding best routes for terminal tractors transporting containers from the quay to the yard. The paper also includes an analysis of how accurately transport units are selected for their job. The study covers the Deepwater Container Terminal DCT Gdańsk.
Źródło:
Studia Ekonomiczne; 2015, 235; 18-33
2083-8611
Pojawia się w:
Studia Ekonomiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Principles of vessel route planning in Ice on the Northern Sea Route
Autorzy:
Pastusiak, T.
Powiązania:
https://bibliotekanauki.pl/articles/117236.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
ice navigation
route planning
vessel route planning
Northern Sea Route (NSR)
arctic area
human factor
Safety at Sea
polar navigation
Opis:
A complex of ice cover characteristics and the season of the year were considered in relation to vessel route planning in ice-covered areas on the NSR. The criteria for navigation in ice - both year-round and seasonal were analyzed. The analysis of the experts knowledge, dissipated in the literature, allowed to identify some rules of route planning in ice-covered areas. The most important processes from the navigation point of view are the development and disintegration of ice, the formation and disintegration of fast ice and behavior of the ice massifs and polynyas. The optimal route is selected on basis of available analysis and forecast maps of ice conditions and ice class, draught and seaworthiness of the vessel. The boundary of the ice indicates areas accessible to vessels without ice class. Areas with a concentration of ice from 0 to 6/10 are used for navigation of vessels of different ice classes. Areas of concentration of ice from 7/10 up are eligible for navigation for icebreakers and vessels with a high ice class with the assistance of icebreakers. These rules were collected in the decision tree. Following such developed decision-making model the master of the vessel may take decision independently by accepting grading criteria of priorities resulting from his knowledge, experience and the circumstances of navigation. Formalized form of decision making model reduces risk of the "human factor" in the decision and thereby help improve the safety of maritime transport.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2016, 10, 4; 587-592
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of vehicle stability loss due to strong crosswind gusts using web services in the route planning process
Autorzy:
Betkier, Igor
Mitkow, Szymon
Kijek, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/223957.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
crosswind
transportation planning
vehicle stability
web applications
route planning
Źródło:
Archives of Transport; 2019, 52, 4; 47-56
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vessels Route Planning Problem with Uncertain Data
Autorzy:
Neumann, T.
Powiązania:
https://bibliotekanauki.pl/articles/115957.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
maritime-related data
route planning
dempster-shafer theory (DST)
vessels route planning
Dijkstra's algorithm
decision rules
mathematical theory of evidence
uncertain data
Opis:
The purpose of this paper is to find a solution for route planning in a transport networks, where the costs of tracks, factor of safety and travel time are ambiguous. This approach is based on the Dempster-Shafer theory and well known Dijkstra's algorithm. In this approach important are the influencing factors of the mentioned coefficients using uncertain possibilities presented by probability intervals. Based on these intervals the quality intervals of each route can be determined. Applied decision rules can be described by the end user.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2016, 10, 3; 459-464
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Military route planning in battlefield simulation: effectiveness problems and potential solutions
Autorzy:
Tarapata, Z.
Powiązania:
https://bibliotekanauki.pl/articles/309343.pdf
Data publikacji:
2003
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
battlefield simulation
route planning
shortest paths
effectiveness problems
computational complexity
Opis:
Path searching is challenging problem in many domains such as simulation war games, robotics, military mission planning, computer generated forces (CGF), etc. Effectiveness problems in military route planning are related both with terrain modelling and path planning algorithms. These problems may be considered from the point of view of many criterions. It seems that two criterions are the most important: quality of terrain reflection in the terrain model and computational complexity of the on(off)-line path planning algorithm. The paper deals with two above indicated problems of route planning effectiveness. Comparison of approaches used in route planning is presented. The hybrid, terrain merging-based and partial path planning, approach for route planning in dynamically changed environment during simulation is described. It significantly increase effectiveness of route planning process. The computational complexity of the method is given and some discussion for using the method in the battlefield simulation is conducted. In order to estimate how many times faster we can compute problem for finding shortest path in network with n big squares (b-nodes) with relation to problem for finding shortest path in the network with V small squares (s-nodes) acceleration function is defined and optimized.
Źródło:
Journal of Telecommunications and Information Technology; 2003, 4; 47-56
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The idea of using the A* algorithm for route planning an unmanned vehicle “Edredon”
Autorzy:
Naus, K.
Wąż, M.
Powiązania:
https://bibliotekanauki.pl/articles/359690.pdf
Data publikacji:
2013
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
A* algorithm
navigation system
route planning
electronic chart
vehicle „Edredon”
Opis:
This article presents the concept of algorithm A* functioning in a navigation system equipped with electronic navigational chart for autonomous planning the shortest and safest route crossing an offshore unmanned vehicle “Edredon”. The first part describes the general technical architecture and functionality of the vehicle's navigation system. In the second part shows in detail the modules of the system responsible for the planning of the road and how to implement them in the A* algorithm. The third part describes the proper operation of testing whether the A* algorithm in the navigation system, while the task of planning the route of the autonomous vehicle. Final part is a discussion of the results obtained from tests carried out in order to evaluate the applicability of the A* algorithm for route planning in autonomous navigation systems.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2013, 36 (108) z. 2; 143-147
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integrated problem of ship route planning
Autorzy:
Wiśniewski, B.
Medyna, P.
Chomski, J.
Mąka, M.
Powiązania:
https://bibliotekanauki.pl/articles/393824.pdf
Data publikacji:
2011
Wydawca:
Polskie Stowarzyszenie Telematyki Transportu
Tematy:
planowanie trasy statku
ograniczenia
procedury
ship route planning
limitations
procedures
Opis:
Planning and realization of ship route is a complex problem, which consists of elements from different disciplines. It is necessary to take into account: the formal requirements, the organization of traffic in restricted areas, exploitation limitations of the ship; economic issues relating to the costs of fuel and the costs associated with the possible unscheduled reaching the ship at the port of destination and waiting for unloading. It is important to maintain safety conditions related to extreme weather conditions. As the sailing is done on the changing weather conditions, considerable issue is the problem associated with the acquisition, processing and integration of weather data. Issues connected directly with the procedures of route computation are also important - the choice of optimization algorithm, matching the speed characteristics, the state of load. Increasingly being taken into account as restriction of navigation has to be the threat of piracy and terrorism. In the planning and realization of a ship voyage important issue is so called human factor and thus the experience of the master, which will include a decision as to the extent of detail of route planning, taking into account the restrictions importance and eventual adoption or not the proposed route
Źródło:
Archives of Transport System Telematics; 2011, 4, 4; 58-64
1899-8208
Pojawia się w:
Archives of Transport System Telematics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Agent system in control of ship movement
Autorzy:
Łebkowski, A.
Dziedzicki, K.
Powiązania:
https://bibliotekanauki.pl/articles/2069705.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
decision support system
e-navigation
ship passing
route planning
navigation environment
modeling
Opis:
The problem of determining the optimal passing route of the ship between its current position and a remote destination point including the navigation situation occurring during moving along the route has been a subject of many papers and so far has not been definitely solved. In order to determine an optimal and safe route of the ship and its control along it, the author suggests application of an agent system. In the presented agent system three goals are accomplished. The first relies on data acquisition about current navigation situation around the ship and on analysis of possible collision risk. Second target – so far not present in anti-collision systems – relies on automatic negotiations between ships that operate in the same water region or between the coast stations in order to determine the potential area thru which a passing route could have been set. The third one connected to determining the passing route and its autocorrecting depending on current navigation situation.
Źródło:
Journal of Polish Safety and Reliability Association; 2008, 2; 235--239
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Route planning in dynamic graphs with linear changing and preprocessing for speed-up
Planowanie podróży w dynamicznych grafach z uwzględnieniem wstępnie przetworzonego i zmieniającego się liniowo przyspieszenia
Autorzy:
Szűcs, G.
