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    Wyświetlanie 1-3 z 3
    Tytuł:
    Modelling of expected traffic smoothness in urban transportation systems for ITS solutions
    Autorzy:
    Karoń, G.
    Żochowska, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/224276.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    traffic smoothness theory
    ITS modelling
    transport in urban area
    teoria płynności ruchu
    modelowanie ITS
    transport w obszarze miejskim
    Opis:
    In urban networks, with dense traffic flows and a high risk of the disruption (even in the form of a short queue of vehicles) the probability of occurrence of such a situation (disruption and queue) is a better measure of the probabilistic description of the capacity constraints than the expected waiting time in the queue, because the probability takes into account the risk of delay in the traffic flow from the point of view of the person that plans a trip. The functions of expected smoothness of the traffic flows in the elementary nodes and the expected waiting time in the queue for different packages of ITS services have been presented in the mathematical forms.
    Źródło:
    Archives of Transport; 2015, 33, 1; 33-45
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of impact of vehicle traffic conditions: urban, rural and highway, on the results of pollutant emissions inventory
    Autorzy:
    Bebkiewicz, Katarzyna
    Chłopek, Zdzisław
    Sar, Hubert
    Szczepański, Krystian
    Zimakowska-Laskowska, Magdalena
    Powiązania:
    https://bibliotekanauki.pl/articles/2067401.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    vehicle traffic
    traffic conditions
    pollutant emission inventory
    pollutant emissions modelling
    ruch pojazdów
    warunki ruchu
    inwentaryzacja emisji zanieczyszczeń
    modelowanie emisji zanieczyszczeń
    Opis:
    The use of motor vehicles varies considerably under distinct traffic conditions: in cities, outside cities as well as on motor-ways and expressways. The impact of road traffic on the natural environment has been studied for many years, including in terms of the nature of the operation of motor vehicles. This problem is particularly important in highly urbanized areas, where traffic congestion is the source of increased emissions of harmful compounds contained in exhaust gases. For this reason, many cities have traffic restrictions, especially for those cars that do not meet the most stringent emission standards. Environmental protection is the driving force behind the development of modern combustion engine supply systems, which allow for proper control of the combustion of petroleum-derived fuels. The exhaust gas cleaning systems in the form of catalytic converters or particulate matter filters are also playing a very important role. Considerable differences in internal combustion engine operating states, both static and dynamic, result in important differences in pollutant emissions. Likewise, the national annual pollutant emission is affected by the share of distances travelled by vehicles under various traffic conditions. At the same time, it is very difficult to estimate exhaust emissions from road transport sources. Very interesting method of emission estimation is the application of the data included in the emission inventory which are a valuable source of information on exhaust emissions under various operating conditions. In the present study, the annual pollutant emissions were analyzed: at a national level (total pollutant emission) and in distinct traffic conditions. There were found large differences between individual pollutants’ shares in the emissions from vehicles under the tested traffic conditions. This is particularly evident for nitrogen oxides with the highest emission share outside cities, as opposed to other substances with the highest emission shares in cities, where traffic congestion is taking place.
    Źródło:
    Archives of Transport; 2021, 60, 4; 57--69
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A perceptual-behavioural approach with non-parametric experimental coefficient for urban parking business design
    Autorzy:
    Ferrarese, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/224059.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    parking choice
    market for parking
    study of movements
    modern urban civilization
    parking modelling
    parkingi
    projektowanie parkingów
    analiza ruchu
    nowoczesna cywilizacja miejska
    modelowanie
    Opis:
    Transportation science and integrated logistics of passengers in the cities provide a detailed study of the movements both on entry to the urban areas than within them. Parking lots are, very often, places of exchange between the motorized and the pedestrian or cycling mode, or between individual and collective motorized modes. As the modern urban civilization is known by its impetuous car parking expansion it becomes essential to design the parking lots bearing in mind the needs of those who will really use them and not referring to the political lobbies in the city administration. The study of parking lot in terms of business and financial design, planning and management after the construction needs is a more accurate determination of the experimental parameters, which enable choice of the model to minimize the uncertainty of the data that will define the revenues according to the Project Financing procedures.
    Źródło:
    Archives of Transport; 2016, 37, 1; 15-30
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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