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Search results for: INFRASTRUKTURA POZASTADIONOWA
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How digital platforms support public values through government-citizen collaboration?
PublicationDigital platforms are becoming a popular means of multi-sided interactions between public institutions and their constituents. By enabling information sharing, consultation, and other forms of government-citizen collaboration, they facilitate co-decision-making and co-creation. Although digital platforms are not, the mechanism through which they can create public value, although important for government institutions and citizens...
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Bicycle Traffic Model for Sustainable Urban Mobility Planning
PublicationModelling tools and transport models are required to assess the impact of measures for the effective planning of cycling routes in cities. This paper presents the methodology for developing a four-stage macroscopic model of bicycle traffic for the city of Gdynia, and its use in planning new bicycle routes, considering a modal shift. The model presented in this paper allows for the evaluation of the influence of the characteristics...
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The need for new transport protocols on the INTERNET
PublicationThe TCP/IP protocol suite is widely used in IP networks, regardless of diverse environments and usage scenarios. Due to the fact of being the basic concept of organizing the work of the Internet, it is the subject of interest and constant analysis of operators, users, network researchers, and designers. The Internet is a "living" organism in which new needs appear all the time. This is particularly important due to the emerging...
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Cross-layer mDNS/ARP integration for IEEE 802.11s Wireless mesh Network
PublicationPopularization of mobile computing devices created a need for robust, efficient and ubiquitous methods of communication and network access. At the same time, evolution and standardization of Wireless Local Area Network (WLAN) technologies made them an attractive solution for building of complex network systems. Moreover, growing maturity of WLAN standards such as IEEE 802.11 allows for introduction of WLAN architectures other than...
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Participatory Budgeting in Poland – Missing Link in Urban Regeneration Process
PublicationIn last thirty years Poland has gone a long way toward democracy and decentralization. Role of public participation in planning is increasing rapidly and recently many new instruments of empowering the community is being introduced, participatory budgeting is one of the most important. On the other hand, urban regeneration is one of the most important challenges of polish cities are facing. Technical and transport infrastructure...
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Microgrid Energy Management System
PublicationIn the era of rapid development of "green energy” and storage devices, microgrids implemented in line with the concept of distributed generation can be an effective form of power management. There is a need for an efficient, optimal and reliable control of the combined infrastructure. The article presents a flexible, configurable microgrid's resources control system, which executes the task of meeting the electricity demand of...
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3D Machine Vision System for Inspection of Contact Strips in Railway Vehicle Current Collectors
PublicationConstruction and technical condition of current collectors is crucial to reliability and safety of railway transportation. According to the Technical Specifications for Interoperability railway vehicles in the European Union should be equipped with carbon contact strips. Excessive wear or defects of contact strips degrade the capability of undisturbed power transmission, cause faster wear of contact wire, and can even result in...
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Travel Time of Public Transport Vehicles Estimation
PublicationEffective prediction of speed is central to advanced traveler information and transportation management systems. The speed of public transport vehicles is affected by many external factors including traffic volume, organization and infrastructure. The literature presents methods for estimating travel time on sections of a transport network and vehicle arrival at stops, often making use of the AVL (automatic vehicle location). The...
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Identification of safety hazards and their sources in tram transport
PublicationBoth in Poland and in most countries of the European Union, the tram infrastructure is extensively expanding. Contemporary low-floor trams are constructed according to different technical assumptions than typical railway vehicles or high floor trams. In Poland such vehicles rides often on lines designed according to standards developed to the classical vehicles. At the same time, the intensity of road traffic and the number of...
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Estakada E2 - kluczowy obiekt Obwodnicy Wałcza
PublicationW artykule przedstawiono uwarunkowania i przebieg projektowania estakady E2 z betonu sprężonego w ciągu Obwodnicy Wałcza. Pokazano efekt procesu optymalizacji projektu pierwotnego. Opisano przeprowadzone analizy wynikające z przyjętej technologii nasuwania podłużnego oraz istotne aspekty, które należy poruszyć przy wyborze tej technologii. Zaprezentowano modele numeryczne konstrukcji przęseł i metodę analizy z uwzględnieniem pracy...