Powiązania:
https://bibliotekanauki.pl/articles/374763.pdf
Data publikacji:
2010
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
planowanie trasy
sieć drogowa
graf dynamiczny
route planning
road network
dynamic graph
Opis:
The goal of this paper is to work out a concept for route planning in a road network, where the costs of roads are not constant, but changing in a linear way. The solution developed is based on the classical Dijkstra's algorithm, which helps to find the route with minimal cost. The new algorithm takes the varying into account in order to find out the best route. This search refers not only to a moment of the departure but to the whole duration of the travel. A speed-up technique has been developed for preprocessing before run time. This preprocessing phase helps to give back the route with minimal cost for the user quickly in run time query. A numerical example has been presented to show the detailed steps of the algorithm and the speed-up technique.
Celem artykułu jest wypracowanie koncepcji planowania tras (trasowania) w sieci drogowej, w której koszty połączeń nie są stałe, lecz zmieniają się w sposób liniowy. Zastosowane rozwiązanie opiera się na klasycznym algorytmie Dijkstra, który umożliwia znajdowanie tras po koszcie minimalnym. Proponowany algorytm uwzględnia dynamiczną różnorodność tras, w celu generowania najkorzystniejszej trasy. Jej poszukiwanie uwzględnia nie tylko momenty rozpoczęcia podróży, ale także czas trwania całej podróży. Technikę przyspieszania (speed-up) rozwinięto, w celu wstępnego przetwarzania przed fazą wykonania. Faza wstępnego przetwarzania pozwala szybciej pozyskać trasę, po koszcie minimalnym dla użytkownika. W artykule zostały zaprezentowane liczne przykłady, w których przedstawiono kolejne kroki algorytmu i techniki przyspieszania.
Źródło:
Transport Problems; 2010, 5, 2; 49-58
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Trajectory Planning with Negotiation for Maritime Collision Avoidance
Autorzy:
Hornauer, S.
Hahn, A.
Blaich, M.
Reuter, J.
Powiązania:
https://bibliotekanauki.pl/articles/116268.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Trajectory Planning
Negotiation
route planning
Collision Avoidance
vessel traffic service (VTS)
Expert Knowledge
COLREGs
Opis:
The problem of vessel collisions or near-collision situations on sea, often caused by human error due to incomplete or overwhelming information, is becoming more and more important with rising maritime traffic. Approaches to supply navigators and Vessel Traffic Services with expert knowledge and suggest trajectories for all vessels to avoid collisions, are often aimed at situations where a single planner guides all vessels with perfect information. In contrast, we suggest a two-part procedure which plans trajectories using a specialised A* and negotiates trajectories until a solution is found, which is acceptable for all vessels. The solution obeys collision avoidance rules, includes a dynamic model of all vessels and negotiates trajectories to optimise globally without a global planner and extensive information disclosure. The procedure combines all components necessary to solve a multi-vessel encounter and is tested currently in simulation and on several test beds. The first results show a fast converging optimisation process which after a few negotiation rounds already produce feasible, collision free trajectories.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2015, 9, 3; 335-341
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ruch drogowy podczas Euro 2012
Autorzy:
Orłowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/365406.pdf
Data publikacji:
2012
Wydawca:
Nowoczesne Budownictwo Inżynieryjne
Tematy:
drogownictwo
Euro 2012
planowanie tras
ruch drogowy
zarządzanie
infrastructures
management
route planning
traffic
Opis:
Planowanie tras, po których będzie się odbywał zwiększony ruch na polskich drogach w czasie trwania turnieju UEFA Euro 2012, przypomina wróżenie nie tyle z fusów na dnie filiżanki, co z osadów na dnie zbiorników z asfaltem używanym do konstrukcji i nawierzchni dróg. Głośne spory między GDDKiA a wykonawcami o przyczynę spękań odkrytych na wielu odcinkach autostrad A2, a także A1 i A4 dodatkowo każą powątpiewać w zasadność przyjmowania tymczasowych rozwiązań, mających umożliwić ruch po .tymczasowo przejezdnych. autostradach.
Źródło:
Nowoczesne Budownictwo Inżynieryjne; 2012, 3; 80-81
1734-6681
Pojawia się w:
Nowoczesne Budownictwo Inżynieryjne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prediction of ship's speed through ground using the previous voyage's drift speed
Autorzy:
Yamane, D.
Kano, T.
Powiązania:
https://bibliotekanauki.pl/articles/24201461.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
machine learning
weather routing
ship's speed estimation
drift speed
algorithm
route planning
tidal current
Opis:
In recent years, 'weather routing' has 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. Because 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 data 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 operate on the same route, such as ferries. Experimental results showed that this method improves the prediction performance of ship’s speed through ground.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 1; 129--137
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi-Objective Optimization of Motor Vessel Route
Autorzy:
Marie, S.
Courteille, E.
Powiązania:
https://bibliotekanauki.pl/articles/117604.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
route planning
Optimization of Vessel Route
multi-objective optimization
Motor Vessel
Optimal Route
Multi-Objective Genetic Algorithm (MOGA)
Bézier Curve
MATLAB
Opis:
This paper presents an original method that allows computation of the optimal route of a motor vessel by minimizing its fuel consumption. The proposed method is based on a new and efficient meshing procedure that is used to define a set of possible routes. A consumption prediction tool has been developed in order to estimate the fuel consumption along a given trajectory. The consumption model involves the effects of the meteorological conditions, the shape of the hull and the power train characteristics. Pareto-optimization with a Multi-Objective Genetic Algorithm (MOGA) is taken as a framework for the definition and the solution of the multi-objective optimization problem addressed. The final goal of this study is to provide a decision helping tool giving the route that minimizes the fuel consumption in a limited or optimum time.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 2; 133-141
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of the 1-2-3 Rule for Calculations of a Vessel’s Route Using Evolutionary Algorithms
Autorzy:
Wiśniewski, B.
Medyna, P.
Chomski, J.
Powiązania:
https://bibliotekanauki.pl/articles/116117.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
tropical cyclones avoidance
Fuzzy Domain
Weather Navigation
Tropical Cyclones
1-2-3 Rule
vessels route
evolutionary algorithms
route planning
Opis:
An example is shown of the 1-2-3 rule application for calculations to determine a route avoiding tropical cyclones. The dynamic programming used is based on regularly received weather reports containing present and forecast data on tropical cyclones. The results were compared with the post factum calculated route which utilized only weather analyses concerning the relevant moments of the voyage and with routes calculated using the cyclone fuzzy domain as an area dangerous to navigation. The calculations were made in the evolutionary algorithms environment.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 2; 143-146
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multicriteria Optimisation in Weather Routing
Autorzy:
Szłapczynska, J.
Smierzchalski, R.
Powiązania:
https://bibliotekanauki.pl/articles/115971.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Multicriteria Optimisation
Weather Routing
route planning
Weather Navigation
Fuzzy TOPSIS
Strength Pareto Evolutionary Algorithm (SPEA)
Multicriteria Ranking Method
Isochrone Route
Opis:
The paper presents a new weather routing solution fully supporting multicriteria optimisation process of route finding. The solution incorporates two multicriteria optimisation methods, namely multicriteria evolutionary algorithm (SPEA) and multicriteria ranking method (Fuzzy TOPSIS). The paper focuses on presenting the proposed multicriteria evolutionary weather routing algorithm (MEWRA). Furthermore, it includes some experiment results together with a short description of the assumed ship model.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 4; 393-400
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
User habits and multimodal route planning
Autorzy:
Katona, G.
Juhasz, J.
