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    Wyświetlanie 1-4 z 4
    Tytuł:
    Review of methods for assessing traffic conditions on basic motorway and expressway sections
    Autorzy:
    Romanowska, Aleksandra
    Jamroz, Kazimierz
    Olszewski, Piotr
    Powiązania:
    https://bibliotekanauki.pl/articles/224305.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    motorway
    expressway
    basic segments
    capacity
    traffic conditions
    Opis:
    Motorways and expressways are the core of each country’s road system. Road planning, design and management requires tools to ensure that roads have the right geometry, traffic layout and equipment. These include methods for capacity estimation and assessing traffic conditions. Because the paper focusses on the basic segments of motorways and expressways (sections located between interchanges and outside of their influence), its objective is to review and compare methods used worldwide and establish whether their assumptions or procedures could be used in Polish conditions. Four methods were selected for analysis: US, German, Swedish and Dutch. Theoretical and empirical comparisons were conducted, with the latter using data from sections of motorways and expressways in Poland collected in the RID-2B project. The results of the analyses showed important differences between the methods in terms of procedures for traffic conditions assessment, assumptions, base capacities, traffic conditions measures, factors or speed-flow models. Significant differences were also found when traffic parameter estimates made with particular methods were compared to real data from Polish roads. The results contributed to the development of Poland’s new method, to be prepared as a result of the RID-2B project. It was concluded that none of the analysed methods can be directly adopted to Polish conditions. An important conclusion is the need to include Poland-specific motorway speed limits and procedure for determining free-flow speed, the basis for further analyses.
    Źródło:
    Archives of Transport; 2019, 52, 4; 7-25
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelling and predicting sound level around selected sections of motorway A2
    Modelowanie i prognozowanie poziomu dźwięku w otoczeniu wybranego odcinka autostrady A2
    Autorzy:
    Orczyk, M.
    Tomaszewski, F.
    Powiązania:
    https://bibliotekanauki.pl/articles/224353.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    hałas drogowy
    hałas na autostradzie
    pomiar hałasu
    modelowanie hałasu
    traffic noise
    motorway
    noise modelling
    diffraction
    Opis:
    This article presents potential of modelling and predicting noise level around the section of motorway A2 Komorniki – Krzesiny. The models were worked out on the basis of sound levels registered in three stages of research connected with phases of utilization of this motorway (measurement of acoustic background without traffic, measurements after opening section Komorniki – Krzesiny and noise measurement after opening section Nowy Tomysl – Konin). The models were verified on the basis of actual number of vehicles which passed by section Komorniki – Krzesiny on random day and at random hour.
    W artykule przedstawiono możliwości modelowania i prognozowania hałasu w otoczeniu fragmentu autostrady A2 Komorniki - Krzesiny. Modele opracowano na podstawie rejestracji poziomów dźwięku w trzech etapach badań związanych z fazami eksploatacji autostrady (pomiar tła akustycznego - bez ruchu pojazdów, pomiary po oddaniu odcinka Komorniki - Krzesiny do eksploatacji oraz pomiary hałasu po uruchomieniu nowego odcinka autostrady Nowy Tomyśl - Konin). Opracowane modele zweryfikowano w oparciu o rzeczywistą liczbę pojazdów, które przejechały przez odcinek Komorniki - Krzesiny w losowo wybranym dniu i godzinie.
    Źródło:
    Archives of Transport; 2011, 23, 2; 173-190
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Technological conditions of intermodal transhipment terminals in Poland
    Autorzy:
    Nader, M.
    Kostrzewski, A.
    Kostrzewski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/224192.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    intermodal transport
    intermodal transshipment terminal
    rolling motorway system
    Rollende Landstrasse
    intermodal pocket wagons system
    transport intermodalny
    intermodalny terminal przeładunkowy
    system autostrad
    intermodalny system wagonów
    Opis:
    The following paper introduces comparison and evaluation of two intermodal transport technologies. The first of them is “rolling motorway” technology, better known as “Rollende Landstrasse” or ”Ro–La”, while the second one is called pocket wagons technology. We present general characteristics of chosen intermodal freight transport technologies in a form of a brief description of both intermodal technologies. Moreover, we describe initial processes, loading and operations in the case of the two mentioned technologies. The paper contains as well as computing example and the schemes of intermodal freight transhipments terminals for “rolling motorway” and pocket wagons technologies and inevitably means of transport to be used in the technologies. The chosen wagon types taken into consideration are as it follows. In case of “Rollende Landstrasse” technology we chose wagon types of 602S, Saadkkms and Saadkms and in case of the second technology the chosen types of wagons are: Sdggmrss, Sdgnss and Sdgmnss. Different kind of wagons in mentioned technologies are pictured and briefly described. Additionally, freight wagons – potentially used in the mentioned technologies – are evaluated with use of selected methods applicable in evaluation of alternatives. Wagons are evaluated under the specified conditions, especially with taking into consideration chosen operational parameters of them. In conclusion we relate to current condition of internal transhipment terminals in Poland and other aspects that concern them.
    Źródło:
    Archives of Transport; 2017, 41, 1; 73-88
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Long-term relationship estimation and coupling/decoupling analysis between motorway traffic and Gross Value Added. Specification of an ARDL cointegration approach and application to the Italian case study
    Autorzy:
    Pampigna, Andrea
    Mauro, Raffaele
    Powiązania:
    https://bibliotekanauki.pl/articles/2067397.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    toll roads
    motorway
    traffic
    cointegration
    transport studies
    error-correction model
    Italian case study
    drogi płatne
    ruch na autostradzie
    kointegracja
    badania transportowe
    model korekcji błędów
    studium przypadku włoskie
    Opis:
    As transportation is an activity derived from spatial complementarities between a certain supply at an origin and a certain demand at a destination, according to a general axiom it seems that economic activities entail transport demand. In this perspective, an essential analysis deals with the quantification of the relationships between transport demand and certain socioeconomic variables. Elasticity is a concept widely used in transport economics as a measure of the responsiveness of transport demand concerning different factors represented as independent variables in an econometric model and coupling/decoupling concepts have been proposed in literature. This paper deals with the estimation of elasticities of motorway traffic demand based on Gross Value Added (GVA), and the consequent investigation of coupling/decoupling situation. The analysis is based on the application of an Autoregressive-Distributed Lag (ARDL) cointegration model with the F-bound test and of the related Error Correction model. Starting from the general ARDL model and the methodology for the verification of its robustness, the same model is applied to the Italian toll road network. The time series of GVA for goods and services and the overall length of the toll network from 1995 to 2019 are considered as explanatory variables of the total annual distance traveled by light and heavy vehicles. The various tests in the ARDL framework show a cointegration between the variables, under the fulfillment of all the diagnostic requirements. In this way, the long-term elasticities and the short-term adjustment dynamics are estimated separately for the goods and services components of GVA, and light and heavy vehicles. Starting from stable estimates of elasticities, the long-term coupling and decoupling effects between motorway traffic of light and heavy vehicles and the national production of goods and services can be shown. The paper, as well as providing an updated picture of the Italian situation, identifies a methodological framework that can be transferred to other contexts for a sector of great interest to investors, such as the motorway sector. All this can be useful to meet the needs of numerous stakeholders, who want to deepen the links between the economic cycle and traffic demand on toll motorways.
    Źródło:
    Archives of Transport; 2021, 60, 4; 39--56
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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