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Projekt i implementacja rejestratora parametrów pojazdu
PublicationProjektowany rejestrator jest cyfrowym urządzeniem elektronicznym, które może w czasie rzeczywistym zbierać dane o stanie pojazdu, a także przechowywać je do późniejszej obróbki. Urządzenie takie może posłużyć do analizy przejazdu pod względem dynamiki czy ekonomii jazdy, a nawet pomóc w zapobieganiu wypadkom samochodowym i radzeniu sobie z ich skutkami [4][5]. W poniższym artykule opisano proces tworzenia rejestratora w oparciu...
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ZAKRES STOSOWANIA DECYZJI TSI PRM (Decyzja Komisji WE nr 2008/164/WE z dnia 21 grudnia 2007r.)W PROJEKTOWANIU POLSKICH DWORCÓW
PublicationModernizacja każdego dworca musi być realizowana zgodnie z polskimi przepisami budowlanymi, a dodatkowo powinna być zgodna z przepisami Decyzji TSI PRM, o ile te zostały wprowadzone do polskiego prawa, a nie są sprzeczne z polskimi przepisami budowlanymi lub są przepisem szczególnym tych przepisów. Do dziś w Rozporządzeniu Ministra Infrastruktury z dn. 12.04.2002r. w sprawie warunków technicznych, jakim powinny odpowiadać budynki...
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Inżynieria odwrotna bazy paliw płynnych w Gdańsku
PublicationArtykuł prezentuje prace z zakresu pozyskania danych o zbiornikach bazy paliw płynnych w Gdańsku. Przedstawione rozwiązanie nie ogranicza się tylko do stworzenia (rejestracji) chmury punktów, ale jest próbą wskazania użycia naziemnego skaningu laserowego do stworzenia bazy informacji o bazie paliw – w tym głównie geometrii zbiorników. Autorzy prezentują proces inwentaryzacji, rejestrację chmury punktów oraz wskazują zasady tworzenia...
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Zastosowanie szablonów Trust Case w pracy z normą BS 7799
PublicationTrust Case stanowi strukturę danych zawierającą argumentację oraz związany z nią materiał dowodowy uzasadniający, że interesujący nas obiekt (system, infrastruktura, organizacja) posiada wskazane własności. Wykorzystanie Trust Case do analizy i uzasadniania zaufania do systemów IT jest przedmiotem aktywnych badań. Podejście to znalazło zastosowanie w stosunku do systemów związanych z bezpieczeństwem (ang. safety critical), a ostatnio...
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Wpływ modernizacji ujścia Wisły na ochronę przeciwpowodziową i warunki żeglugowe
PublicationZatory lodowe w ujściu Wisły tworzą zagrożenie powodziowe o zasięgu obejmującym Żuławski odcinek Wisły. Wykonanie sztucznego ujścia Wisły do Morza Bałtyckiego, a następnie zamknięcie Wisły Gdańskiej, Szkarpawy i Nogatu znormalizowało stosunki wodne w delcie Wisły. Regulację ujścia Wisły rozpoczęto już w dwa lata po wykonaniu Przekopu i kontynuuje się do chwili obecnej.Określenie tempa wzrostu objętości stożka jak i pochodzenie...
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Pedestrian safety management using the risk-based approach
PublicationThe paper presents a concept of a multi-level pedestrian safety management system. Three management levels are distinguished: strategic, tactical and operational. The basis for the proposed approach to pedestrian safety management is a risk-based method. In the approach the elements of behavioural and systemic theories were used, allowing for the development of a formalised and repeatable procedure integrating the phases of risk...
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Use of a Least Squares with Conditional Equations Method in Positioning a Tramway Track in the Gdansk Agglomeration
PublicationSatellite measurement techniques have been used for many years in different types of human activity, including work related to staking out and making use of rail infrastructure. First and foremost, satellite techniques are applied to determine the tramway track course and to analyse the changes of its position during its operation. This paper proposes using the least squares with conditional equations method, known in geodesy (LSce)....