Powiązania:
https://bibliotekanauki.pl/articles/112017.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
user habits
multimodal route planning
Ant Colony algorithm
planowanie trasy
algorytm mrówkowy
nawyki komunikacyjne
wymagania użytkowników
Opis:
The results of route planning researches are monitored by logistic and automotive industries. The economic aspects of the cost saving are in the focus of the attention. An optimal route could cause time or fuel savings. An effective driving or an optimal route is a good basis to achieve an economical aim. Moreover the spread of new automotive solutions especially in case of electric cars the optimisation has particular significance regarding the limited battery storage. Additionally the autonomous car development could not be neglected. As a result the society could expect safer roads, better space usage and effective resource management. Nevertheless the requirements of users are extremely diverse, which is not negligible. Supporting these aims, in this paper the connection between the multimodal route planning and the user requirements are investigated. The examination is focused to a sensitivity analysis and a survey to evaluate the data and support the settings of a user habit effect to the final route.
Źródło:
Production Engineering Archives; 2017, 16; 22-27
2353-5156
2353-7779
Pojawia się w:
Production Engineering Archives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efficiency of a voluntary speed reduction algorithm for a ship’s great circle sailing
Autorzy:
Wang, H.
Mao, W.
Eriksson, L.
Powiązania:
https://bibliotekanauki.pl/articles/117253.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
great circle sailing
algorithm, ship’s sailing route
route planning
Dynamic Programming (DP)
great circle route
great circle (orthodrome)
Estimated Time of Arrival (ETA)
Opis:
The great-circle is the shortest distance between two points on the surface of the earth. When planning a ship’s sailing route (waypoints and forward speeds) for a specific voyage, the great circle route is commonly considered as a reference route, especially for ocean-crossing seaborne transport. During the planning process, the upcoming sea weather condition is one of the most important factors affecting the ship’s route optimization/planning results. To avoid encountering harsh conditions, conventional routing optimization algorithms, such as Isochrone method and Dynamic Programming method, have been developed/implemented to schedule a ship’s optimal routes by selecting waypoints around the great circle reference route based on the ship’s operational performances at sea. Due to large uncertainties in sea weather forecast that used as inputs of these optimization algorithms, the optimized routes may have worse performances than the traditional great circle sailing. In addition, some shipping companies are still sailing in or making charting contracts based on the great circle routes. Therefore, in this study, a new optimization algorithm is proposed to consider the voluntary speed reduction with optimal speed configuration along the great circle course. The efficiency of this method is investigated by comparing these two methods for optimal route planning with respect to ETA and minimum fuel consumption. A container ship sailing in the North Atlantic with full-scale performance measurements are employed as the case study vessels for the comparison.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 2; 301-308
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Planned Route Based Negotiation for Collision Avoidance Between Vessels
Autorzy:
Hu, Q.
Yang, C.
Cheng, H.
Xiao, B.
Powiązania:
https://bibliotekanauki.pl/articles/116234.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
anticollision
Collision Situation
COLREGs
Collision Avoidance System
Collision Avoidance Decision Making
route planning
Computer Simulation
Negotiation
Opis:
Automatic vessel collision-avoidance systems have been studied in the fields of artificial intelligence and navigation for decades. And to facilitate automatic collision-avoidance decision-making in two-vessel-encounter situation, several expert and fuzzy expert systems have been developed. However, none of them can negotiate with each other as seafarers usually do when they intend to make a harmonious and more economic overall plan of collision avoidance in the COLREGS-COST-HIGH situations where collision avoidance following the International Regulations for Preventing Collisions at Sea(COLREGS) costs too much. A negotiation framework was put forward in our previous research to enable vessels to negotiate for optimizing collision avoidance in the COLREGS-COST-HIGH situations at open sea. In this paper, the negotiation framework is improved by considering the planned route of both vessels. The simulation results show that more economic overall plan of collision avoidance may be achieved by the improved framework when one or both parties deviate from their planed route or are approaching their next way points.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2008, 2, 4; 363-368
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sailing vessel routing considering safety zone and penalty time for altering course
Autorzy:
Życzkowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/116895.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
ships manoeuvering
sailing vessels
safety zone
penalty time
altering course
weather forecast
route planning
path finding
Opis:
In this paper we introduce new model for simulation sea vessel routing. Besides a vessel types (polar diagram) and weather forecast, travel security and the number of maneuvers are considered. Based on these data both the minimal travelling costs and the minimal processing time are found for different vessels and different routes. To test our model the applications SailingAssistance wad improved. The obtained results shows that we can obtain quite acceptable results.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 2; 235-240
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modyfikacje algorytmów planowania trasy uwzględniające ograniczenia czasowe i odległościowe
Modification of path-finding algorithms introducing time and distance limitations
Autorzy:
Wolanin, Mateusz
Korniszuk, Klaudia
Smołka, Jakub
Powiązania:
https://bibliotekanauki.pl/articles/98100.pdf
Data publikacji:
2019
Wydawca:
Politechnika Lubelska. Instytut Informatyki
Tematy:
wyznaczanie trasy
rower miejski
algorytm A*
algorytm BFS
route planning
bike sharing system
algorithm A*
algorithm BFS
Opis:
Artykuł przedstawia modyfikacje algorytmów wyszukiwania ścieżki w grafie mające na celu wprowadzenie ograniczeń: czasowych lub odległościowych do znalezionej trasy. Zmodyfikowane zostały dwa algorytmy: A* oraz BFS. Zaproponowana została również modyfikacja algorytmu A*, która łączy atuty tych dwóch algorytmów – wygenerowanie najkrótszych tras o jak najmniejszej liczbie wierzchołków. Zmodyfikowane algorytmy umożliwią stworzenie aplikacji pozwalającej na łatwiejsze i bardziej oszczędne poruszanie się z wykorzystaniem usług typu rowerem miejski.
This paper describes modifications of path-finding algorithms. The modifications add time and distance constraints to generated paths. A* and BFS algorithms are modified. Additionally, A* algorithm modification which combines the advantages (generating the shortest routes with the smallest number of vertices) of A* and BFS is presented.. This allows for creating a route planning app that enables users of bike sharing services to travel more easily and economically.
Źródło:
Journal of Computer Sciences Institute; 2019, 10; 18-23
2544-0764
Pojawia się w:
Journal of Computer Sciences Institute
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Accuracy of Sea Ice Data from Remote Sensing Methods, its Impact on Safe Speed Determination and Planning of Voyage in Ice-Covered Areas
Autorzy:
Pastusiak, T.
Powiązania:
https://bibliotekanauki.pl/articles/116005.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Ice-Covered Area
Sea Ice Data
Remote Sensing Method
Safe Speed Determination
Route Planning
Voyage Planning
Ice Navigation
Polar Navigation
Opis:
The data related to ice floe concentration and ice thickness were analysed. Sources of data have been verified by visual observation and by comparison in between information from different remote sensing sources. The results of this work exceeded initial expectations. The discrepancies of the information provided by various data sources result from the error of the measurement method, which can be as high as 15% of the concentration of ice floes. It should also be borne in mind that the more generalized information about the state of the ice cover, the lower probability of detection of ice floe patches of a high concentration and spatial extent. Each vessel that is planning voyage in ice should take into consideration inaccurate estimation of concentration and thickness of ice floes received by means of satellite remote sensing methods. The method of determining permissible speed of various ice class vessel in ice on basis of safe speed graph for the icebreaker was developed. A well-defined equation approximates relationship between speed of the icebreaker and the vessels of specified ice classes. Average distance of 24.1 Nm from sea ice extent line was related to all analysed lines representing 30-40% ice floe concentration (IUP product excluded) and 30.6 Nm for analysed lines representing 70-81-91% ice floe concentration. The maximal average distance of the furthest analysed line (IUP product excluded) was equal 37.2 Nm. The average standard deviation of that results was equal 8.3 Nm only. Average distances of analysed lines from sea ice extent line to maximal ice data values were found as follow: 8.4 Nm (23%) for NSIDC-CCAR ice age, 12.3 Nm (33%) for minimal distance of 30-40% ice concentration, 15.4 Nm (41%) for OSISAF ice type “ambiguous” zone from Open Water side, 25 Nm (67%) for minimal distance of 70-81-91% ice concentration, 26.6 Nm (72%) for OSISAF ice type “ambiguous” zone from 1st year ice age side, 35.9 Nm (97%) for maximal distance of 30-40% ice concentration and 36.3 Nm (98%) for maximal distance of 70-81-91% ice concentration data. In the parentheses placed relative distances from first ice data including IUP 40% concentration isolines. Sea ice extent of most of available data sources delineated the edge of “area to be avoided” for vessels of ice class lower than L1. Estimated average speed of L3 ice class vessel was from 3.3 knots till 5.2 knots at average speed 5.0 knots. For L1 ice class vessel estimated average speed was from 6.5 knots till 12.1 knots at average speed 9.7 knots. Relative standard deviation of averaged speed for both ice class vessels was equal 18%. The highest relative deviations were found up to 50% below the average speed value. The highest relative deviations upward were equal 22%. Above speeds for L3 and L1 ice class vessels corresponded well with average technical speed of “Norilsk SA-15” ULA class vessel equal 12,6 knots. The results of the work were not intended to be used for decision making on spot - “on-scene” - during direct guiding vessel in ice. They should be useful for initial voyage planning to allow decision-makers to identify the best freely available data sources for considered voyage and vessel of defined ice class; to understand advantages and limitations of available in the internet data sources; to estimate vessel’s maximal safe speed in encountered ice conditions, to estimate spatial distribution and correlations in between various levels of sea ice concentration and thickness. All above data allow estimate voyage time that is, in addition to fuel consumption, basic criterion of maritime transport economics.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2016, 10, 2; 229-248
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wyznaczanie ryzyka planowania trasy przejazdu z wykorzystaniem modelu probabilistycznego
Determination of risk planning a route with the use of a probability model
Autorzy:
Topolska, K.
