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    Wyświetlanie 1-6 z 6
    Tytuł:
    Cellular automaton traffic flow model with vehicle type and number of persons
    Autorzy:
    Miklóšik, I.
    Spalek, J.
    Hruboš, M.
    Přibyl, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/393958.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Stowarzyszenie Telematyki Transportu
    Tematy:
    PLC
    tunnel
    simulation
    microscopic traffic flow model
    cellular automation
    tunel
    symulacja
    mikroskopowy model przepływu ruchu
    automat komórkowy
    Opis:
    The paper deals with microscopic modeling of the traffic flow using cellular automaton in the Tunnel Simulator based on PLC. Model with lane changing logic is implemented in the SCADA visualization screen of the tunnel with unidirectional two-lane traffic. Tunnel Simulator is able to simulate unexpected events in the road tunnel such as fire, so vehicle type is also included in the traffic model to specify the heat release rate of the fire for car, van, bus and truck fi re scenario. Number of persons in the vehicles and location of the persons in the tunnel are planned to be used as the input for the model for evacuation time estimation.
    Źródło:
    Archives of Transport System Telematics; 2015, 8, 1; 14-18
    1899-8208
    Pojawia się w:
    Archives of Transport System Telematics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    GIS-based traffic flow simulation visualization for TRANSIMS
    Autorzy:
    Maciejewski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/393277.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Stowarzyszenie Telematyki Transportu
    Tematy:
    ruch drogowy
    miasto
    model
    symulacja
    wizualizacja
    Transims
    GIS
    Java
    GeoTools
    FFmpeg
    traffic flow
    urban
    simulation
    microscopic
    visualization
    TRANSIMS
    Opis:
    The paper presents two visualization applications that enable to visualize traffic flow simulation results obtained with the TRANSIMS system. The applications, designed and implemented at the Institute of Machines and Motor Vehicles of Poznan University of Technology, are written in Java and, as freeware, can be used free of charge. Both visualizers use GIS-based data manipulation techniques to provide precise and customizable 2D visualization. First, the problem of traffic flow modeling and simulation, and the TRANSIMS system were introduced. Then a general design and features of both applications were described. In order to demonstrate the most essential capabilities of the tools, the author presented an example of visualization of traffic in a segment of a real urban network.
    Źródło:
    Archives of Transport System Telematics; 2010, 3, 2; 24-28
    1899-8208
    Pojawia się w:
    Archives of Transport System Telematics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Performance evaluation of roundabouts using a microscopic simulation model
    Autorzy:
    Kłos, Marcin
    Sobota, Aleksander
    Powiązania:
    https://bibliotekanauki.pl/articles/197085.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    microscopic model
    traffic simulation
    traffic parameters
    intersection geometry
    model mikroskopowy
    symulacja ruchu
    parametry ruchu
    geometria skrzyżowania
    Opis:
    Contemporary planning of the road network in cities assumes the use of transport models. The microscopic model allows provision of information and decision-making regarding, for example, emissions, traffic organisation, geometrics of the intersection and traffic control system. This article describes the development of comprehensive methodology applied for carrying out the research related to the design of geometrical parameters of the roundabout. The methodology involves developing instructions for preparing solutions for performance evaluations of roundabouts using a microscopic simulation model with the VISSIM software. The application of the developed methodology was prepared on the case study of the roundabout in Gdańsk. The results of the prepared case study were discussed.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2019, 104; 57-67
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reducing Delay Time at Signal Controlled Junction with the Help of Actuated Control
    Autorzy:
    Černický, Ľubomír
    Kupčuljaková, Jana
    Paľo, Jozef
    Kalašová, Alica
    Powiązania:
    https://bibliotekanauki.pl/articles/103235.pdf
    Data publikacji:
    2020
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    actuated control
    microscopic simulation
    delay time
    Aimsun
    fixed control
    traffic lights
    uruchamiane sterowanie
    symulacja mikroskopowa
    opóźnienie
    stała kontrola
    światła
    Opis:
    Nearly every town faces the traffic problem caused by the continuous increase of the traffic volume. Traffic collapses, congestions, accidents and a further negative impact on the environment are gradually becoming a common part of our lives. Junctions are the most critical points of the road network, which usually determine the capacity of the roads. Therefore, proper traffic organization at junctions is a necessity. This paper analyses the actuated control in comparison to the fixed control at a signal-controlled junction. It also includes a case study of one problematic junction in this paper. With the help of microscopic simulation in Aimsun, 2 solutions for this problematic junction were assessed, one of which is fixed control and other is actuated control. Actuated traffic control gives better results than fixed control.