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Flow cytometric approach to evaluate the impact of hydro-technical concrete compounds’ release to the freshwater microbiome
PublicationThe aim of this research was to test the potential of applying a flow cytometric procedure to evaluate the impact of concrete compounds’ release to the freshwater microbiome. Cells from the collected samples were stained with a fluorogenic redox indicator dye that measures the redox potential of microbial cells. This novel approach was combined with the assessment of microorganisms’ penetration into the internal structures of concrete...
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COMBINATION OF ARCHITECTURAL, ENVIRONMENTAL, AND SOCIAL ASPECTS IN URBAN STORMWATER MANAGEMENT. A CASE STUDY OF THE UNIVERSITY CAMPUS
PublicationIncreasing a city’s resilience against climate change is one of the major concerns of today. Sustainable stormwater management, using Green Infrastructure units (GI) integrated with an urban area, has proved to be effective in flooding control and to offer extra benefits encompassing groundwater recharge, stormwater treatment, mitigation of air pollution, and an urban micro-climate. Moreover, GI brings cultural benefits for the...
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BASECOL2023 scientific content
PublicationContext. The global context of making numerous data produced by researchers available requires collecting and organising the data, assigning meaningful metadata, and presenting the data in a meaningful and homogeneous way. The BASECOL database, which collects inelastic rate coefficients for application to the interstellar medium and to circumstellar and cometary atmospheres, meets those requirements. Aims. We aim to present the...
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Automatic Incident Detection at Intersections with Use of Telematics
PublicationWhile there are many examples of Intelligent Transport System deployments in Poland, more attention should be paid to traffic incident management and detection on dual-carriageways and urban street networks. One of the aims of CIVITAS DYN@MO, a European Union funded project, is to use TRISTAR (an Urban Transport Management System) detection modules to detect incidents at junctions equipped with traffic signals. First part of paper...
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Digital Public Service Innovation: Framework Proposal
PublicationThis paper proposes the Digital Public Service Innovation Framework that extends the "standard" provision of digital public services according to the emerging, enhanced, transactional and connected stages underpinning the United Nations Global e-Government Survey, with seven example "innovations" in digital public service delivery -- transparent, participatory, anticipatory, personalized, co-created, context-aware and context-smart....
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Smart sustainable cities : Reconnaissance Study
PublicationThe global urban population is expected to grow by 63 percent between 2014 and 2050 – compared to an overall global population growth of 32 percent during the same period. Megacities with over 20-million inhabitants will see the fastest increase in population – and at least 13 new megacities are expected by 2030, in addition to the 28 existing today. The fastest growing urban centres contain around one-million inhabitants, and...
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A biochemical multi-species quality model of a drinking water distribution system for simulation and design
PublicationDrinking Water Distribution Systems (DWDSs) play a key role in sustainable development of modern society. They are classified as critical infrastructure systems. This imposes a large set of highly demanding requirements on the DWDS operation and requires dedicated algorithms for on-line monitoring and control to tackle related problems. Requirements on DWDS availability restrict the usability of the real plant in the design phase....
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Data Integration from GPS and Inertial Navigation Systems for Pedestrians in Urban Area
PublicationThe GPS system is widely used in navigation and the GPS receiver can offer long-term stable absolute positioning information. The overall system performance depends largely on the signal environments. The position obtained from GPS is often degraded due to obstruction and multipath effect caused by buildings, city infrastructure and vegetation, whereas, the current performance achieved by inertial navigation systems (INS) is still...
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Understanding Fuel Saving and Clean Fuel Strategies Towards Green Maritime
PublicationDue to recent emission-associated regulations imposed on marine fuel, ship owners have been forced to seek alternate fuels, in order to meet the new limits. The aim of achieving low-carbon shipping by the year 2050, has meant that alternative marine fuels, as well as various technological and operational initiatives, need to be taken into account. This article evaluates and examines recent clean fuels and novel clean technologies...