Powiązania:
https://bibliotekanauki.pl/articles/312479.pdf
Data publikacji:
2018
Wydawca:
Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:
planowanie transportu
planowanie trasy
szacowanie ryzyka
metody probabilistyczne
system telematyczny
transport planning
route planning
risk assessment
probabilistic methods
telematic system
Opis:
Niniejsza praca ma na celu przybliżyć pojęcia z zakresu metod probabilistycznych w zadaniu planowania trasy przejazdu w systemach telematycznych. W zadaniu klasyfikacji zastosowano model bazujący na probabilistycznym klasyfikatorze Bayesa i funkcji gęstości prawdopodobieństwa. W części pierwszej pracy zostały opisane problemy planowania tras przejazdów we współczesnych systemach telematycznych. Część druga zawiera teoretyczne podstawy klasyfikatorów bazujących na twardych metodach matematycznych. Aby taki model miał jakikolwiek sens, należy uwzględnić pomniejsze rodzaje ryzyka związane z procesem transportu. Artykuł prezentuje metodę doboru najbardziej optymalnych parametrów do zadania planowania transportu. Tutaj niewątpliwie autor artykułu zwraca uwagę na metodę redukcji zmiennych niezbędnych do planowania z zastosowaniem metody analizy czynnikowej składowych głównych z metoda rotacji czynników Varimax znormalizowaną metodą Kaisera dla cech ilościowych. Rozdział trzeci poświęcony jest procesowi planowania tras przejazdu, ryzyku jakie jest z tym planowaniem związane.
This paper aims to familiarize readers with notions related to probabilistic methods used for planning routes in telematics systems. The classification task made use of the model based on probabilistic Bayes’ classifier and the probability density function. The first part of the paper describes problems with planning routing in contemporary telematics systems. The second part covers a theoretical basis of classifiers based on hard mathematical methods. If such a model is to make sense, it should account for smaller kinds of risk related to a transport process. This paper presents a method of selecting the most optimal parameters in transport planning. Its author draws attention to the variable reduction method necessary for planning supported by a factor analysis of principal components together with Varimax rotation normalized with Kaiser’s method for quantitative features. The third part is devoted to the process of planning routes and the related risk.
Źródło:
Autobusy : technika, eksploatacja, systemy transportowe; 2018, 19, 6; 266-270, CD
1509-5878
2450-7725
Pojawia się w:
Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of satellite AIS Data to derive weather judging criteria for voyage route selection
Autorzy:
Fujii, M.
Hashimoto, H.
Taniguchi, Y.
Powiązania:
https://bibliotekanauki.pl/articles/116513.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Automatic Identification System (AIS)
AIS Data
voyage route selection
route planning
satellite AIS Data
North Pacific Ocean
weather forecast
decision-making criteria
Opis:
The operational limitations are discussed at the IMO as a part of the second generation intact stability criteria. Since it is a first attempt to introduce operational efforts into safety regulations, comprehensive discussions are necessary to realize practically acceptable ones. Therefore this study investigates actual navigation routes of container ships and pure car carriers in the trans-North Pacific Ocean in winter, because they are prone to suffer significant parametric roll which is one of stability failure modes. Firstly, interviews are made to shipmasters who have experiences to have operated the subject ships to identify major elements for route selection in the North Pacific Ocean. Secondly, sufficient number of actual navigation records is collected from Satellite AIS data to derive the weather criteria for the route selection in severe weather condition. Finally, shipmaster’s on-board decision-making criteria are discussed by analysing the ship tracking data and weather data.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 2; 271-277
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Methods of Determining the Safe Ship Trajectory
Autorzy:
Lisowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/116647.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
ship route
Safe Ship Trajectory
route planning
Determining the Safe Ship Trajectory
ship trajectory
Artificial Neural Network (ANN)
game theory
computer simulation
Opis:
The paper describes six methods of optimal and game theory and artificial neural network for synthesis of safe control in collision situations at sea. The application of optimal and game control algorithms to determine the own ship safe trajectory during the passing of other encountered ships in good and restricted visibility at sea is presented. The comparison of the safe ship control in collision situation: multi-step matrix non-cooperative and cooperative games, multi-stage positional non-cooperative and cooperative games have been introduced. The considerations have been illustrated with examples of computer simulation of the algorithms to determine safe of own ship trajectories in a navigational situation during passing of eight met ships.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2016, 10, 2; 223-228
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Algorithms and calculation scheme for planning the way of movement of trajectory point during maneuvering for anchoring
Autorzy:
Surinov, I.
Powiązania:
https://bibliotekanauki.pl/articles/2063956.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
algorithms for planning ships trajectories
planning the way of movement
algorithms
maneuvering for anchoring
route planning
ship’s trajectory planning
algorithms for ships trajectories
trajectory planning
Opis:
The analysis of the historical aspect of the development of the maneuvering during anchoring shows that during the movement there is no time to control the position by technical means, due to the speed of the process of changing the parameters of movement. The main purpose of this research is to modify the methodological basis for the preparation of flight planning during anchoring with increased accuracy to determine the coordinates along which the ship will move. The methodology of this work is based on the calculation of trajectory points of the path in combination with the method of segments on the map using the characteristics of the maneuverability of the vessel. The method is based on determining the coordinate matrices of rectilinear and curvilinear sections through which the vessel passes during maneuvering for anchoring. The calculation program is developed in Excel, and allows without the help of a micro calculator that takes into account the maneuverability of the vessel in the automatic system. Thus, the control of the center of gravity of the vessel relative to a given path line is performed. A high-precision system for automatic determination of planned coordinates by trajectory points on track and traffic control during anchoring has been developed, which is based on recently developed algorithms, calculation schemes and methods at the Maritime University, which are based on the latest meaningful models of high-precision planning movement on them. This approach automates the process of controlling safe traffic, including the use of decision support systems, including stranding prevention and collisions with other vessels. The results of the research can be used on a ship for automated planning of coordinates on waypoints and control of traffic on them for safe maneuvering, as well as for training navigators on specialized simulators to perform trajectory planning, including limited conditions.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 3; 629--638
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Graph Searching Algorithms for Route Planning in Inland Navigation
Autorzy:
Kazimierski, W.