    Źródło:
    Advances in Science and Technology. Research Journal; 2020, 14, 3; 149-157
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Cellular Traffic Capacity Model of Toll Station Square
    Autorzy:
    Bai, Yuning
    Wang, Kaixuan
    Yi, Lei
    Peng, Bo
    Powiązania:
    https://bibliotekanauki.pl/articles/27311807.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    highway toll station
    traffic capacity
    microscopic simulation
    toll plaza
    opłata autostradowa
    punkt poboru opłaty
    natężenie ruchu
    Opis:
    Traffic capacity is an important index to measure the operation efficiency of expressway toll stations. In order to provide relevant theoretical support for accurately evaluating the congestion degree and service level of toll stations, this paper establishes a traffic capacity calculation model for the square in front of expressway toll stations based on the traditional cellular transmission method. Firstly, by dividing the square in front of the station into regular cells, the process of calculating the traffic capacity is simplified; Secondly, the capacity model of the square in front of the station is established based on cellular transmission, and a large amount of data is collected through the monitoring videos of several toll stations. The theoretical capacity of the square in front of the station is calculated by using the important parameters of the model calibrated by the measured data under different lengths of the square in front of the station and the configuration of toll lanes. Then, the simulation platform of VISSIM software is used, and many experiments are carried out with relevant measured data to verify the accuracy of the model in multiple scenarios. Finally, the simulation value of the capacity of the square in front of the station is obtained, and the error is calculated by using the simulation value and the calculation value. The results show that the error of the verification result is 5.19%, and the error is within the allowable range, which shows that the model is accurate and feasible. The theoretical capacity calculated by the capacity model of the square in front of the toll station established in this paper is compared with the actual capacity, which can be used as a standard to judge the congestion degree of the square in front of the toll station and further provide a theoretical reference for evacuation of congestion.
    Źródło:
    Archives of Transport; 2023, 67, 3; 35--47
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Vehicle emission computation through microscopic traffic simulation calibrated using genetic algorithm
    Autorzy:
    Wei, Yun
    Yu, Ying
    Xu, Lifeng
    Huang, Wei
    Guo, Jianhua
    Wan, Ying
    Cao, Jinde
    Powiązania:
    https://bibliotekanauki.pl/articles/91529.pdf
    Data publikacji:
    2019
    Wydawca:
    Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
    Tematy:
    environment protection
    microscopic traffic simulation
    genetic algorithm
    IVE model
    emission evaluation
    Opis:
    Vehicle emission calculation is critical for evaluating motor vehicle related environmental protection policies. Currently, many studies calculate vehicle emissions from integrating the microscopic traffic simulation model and the vehicle emission model. However, conventionally vehicle emission models are presented as a stand-alone software, requiring a laborious processing of the simulated second-by-second vehicle activity data. This is inefficient, in particular, when multiple runs of vehicle emission calculations are needed. Therefore, an integrated vehicle emission computation system is proposed around a microscopic traffic simulation model. In doing so, the relational database technique is used to store the simulated traffic activity data, and these data are used in emission computation through a built-in emission computation module developed based on the IVE model. In order to ensure the validity of the simulated vehicle activity data, the simulation model is calibrated using the genetic algorithm. The proposed system was implemented for a central urban region of Nanjing city. Hourly vehicle emissions of three types of vehicles were computed using the proposed system for the afternoon peak period, and the results were compared with those computed directly from the IVE software with a trivial difference in the results from the proposed system and the IVE software, indicating the validity of the proposed system. In addition, it was found for the study region that passenger cars are critical for controlling CO, buses are critical for controlling CO and VOC, and trucks are critical for controlling NOx and CO2. Future work is to test the proposed system in more traffic management and control strategies, and more vehicle emission models are to be incorporated in the system.
    Źródło:
    Journal of Artificial Intelligence and Soft Computing Research; 2019, 9, 1; 67-80
    2083-2567
    2449-6499
    Pojawia się w:
    Journal of Artificial Intelligence and Soft Computing Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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