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Aspekty Edukacyjne Wirtualnych Światów. Aplikacja Second Life
PublicationArtykuł koncentruje się na trójwymiarowych środowiskach wirtualnych i ich funkcjonalności edukacyjnej na przykładzie świata Second Life. Wbrew opiniom pojawiającym się od czasu do czasu w literaturze przedmiotu światy wirtualne 3D nie odchodzą w przeszłość, przynajmniej nie w sektorze edukacyjnym. Autorzy artykułu próbują to wykazać,przedstawiając różne aspekty Second Life w zastosowaniach dydaktycznych, naukowych,...
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Odmienne polityki korporacji Microsoft i Novell realizacji mechanizmu defragmentacji pakietów IP
PublicationMechanizm fragmentacji uznawany jest przez wielu administratorów jako mało ważny. Jednak często może okazać się wręcz zasadniczy w wielu spotykanych w praktyce sytuacjach, przede wszystkim ze względów bezpieczeństwa i wydajności infrastruktury sieciowej. Artykuł ukazuje różnice polityk dwóch z największych producentów rozwiązań serwerowych w zakresie obsługi mechanizmu defragmentacji pakietów sieciowych. W pracy dokonano porównania...
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Port jachtowy jako element przestrzeni publicznej miasta nadmorskiego
PublicationRozprawa dotyczy zbadania i przedstawienia możliwości włączenia obiektów morskiego portu jachtowego w przestrzeń publiczną miasta, wykorzystania jego potencjału do jej kształtowania i rozwoju oraz sposobów wielofunkcyjnego zagospodarowania towarzyszącej mu infrastruktury. W celu opisania relacji między przestrzenią publiczną, a portem jachtowym przeanalizowano przekształcenia terenów nadwodnych w miastach portowych, zidentyfikowano...
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Nowe protokoły transportowe w sieciach IP. Analiza porównawcza wybranych mechanizmów w protokołach SCTP i QUIC
PublicationZestaw protokolarny TCP/IP opisuje podstawową koncepcję organizacji pracy Internetu. Z tej racji jest przedmiotem zainteresowania oraz stałych analiz zarówno operatorów, użytkowników, jak też badaczy zagadnień sieciowych, a wreszcie i projektantów, by reagować na pojawiające się nowe potrzeby. Działania takie, przynajmniej częściowo, są wymuszane zarówno przez wymagania nowych multimedialnych aplikacji - na najwyższym poziomie...
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ROLA ZABYTKÓW W GOSPODARCE - WYBRANE ZAGADNIENIA
PublicationRola zabytków w gospodarce rynkowej jest dwojaka i ogranicza się jedynie do wartości historycznej, naukowej czy artystycznej. Z jednej strony budują tożsamość narodową i pełnią funkcje społeczne, a z drugiej – stanowią produkt rynkowy, który wspiera rozwój regionalny pod względem atrakcyjności turystycznej oraz inwestycyjnej. Zabytki jako część infrastruktury stanowią element rozwoju społeczno – gospodarczego. Można więc powiedzieć,...
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Międzynarodowa droga wodna E-70 jako potencjał rozwojowy Delty Wisły
PublicationTransport wodny jest najtańszy, najbezpieczniejszy i najmniej uciążliwy dla środowiska naturalnego. Przywrócenie regularnej żeglugi towarowej pociągnie za sobą rewitalizację istniejącej i budowę nowej infrastruktury przeładunkowo-logistycznej śródlądowych portów handlowych. Kreując politykę transportową, trzeba pamiętać, że transport wodny jest najbardziej ekologicznym rodzajem transportu. Wytwarza zaledwie 10% emisji gazów wydalanych...
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Dynamiczne sieci VLAN z zastosowaniem mechanizmów silnego uwierzytelniania użytkowników oraz metod ochrony przesyłanych informacji
PublicationW pracy zaprezentowano definicje wirtualnych sieci LAN. Klasyfikację algorytmów sieci VLAN przeprowadzono używając kryterium przynależności tzn. port przełącznika, adres MAC, adres sieciowy, adres grupowy IP lub reguły logiczne. Opisano zasady tworzenia sieci VLAN w środowisku wieloprzełącznikowym z użyciem rozwiązań standardu 802.1Q lub protokółu ISL. Scharakteryzowano rozwiązania LANE oraz MPOA umożliwiającego integrację z siecią...