Sawczak, A.
Wawrzyniak, N.
Powiązania:
https://bibliotekanauki.pl/articles/117106.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Inland Navigation
route planning
Graph Searching Algorithms
Inland Waters
Nautical Spatial Data
Raster Data
vector data
Dijkstra’s Algorithm
Opis:
Route planning is one of the core functionalities of modern navigational systems also in inland waters. There is a possibility of at least partial automation of this process with the use of graph searching algorithms. Main problem here is to create a graph based on nautical spatial data. The paper presents research on examining dif-ferent graph searching methods for inland waters. The concept of using combined approach for vector and ras-ter data is given, followed by research results for raster data.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2015, 9, 2; 281-286
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the Fuel Saving Operation for Coastal Merchant Ships using Weather Routing
Autorzy:
Takashima, K.
Mezaoui, B.
Shoji, R.
Powiązania:
https://bibliotekanauki.pl/articles/116404.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Weather Routing
route planning
Weather Navigation
Coastal Merchant Ship
Fuel Saving Operation
Dijkstra’s Algorithm
Simulation Study
Fuel Consumption
Opis:
It is well known that Weather Routing is one of the effective ship operation methods to reduce fuel consumption and many studies have been conducted to develop the effective calculation methods. However, most studies were performed focusing on the ocean going ships, and there were few studies made for coastal ships. The authors propose a minimum fuel route calculation method for coastal ships that use the precise forecasted environmental data and the propulsion performance data of the ship on actual seas. In the proposed method, we use the Dijkstra’s algorithm to calculate an optimum minimum fuel route suitable for coastal ships. Simulation study was carried out to evaluate the effectiveness of the proposed method using two coastal ships. As the result of study, the authors confirmed that the proposed calculation method is effective for fuel consumption reduction and is applicable for the operation of coastal merchant ships.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 4; 401-406
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ship route planning using historical trajectories derived from AIS Data
Autorzy:
He, Y. K.
Zhang, D.
Zhang, J. F.
Zhang, M. Y.
Li, T. W.
Powiązania:
https://bibliotekanauki.pl/articles/116536.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
AIS Data
Automatic Identification System (AIS)
route planning
historical trajectories
AIS messages
marine traffic
Dijkstra algorithm
ant colony algorithm
Opis:
Ship route planning is one of the key issues in enhancing traffic safety and efficiency. Many route planning methods have been developed, but most of them are based on the information from charts. This paper proposes a method to generate shipping routes based on historical ship tracks. The ship's historical route information was obtained by processing the AIS data. From which the ship turning point was extracted and clustered as nodes. The ant colony algorithm was used to generate the optimize route. The ship AIS data of the Three Gorges dam area was selected as a case study. The ships’ optimized route was generated, and further compared with the actual ship's navigation trajectory. The results indicate that there is space of improvement for some of the trajectories, especially near the turning areas.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 1; 69-76
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi-criteria ACO-based algorithm for ship’s trajectory planning
Autorzy:
Lazarowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/116548.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
colregs
ships manoeuvering
Ant Colony Optimization (ACO)
ship’s trajectory planning
route planning
multi-criteria ACO-based algorithm
guidance
navigation and control (GNC)
ARPA
Opis:
The paper presents a new approach for solving a path planning problem for ships in the environment with static and dynamic obstacles. The algorithm utilizes a heuristic method, classified to the group of Swarm Intelligence approaches, called the Ant Colony Optimization. The method is inspired by a collective behaviour of ant colonies. A group of agents - artificial ants searches through the solution space in order to find a safe, optimal trajectory for a ship. The problem is considered as a multi-criteria optimization task. The criteria taken into account during problem solving are: path safety, path length, the International Regulations for Preventing Collisions at Sea (COLREGs) compliance and path smoothness. The paper includes the description of the new multi-criteria ACO-based algorithm along with the presentation and discussion of simulation tests results.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 1; 31-36
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cost and Safety Aspects of Using Electric and Hybrid Vehicles in Local Food Supply Chain
Autorzy:
Lisec, Andrej
Lisec, Klemen
Obrecht, Matevž
Powiązania:
https://bibliotekanauki.pl/articles/111982.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
electric vehicles
food supply
route planning
alternative fueled vehicles
pojazd elektryczny
pojazd hybrydowy
dostawa żywności
łańcuch dostaw żywności
planowanie trasy
Opis:
Integrating electric vehicles in a supply chain and distribution is a viable option when special conditions such as short distance road distribution and environmental considerations as well as small amounts of goods enabling delivery with delivery vans are met. In this paper, possibility of investment in electric vehicles for distribution of local food will be examined and analysed. Safety concerns in electric vehicles will also be addressed and accident consequences and vehicle safety will be analysed and compared with conventional vehicles that use internal combustion engines.
Źródło:
Production Engineering Archives; 2019, 25; 35-38
2353-5156
2353-7779
Pojawia się w:
Production Engineering Archives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Method of Path Selection in the Graph - Case Study
Autorzy:
Neumann, T.
Powiązania:
https://bibliotekanauki.pl/articles/116904.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Path Selection
Method of Path Selection
graph theory
Dijkstra algorithm
route planning
Cutting-Edge Thinking Mechanisms
New Paths Searching
shortest path
Opis:
This paper presents a different perspective on the Dijkstra algorithm. In this paper algorithm will be used in the further analysis to find additional paths between nodes in the maritime sector. In many cases, the best solution for a single criterion is not sufficient. I would be the search for more effective solutions of the starting point to use for subsequent analysis or decision making by the captain of the ship. Using cutting-edge thinking mechanisms, it is possible to create a decision support system based on known Dijkstra's algorithm.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8 no. 4; 557-562
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Intellectual innovative system for personalized suport of tourist trips
Autorzy:
Pasichnyk, V.
Savchuk, V.
Powiązania:
https://bibliotekanauki.pl/articles/410636.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
tourist mobile application
tourism
location-based services
location-based recommendations
travel guide
route planning
navigation
indoor navigation
global positioning system
mobile technology
Opis:
The main goal of the article is generalization of intellectual innovation project of information system “Mobile information assistant of the tourist” (MIAT), which provide a full-featured integrated information and technological support to tourists during planning and implementation stages of his journey using a wide range of modern information technologies. About two-thirds of today's tourists use information technology to plan and support their journey, while a significant number of them use mobile computer and telecommunications devices. The result of the research made by the group of researchers of the University “Lviv Polytechnic” is the project of innovative intelligent system “Mobile information assistant of a tourist” oriented on IT support of the user in planning and realization of his/her tourist trip in accordance with information technology slogan “EVERYTHING! HERE! IMMEDIATELY!!!”.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2016, 5, 1; 79-87
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modern tendention in the use of gps technology in tourism industry
Autorzy:
Savchuk, V.
Pasichnyk, V.
Powiązania:
https://bibliotekanauki.pl/articles/411177.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
GPS
Global Positioning System
mobile technology
tourist
tourism
location-based services
mobile application
location-based recommendations
travel guide
route planning
navigation
indoor navigation
Opis:
The article is devoted to the analysis of the possibilities of GPS-technology (Global Positioning System) in the tourism industry. The study is devoted to the identification and analysis of functionality of mobile computing devices equipped with GPS receiver in tourism industry, the methods and means of their implementation, building on this basis a mobile information technology for tourist support at all stages of his journey. To achieve the goal a number of mobile information systems using data GPS, methods and means of their implementation, a comparative analysis of current cartographic services that are used in the developing of mobile information technology applications for tourist are analyzed. The study outlines the place of GPS-technology in the "Mobile tourist information assistant" system, and the role of Google Maps services for information technology support and implementation of the main tourist features in mentioned mobile information system.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2015, 4, 3; 65-72
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the regenerative braking process for the urban traffic conditions
Autorzy:
Kropiwnicki, Jacek
Furmanek, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/132918.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
regenerative braking
real traffic conditions
hybrid vehicles
electric vehicles
energy consumption
route planning
hamowanie odzyskowe
rzeczywiste warunki ruchu
pojazdy hybrydowe
pojazdy elektryczne
zużycie energii
planowanie trasy
Opis:
In a regular drive system, with an internal combustion engine, vehicle braking is connected with the unproductive dissipation of kinetic and potential energy accumulated in the mass of the vehicle into the environment. This energy can constitute up to 70% of the energy used to drive a vehicle under urban conditions. Its recovery and reuse is one of the basic advantages of hybrid and electric vehicles. Modern traffic management systems as well as navigation systems should take into account the possibility of the energy recovery in the process of regenerative braking. For this purpose, a model of a regenerative braking process may be helpful, which on the one hand will enable to provide information on how traffic conditions will affect the amount of energy dissipated (wasted) into the atmosphere, on the other hand will help to optimize the route of vehicles with regenerative braking systems. This work contains an analysis of the process of the regenerative braking for the urban traffic conditions registered in Gdańsk. A model was also presented that allows calculating the amount of energy available from the braking process depending on the proposed variables characterizing the vehicle traffic conditions.
Źródło:
Combustion Engines; 2019, 58, 3; 203-207
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation Criteria and Approach to Voyage Planning in Ice. Verification on the Example of German Ship Activity During the Second World War
Autorzy:
Pastusiak, T.
Powiązania:
https://bibliotekanauki.pl/articles/320653.pdf
Data publikacji:
2018
Wydawca:
Polskie Forum Nawigacyjne
Tematy:
Northern Sea Route
ice navigation
voyage planning
Opis:
Vessels designed for navigation in ice can perform voyage with the assistance of icebreaker in the navigation season in case an ice cover area is less than 20%. Whereas the same vessels could carry out successfully completed voyage through the NSR with intensive icebreaker help at the ice-covered area lower than 42%. Navigation of the same vessel at ice covered area above 80% is possible with intensive icebreaker help, but it threatens to damage the hull, rudder or propeller. Excessive generalization of data analyzed may cause to wrong, even opposite conclusions. Using only basic statistical information in the form of average values and standard deviation may be not sufficient for the purpose of vessel’s voyage planning in areas covered with ice. Much more opportunities for the assessment of navigation in ice covered regions provides cumulative distribution, which should be related to the time and geographical space distribution. It allows to determine the duration of time window for given area covered with ice in a particular region and predetermined probability of its occurrence. It is thus possible to plan approximate date of departure and duration of voyage for assumed safety criteria. Also, it is possible to plan a number of consecutive voyages in a navigation season. Mathematical approach to voyage planning in ice based on a cumulative distribution is presented in the paper. It allows creation of an advisory computer application to support decision-making by the commander of a vessel. It will reduce the human factor in data processing and reduce possibility of making a mistake. By this way, can be enhanced the safety of maritime transport. Novell approach is verified on the example of historical data about the German Navy ship activity during the Second World War.
W 1940 Roku na Północnej Drodze Morskiej (PDM) panowały ekstremalnie lekkie warunki lodowe w stosunku do kilku lat wcześniejszych i późniejszych. Najniższa powierzchnia pokrywy lodowej w regionach PDM w latach 1940-1945 występowała średnio w pierwszej dekadzie września. Statki przeznaczone do żeglugi w lodach mogą realizować podróże ze wsparciem lodołamaczy w sezonie nawigacyjnym w przypadku, gdy powierzchnia pokrycia poszczególnych mórz lodem jest mniejsza niż 20%. Nawigacja tego samego statku w rejonach PDM pokrytych lodem powyżej 80% jest możliwa przy intensywnej pomocy lodołamacza, ale grozi uszkodzeniem kadłuba, steru lub śruby napędowej. Do błędnych a nawet przeciwnych wniosków może prowadzić nadmierne uogólnienie analizowanych danych. Wykorzystanie jedynie podstawowych informacji statystycznych w postaci wartości średnich i odchyleń standardowych może być niewystarczające do celów planowania podróży statku na akwenach pokrytych lodem. Znacznie więcej możliwości dla oceny warunków żeglugi w regionach pokrytych lodem zapewnia rozkład skumulowany, który powinien być związany z rozkładem czasowym i rozkładem geograficznym. Rozkład skumulowany pozwala określić czas trwania okienka czasowego występowania określonych warunków żeglugi lodowej statków dla określonej powierzchni pokrycia danego regionu lodem i założonego prawdopodobieństwa o wystąpienia takich warunków. W ten sposób można zaplanować przybliżoną datę początku podróży i czas trwania podróży dla przyjętych kryteriów bezpieczeństwa. Możliwe jest również zaplanowanie szeregu kolejnych podróży w jednym sezonie nawigacyjnym. Przedstawione matematyczne podejście do planowania podróży w lodzie oparte na rozkładzie skumulowanym pozwala na stworzenie doradczej aplikacji komputerowej wspierającej proces decyzyjny osoby dowodzącej statkiem. Zmniejszy to udział czynnika ludzkiego w przetwarzaniu danych i ograniczy możliwość popełnienia błędu. W ten sposób będzie można zwiększyć bezpieczeństwo transportu morskiego.
Źródło:
Annual of Navigation; 2018, 25; 5-26
1640-8632
Pojawia się w:
Annual of Navigation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of Bon Voyage 7.0 (AWT) to programming of an ocean route of post-Panamax container vessel in transpacific voyage Seattle – Pusan 26.08.2015, 1600UTC – 05.09.2015, 2100UTC
Autorzy:
Szymański, M.
Wiśniewski, B.
Powiązania:
https://bibliotekanauki.pl/articles/135418.pdf
Data publikacji:
2016
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
ocean voyage route optimization
ocean voyage route programming
voyage planning
Bon Voyage system
fuel criterion
ECA
Opis:
The results of testing the Bon Voyage system for an ocean voyage are presented in this paper. The main assumptions of testing were: ETD – 26.08.2016 and ETA – 05.09.2016, as established by the owner. All the data have been obtained from an actual voyage of a post-Panamax shipping container through the North Pacific. Testing was repeated again after completion of the voyage (post-voyage analysis). The data indicate that improved results with respect to fuel consumption could have been achieved using a different moment of second stage testing. Possible problems at planning, programming, and optimizing of the route leading through the ECA (Emission Control Area) zones with the use of onboard routing systems are also presented.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 48 (120); 182-186
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Planning of the interregional tourist route in the Urals
Autorzy:
Zyrianov, Aleksandr I.
Zyrianova, Inna S.
Powiązania:
https://bibliotekanauki.pl/articles/2054599.pdf
Data publikacji:
2021-06-30
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
tourism
tourist itinerary
interregional routes
travel planning
route design
tourist cruises
Russia
Ural
Opis:
The article aims to attract the attention of geographers to the development of technology for the design of tourist routes. The world and Russian experience of designing long interregional tourist routes is considered. The au- thors’ approaches to route design are illustrated by the example of the Urals. Interregional tourist routes in Russia are actively developed with the support of the government. They are initiated by interacting regions and especially federal districts. Interregional routes are tours covering several adjacent regions or regions that are close not territorially, but thematically in tourist aspects. Such routes are quite different, but they have mainly cultural and informative goals as well as an excursion, transport and sometimes cruise style. Among all the interregional routes, the ‘Golden Ring’ and the ‘Volga-Kama’ river cruises are exemplary, among which the ‘Moskovskaya krugosvetka’ stands out due to the uniqueness of the ring shape of the route. The geographic features of the Urals are at the heart of the logical decisions for the preparation of the interregional tourist project ’The Great Ural Route’. The Urals have attractive, image, logistic and other opportunities for organising a large tourist route. A route should be developed for residents of the country and foreign guests, which will introduce the most striking and characteristic objects of the macro region as a whole. Moreover, the annular shape of the route is most preferred. It is advisable to lay the route in most of the Ural regions. It should include the main cities, landscapes of different natural zones, the most significant excursion sites and distinctive territories. Geographic route design technologies make it possible to make them relevant for a long time.