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Struktury sieci transportu zbiorowego w miastach
PublicationPotrzeby przewozowe mieszkańców miast powinny być zaspokajane poprzez dopasowaną i sprawnie funkcjonującą sieć transportu zbiorowego. Planując sieć i decydując się jednocześnie na jej sposób funkcjonowania istotnym jest uwzględnienie podstawowych postulatów przewozowych mieszkańców. Ostateczny kształt tej sieci wynika jednak z dodatkowych czynników zarówno infrastrukturalnych, ekonomicznych, jak i wielu innych. Celem niniejszego...
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Asymmetrical-Slot Antenna with Enhanced Gain for Dual-Band Applications
PublicationDual-band operation is an important feature of antennas to be applied in modern communication systems. Although high gain of radiators is rarely of concern in urban areas with densely located broadcasting stations, it becomes crucial for systems operating in more remote environments. In this work, a dual-band antenna with enhanced bandwidth is proposed. The structure consists of a driven element in the form of an asymmetrical radiator/slot...
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THE COST ANALYSIS OF CORROSION PROTECTION SOLUTIONS FOR STEEL COMPONENTS IN TERMS OF THE OBJECT LIFE CYCLE COST
PublicationSteel materials, due to their numerous advantages - high availability, easiness of processing and possibility of almost any shaping are commonly applied in construction for carrying out basic carrier systems and auxiliary structures. However, the major disadvantage of this material is its high corrosion susceptibility, which depends strictly on the local conditions of the facility and the applied type of corrosion protection system....
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Investigation on Mode I Fracture Behavior of Hybrid Fiber-Reinforced Geopolymer Composites
PublicationRecent reports in the literature have shown that fber-reinforced geopolymer composites (FRGC) made with monofbers exhibit a signifcant enhancement in fracture energy. However, many aspects of the fracture performance of hybrid fberreinforced geopolymer composites (HFRGC) remain largely unexploited, and these are predominant for the structures. For the frst time, the mode I fracture energy of HFRGC is investigated. The mode I behavior...
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Investigation of the Combustion Processes in the Gas Turbine Module of an FPSO Operating on Associated Gas Conversion Products
PublicationIn this paper, we consider the issue of thermo-chemical heat recovery of waste heat from gas turbine engines for the steam conversion of associated gas for offshore vessels. Current trends in the development of offshore infrastructure are identified, and the composition of power plants for mobile offshore drilling units and FPSO vessels is analyzed. We present the results of a comparison of power-to-volume ratio, power-to-weight...
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Analysis of Reasons of Accidents Between Cyclists and Public Transport Vehicles in Cities
PublicationIn European cities, a bicycle is now or is systematically becoming an equal means of transport. Unfortunately, the growth of bicycle traffic is associated with an increase in the number of accidents involving cyclists. Some of these accidents, are events with cyclists and public transport vehicles - and therefore means of transport, which together are to constitute a serious alternative to a car. Although the share of these kind...
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Stability Assessment of Coastal Cliffs Incorporating Laser Scanning Technology and a Numerical Analysis
PublicationWe investigated the cli coast in Jastrzebia Gora, Poland. The measurements that were taken between 2014 and 2018 by applying terrestrial, mobile, and airborne laser scanning describe a huge geometric modification involving dislocations in a 2.5 m range. Dierential maps and a volumetric change analysis made it possible to identify the most deformed cli’s location. Part of the monitoring of coastal change involved the measurement...
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A comprehensive survey on low-cost ECG acquisition systems: Advances on design specifications, challenges and future direction
PublicationAvailability of low-cost, reliable, and portable Electrocardiography (ECG) devices is still very important in the medical world today. Despite the tremendous technological advancement, Cardiovascular Diseases (CVDs) remain a serious health burden claiming millions of lives on an annual basis globally. This is more prevalent in Low and Middle-Income Countries (LMICs) where there are huge financial instability and lack of critical...