Źródło:
Quaestiones Geographicae; 2021, 40, 2; 109-119
0137-477X
2081-6383
Pojawia się w:
Quaestiones Geographicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Global and local planning of ship route using MATLAB and Simulink
Autorzy:
Kupraty, O.
Tomara, M.
Powiązania:
https://bibliotekanauki.pl/articles/24201406.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
safety at sea
global planning
local planning
marine autonomous surface ship
device control
Scenario Matrix
path matrix
route matrix
Opis:
This article considers a new method of decomposing the ship route into global and local planning using MATLAB and Simulink developed by the authors. The authors propose to create a program code in MATLAB and operate it into Simulink. Wherein, the corrective coefficients were written in MATLAB. Such trajectories are constructed as a set of points, collected into the special matrix. In determining of the angle value of the rudder was used the ship’s turning ability such as: high (HG), middle (MD) or low (LW) with regard to passage area. Moreover, in the article were analyzed and calculated the ship rudder effectiveness for Proportional-Integral-Derivative (PID) control. The paper is devoted to the problem of safety navigation. First of all is the task of planning the path: the trajectory of the vessel’s movement in the local water area. The purpose of planning the vessel trajectory in the local water area is to ensure navigation safety due to marine traffic and environmental conditions. One of the tasks of the present work is controlling following a desired trajectory. The article notes affect of the vessel motion deviation into control process.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 1; 205--215
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The time window for vessels without ice strengthening on the Northern Sea Route
Autorzy:
Pastusiak, T.
Powiązania:
https://bibliotekanauki.pl/articles/320510.pdf
Data publikacji:
2016
Wydawca:
Polskie Forum Nawigacyjne
Tematy:
Northern Sea Route
ice-free time frame
vessel voyage planning
sea transport
economical efficiency
Opis:
The work discusses possibility to make transit voyages of vessels without ice strengthening on the Northern Sea Route (NSR). Exist many uncertainties for it. They are related to hydrometeorological conditions, mostly to ice cover on the Russian Arctic. Ice conditions are under dynamic changes in time and space. Is hard to precisely predict ice conditions now, in the time range of one month and so on. Statistical historical data of daily changes same like yearly changes show a considerable scatter of the data. The author analyzed number of ice-free days of particular seas of the NSR in the latest eight years. The results of this work may be used for estimation of time frame (time window) for transport of cargo on the NSR by means of vessels without ice strengthening. The statistical presentation of ice-free days data was used in the work to develop decision supporting method related to planning vessel voyage including ice-free time frame on particular seas of the Northern Sea Route.
W artykule omówiono możliwości tranzytu statków bez wzmocnień lodowych kadłuba północną drogą morską (PDM). Najwięcej niepewności dotyczy warunków hydrometeorologicznych, głównie pokrywy lodowej w rosyjskiej części Arktyki, która podlega dynamicznym zmianom w czasie i przestrzeni. Trudno przewidzieć bieżące warunki lodowe, w przedziale jednego miesiąca, tym bardziej zaś z dużym wyprzedzeniem. Statystyczne dane historyczne dziennych zmian oraz zmian rocznych wykazują znaczny rozrzut wartości. Autor przeanalizował liczbę dni bezlodowych na poszczególnych morzach PDM w ostatnich ośmiu latach — od 2008 do 2015 roku. Wyniki te mogą być wykorzystane do szacowania przedziału czasu (okna czasowego) dla przewozu ładunków północną drogą morską statkami bez wzmocnień lodowych kadłuba. Statystyczne zależności dni wolnych od lodu zostały wykorzystane do opracowania metody wspierającej decyzje związane z planowaniem podróży statku z uwzględnieniem okna czasowego żeglugi bezlodowej na poszczególnych morzach PDM.
Źródło:
Annual of Navigation; 2016, 23; 103-120
1640-8632
Pojawia się w:
Annual of Navigation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Navigation infrastructure of the Northern Sea Route
Autorzy:
Pastusiak, T.
Powiązania:
https://bibliotekanauki.pl/articles/135311.pdf
Data publikacji:
2015
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
Northern Sea Route
navigation infrastructure
voyage planning
Aids to Navigation
quality assessment
radio-navigational systems
Opis:
The reduction of sea ice area in the Arctic has increased the availability of the Russian Arctic seas for navigation by vessels of relatively low ice class. The signing of the Act on the Northern Sea Route (NSR) by the President of the Russian Federation has created the possibility for ships from countries other than Russia to use the NSR. However, the NSR is very poorly recognized in terms of navigation by countries other than Russia. The author of the paper analyzed the NSR navigation infrastructure components in terms of the reliability of the information provided by the main producers of nautical publications for initial voyage planning. For the purpose of this analysis an indicator of the quality of the navigation infrastructure was developed. The value of this indicator, obtained on the basis of the above analysis, is low. Navigators that collect information during the initial stage of voyage planning may be misled if they use nautical publications originating from only one global producer of charts and publications. If the navigators act in accordance with good seamanship and familiarize themselves with information from two or three global producers of nautical publications, they may be disoriented due to the receipt of divergent information. It seems that before the voyage begins and preferably before planning a trip, the master or owner of the vessel intending to carry out a voyage by the NSR should first use the most current local knowledge in the possession of the Northern Sea Route Administration. This is also where information can be found as to where to obtain the most current and reliable information for initial voyage planning.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2015, 44 (116); 74-82
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Route prediction for a person in water drifting in chosen basins using graph theory
Autorzy:
Kijewska, M.
Powiązania:
https://bibliotekanauki.pl/articles/135003.pdf
Data publikacji:
2017
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
route prediction
trajectory prediction
object movement
search planning
survivor
person in water
search and rescue
graph theory
Opis:
In this paper, the route prediction for a person in water was performed on the basis of a developed graph algorithm. This person drifted in water under the influence of surface currents and wind. The total drift route for the person in water was established as the route in a weighted directed graph. Vertices of this graph correspond to given points within a given basin. Additionally, the graph’s edges show possible directions of the overall human drift. The weight of the given edge describes the difference between the gradient of the edge and the total drift direction calculated on the basis of surface current field data and wind field data. An application has been created on the basis of a given algorithm which might be used to support the search for survivors in coastal areas (e.g. port basins, basins adjacent to the port, bays and sea areas) for which hydrodynamic models reliably reflect local phenomena.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2017, 50 (122); 45-51
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling navigation, ecologic and economic results of planned voyage of ship on the Northern Sea Route
Autorzy:
Pastusiak, T.
Powiązania:
https://bibliotekanauki.pl/articles/24201325.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
safety at sea
Northern Sea Route
voyage planning
ship's passage
arctic navigation
icebreaker
modeling
ship's voyage timetable
Opis:
Over the years, many publications have been published on planning ship’s passage through the NSR and input and output data modeling. Results were not considered in terms of errors of modeled output data. Basic research for the years 2008 - 2020 was carried out in the study on opening and closing dates of ice-free transit corridor on the NSR and probable number of tariff zones where paid assistance of icebreakers would be required. Mathematical relationships of average values and probable errors of navigational, ecological and economic ship voyage performance were developed. For this purpose, partial derivatives of functions were used. The outcomes of the study have shown that changes of total average cost of vessel’s transit voyage depends mostly on number of tariff zones where assistance of icebreakers is required. But navigation with icebreakers assistance ensures smaller standard deviation of total voyage time and thus more precise scheduling of ship's voyage timetable through the NSR. The higher probability of meeting requirements set by decision-maker when planning a long-term voyage of ship, the shorter time window for meeting these requirements. Outside the favorable time window, the navigational, ecological and economic results of voyage deteriorate very quickly.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2022, 16, 4; 611--623
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimal trajectories planning in an upper airspace
Autorzy:
Krzyżanowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/393397.pdf
Data publikacji:
2014
Wydawca:
Polskie Stowarzyszenie Telematyki Transportu
Tematy:
optimal trajectories planning
upper airspace capacity
free route airspace
planowanie optymalnych trajektorii
przestrzeń powietrzna górna
wolna przestrzeń powietrzna
Opis:
The concept of target function for calculating optimal trajectories and results related to an upper airspace capacity from computer simulations are presented in this paper. The basic model of Free Route Airspace (FRA), role of conflict free and efficient flight route planning as a part of introduction working programme – Step 2, “Trajectory – based Operations” in Single European Sky ATM Research Programme are also presented. Free Route Airspace is defined as specific airspace within which users shall freely plan their routes between an entry point and an exit point without reference to the ATS route network.
Źródło:
Archives of Transport System Telematics; 2014, 7, 1; 14-18
1899-8208
Pojawia się w:
Archives of Transport System Telematics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Partycypacja społeczna w kontekście budowy trasy średnicowej w Opolu
Autorzy:
Kurek, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/1024149.pdf
Data publikacji:
2019-12-30
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
partycypacja społeczna
konsultacje społeczne
planowanie przestrzenne
trasa średnicowa
Opole
social participation
social consultations
spatial planning
cross-city route
Opis:
Autor artykułu postawił sobie za cel opisanie przebiegu konfliktu przestrzennego oraz analizę procesu partycypacji społecznej w kontekście planowanej budowy trasy średnicowej przebiegającej przez wyspę Pasiekę w Opolu. Posługując się metodą studium przypadku podjęto próbę znalezienia odpowiedzi na pytania: czy władze samorządowe zastosowały „dobre praktyki” postulowane przez organizacje pozarządowe oraz jaką rolę odegrał w nich ruch miejski.
This article aims to describe and analyse the process of spatial conflict and social participation in the context of the planned construction of the cross-city route running through Pasieka Island in Opole. By applying the case study method, an attempt was made to find the answers to the following questions: were the so-called good practices postulated by non-governmental organisations applied and what role was played by an urban movement?
Źródło:
Konwersatorium Wiedzy o Mieście; 2019, 32, 4; 107-120
2543-9421
2544-1221
Pojawia się w:
Konwersatorium Wiedzy o Mieście
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mielec - miasto sukcesywnie przywracane pieszym
Mielec – a City Gradually Restored to Pedestrians
Autorzy:
Kolisz, K.
Powiązania:
https://bibliotekanauki.pl/articles/344951.pdf
Data publikacji:
2014
Wydawca:
Politechnika Krakowska im. Tadeusza Kościuszki. Wydział Architektury. Katedra Kształtowania Środowiska Mieszkaniowego
Tematy:
ruch pieszy
ruch kołowy
przestrzeń miejska
ciąg komunikacyjny
urbanistyka
pedestrian traffic
wheeled traffic
urban space
communication route
town planning
Opis:
Problemem dzisiejszych miast są zdominowane przez samochody centra miejskie. Przestrzenie zaprojektowane z myślą o pieszych stały się odcinkami dróg tranzytowych, których próba zamknięcia wywołuje strach i protesty. Ruch pieszy przeniósł się z ulic i rynków do galerii handlowych. Obecnie można zaobserwować próby naprawy przestrzeni publicznych polskich miast i miasteczek, mające na celu przywrócenie ich pierwotnych funkcji. Często wiąże się to z ograniczeniem ruchu kołowego na rzecz pieszych. Celem artykułu jest analiza dwóch ważnych dla miasta Mielca przestrzeni miejskich, które w ostatnich kilku latach zostały przebudowane oraz konsekwencji tych zmian dla mieszkańców.
The problem of today’s cities is a car-dominated city center. Spaces primarily designed for pedestrians became fragments of transit roads and attempts at their closing arouse fear and protests. Pedestrian traffic moved from streets and squares into shopping malls. Nowadays, we can observe attempts to reconstruct public spaces, mainly in the centers of Polish towns and cities, aiming at the restoration of their primary functions. It is very often connected with the restriction of cars in favor of pedestrians. The aim of this article is the analysis of two important public spaces in Mielec, which have been lately redeveloped, as well as the consequences of those changes for the citizens.
Źródło:
Środowisko Mieszkaniowe; 2014, 13; 96-102
1731-2442
2543-8700
Pojawia się w:
Środowisko Mieszkaniowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metoda projektowania rejonu zmiany kierunku trasy kolejowej
Method For Planning the Area of Direction Change in Railway Route
Autorzy:
Koc, W.
Powiązania:
https://bibliotekanauki.pl/articles/214865.pdf
Data publikacji:
2011
Wydawca:
Instytut Kolejnictwa
Tematy:
Aktywna Sieć Geodezyjna ASG-EUPOS
projektowanie
układ geometryczny toru
zmiana kierunku trasy kolejowej
ASG-EUPOS
direction change in railway route
planning
Opis:
Zastosowanie ciągłych pomiarów satelitarnych toru kolejowego z antenami zainstalowanymi na poruszającym się pojeździe szynowym, powoduje potrzebę opracowania nowej metody projektowania układów geometrycznych toru. Ponieważ kształtowanie kierunków prostych trasy na podstawie takich pomiarów nie sprawia żadnych trudności, w pracy skupiono się na kwestii projektowania odcinków położonych w łuku. Założono, że projektowanie układu geometrycznego będzie się odbywać w odpowiednim roboczym układzie współrzędnych, by następnie - na drodze odpowiedniej transformacji - przenieść uzyskane rozwiązanie do układu globalnego. Przedstawiono cały tok postępowania wraz z wyprowadzaniem odpowiednich zależności teoretycznych. Całość zilustrowano przykładami obliczeniowymi, w których wykorzystano dane uzyskane z istniejącej linii kolejowej.
Use of continuous satellite measurements of the railway track, where the antennas are mounted on the moving rail-vehicle, calls for new method for the design of track geometric layout. Since shaping straight sections of a route, based on such measurements, does not create any difficulties, the paper is focused on the design of curved sections of a track. It was assumed that geometric layout design would be carried out within working co-ordinate system. Next, after proper transformation, the solution obtained would be transferred into the global system. The entire procedure is presented, together with derivation of suitable theoretical relationships. Computational examples based on the data taken from actual railway line, illustrate the whole analysis.
Źródło:
Problemy Kolejnictwa; 2011, 152; 197-217
0552-2145
2544-9451
Pojawia się w:
Problemy Kolejnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ECDIS Limitations, Data Reliability, Alarm Management and Safety Settings Recommended for Passage Planning and Route Monitoring on VLCC Tankers
Autorzy:
Rutkowski, G.
Powiązania:
https://bibliotekanauki.pl/articles/117179.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Electronic Chart Systems (ECS)
Electronic Chart Display and Information System (ECDIS)
ECDIS limitations
data reliability
alarm management
passage planning
route monitoring
VLCC tankers
Opis:
The purpose and scope of this paper is to describe the factors to consider when determining Electronic Chart Display and Information System (ECDIS) limitation, data reliability, alarm management and ship’s safety parameter settings. For the optimum situational awareness, navigators must always recognize the level of display for objects presented when using ECDIS. The values for the safety depth and safety contour must be understood and entered to achieve a sensible and considered meaning and alarm settings. The navigators must remember that the display of underwater obstructions or isolated danger symbols can change according to the settings of this safety contour which also marks the division between navigable (safe) and non-navigable (unsafe) water. Improper management of the system may result in the anti-grounding alarms and other indications failing to activate as required for the safe conduct of the navigation. Consequently, it could give a false impression of safe waters around the vessel where some dangers may not be shown due to the limitations imposed by original chart scale. This paper recognizes the limitations of ECDIS display, the significance of appropriate safety settings as well as the alarm management recommended for passage planning & route monitoring on VLCC tankers.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 3; 483-490
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
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