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Statistics with R A Handbook for Statistical Analysis with R and R-Studio
PublicationIf you are to perform any kind of data (statistical) analysis and use tools in the data science ecosystem, you may have seen a variety of tutorials, handbooks online (I’m not mentioning traditional bibles of statistics). Unfortunately most of them is written intentionally for specific purposes and/or target group of people and does not include many aspects, data types, difficult aspects, usually hiding them trying to solve theoretical...
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Analysis of Video Transmission Capabilities in a Simulated OFDM-Based Supplementary BPL-PLC System
PublicationThe design and maintenance of a reliable communication system, especially in harsh working conditions for the oil and mining industry, brings many challenges. With the use of a video transmission system, one can monitor the crew and their working environment. Broadband over power line–power line communication (BPL-PLC) seems an ideal medium for such a service, since it enables the use of the existing wired infrastructure for supplementary...
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Shaking table experimental study on damage mechanism of the disconnecting switch under seismic excitation
PublicationThe efficiency of the energetic network is a very import safety issue in the region experienced by the earthquake. High voltage disconnecting switches are important elements of the energetic infrastructure used to separate electric circuits (i.e. during repairs), which should not be damaged remaining fully operational. The aim of the paper is to show the results of the shaking table experimental investigation focused on damage...
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Fluvial ecology disasters: the impact of the Gliwice Canal on the ecological crisis in the Oder River basin, Poland (2022)
PublicationIn August 2022, the Oder River experienced an ecological disaster, resulting in the extinction of hundreds of aquatic organ- isms. Mass fsh deaths also occurred during that time in the Gliwice Canal, located in southern Poland, which connects to the upper section of the Oder River. The aim of the article was to assess the impact of the waters from the Gliwice Canal on the water quality changes in the Oder River, as expressed by...
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ROAD SAFETY FOR CYCLISTS BASED ON THE CALORIES NEEDED
PublicationCyclists are a vulnerable group of road users, especially when no separate infrastructure for cyclists is provided. Then, road factors such as distance and altitude differences can indirectly affect cyclists' safety. Therefore, the authors proposed a procedure based on the geometric characteristics of the road that can determine riding difficulties for cyclists. The proposed procedure can be used both by the public authorities who...
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State of the Art in Open Platforms for Collaborative Urban Design and Sharing of Resources in Districts and Cities
PublicationThis work discusses recent developments in sharing economy concepts and collaborative co-design technology platforms applied in districts and cities. These developments are being driven both by new technological advances and by increased environmental awareness. The paper begins by outlining the state of the art in smart technology platforms for collaborative urban design, highlighting a number of recent examples. The case of peer-to-peer...
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Quality Expectations of Mobile Subscribers
PublicationMobile systems, by nature, have finite resources. Radio spectrum is limited, expensive and shared between many users and services. Mobile broadband networks must support multiple applications of voice, video and data on a single IP-based infrastructure. These converged services each have unique traffic holding and quality requirements. A positive user experience must be obtained through efficient partitioning of the available wireless...
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Geographic Information System for Flood Hazard Analysis and Early Warning Using Numerical Weather Predictions
PublicationFloods are a phenomenon which causes significant losses of lives as well as property damage, which in turn severely impact the local economy. The nature of a flooding has been well researched, and several methods of flood hazard simulation have been established over the last decades. The current legislation in the European Union requires the Member States to create, maintain and update flood risk and hazard maps, as well as identify...
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Powojenny rozdział w historii architektury i zagospodarowania portu gdyńskiego
PublicationThe port of Gdynia, considered one of the largest civil construction projects of the 20th century in Europe, was built at an express pace for only a dozen or so years from the mid-1920s to the end of the 1930s. Unusual solutions from the construction period in the port engineering category, as well as outstanding architectural works The industrial area quickly became architectural symbols of economic growth and the general rebirth...