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    Wyświetlanie 1-3 z 3
    Tytuł:
    An impact of gap acceptance on road safety: A critical systematic review
    Autorzy:
    Bhatt, Khushbu
    Shah, Jiten
    Powiązania:
    https://bibliotekanauki.pl/articles/2141217.pdf
    Data publikacji:
    2022
    Wydawca:
    Fundacja Centrum Badań Socjologicznych
    Tematy:
    gap acceptance
    uncontrolled intersection
    critical gap
    crashes
    accidents
    Opis:
    An uncontrolled intersection is a critical area for crashes that depends on macroscopic traffic parameters. While the intersection is the potential of the center of crashes due to inappropriate decision of driver. Therefore, the study focuses on the effect of the gap acceptance parameter for the safety of drivers at an uncontrolled intersection. To examine, a systematic review of the literature is implemented to understand the different parameters, their impact, and models developed by the researchers. Additionally, it is demonstrated that the crashes are highly affected by the gap acceptance and the different models are formed to estimate the critical gap for different road sections under homogeneous and heterogeneous traffic conditions. However, it is not possible to definitively conclude the best model to evaluate the gap acceptance factor but can be preferred to reduce the severity of crashes. Nonetheless, most studies remain inconclusive, there is an emerging trend in the literature suggesting the increase of the crash risk at an uncontrolled intersection. Lastly, it is most important to mention the model suitability based on empirical studies commenced under the strong limitations. Consequently, there is a need for research in this area to correlate the gap acceptance with road safety to reduce the severity of accidents to improve the existing transportation system.
    Źródło:
    Journal of Sustainable Development of Transport and Logistics; 2022, 7, 1; 6-22
    2520-2979
    Pojawia się w:
    Journal of Sustainable Development of Transport and Logistics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Estimation of critical gaps and follow-up times at median uncontrolled T-intersection
    Autorzy:
    Barchański, Adrian
    Żochowska, Renata
    Powiązania:
    https://bibliotekanauki.pl/articles/2067407.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    transportation system
    efficiency of system
    uncontrolled intersection
    critical gap
    follow-up time
    Siegloch method
    system transportowy
    sprawność systemu
    skrzyżowanie niekontrolowane
    metoda Sieglocha
    Opis:
    The efficiency of the entire transportation system depends on the capacity of the individual elements that make up the given network. Point-type elements of the road and street network include intersections of different types. Critical gaps and follow-up times related to individual movements are important determinants of the capacity of such objects. There are many ways to estimate such times. The article discusses the assumptions and scheme one of them - the Siegloch method. The objective of the article is to analyze the process of determining critical gaps and follow-up times at the median uncontrolled T-intersections that are rare in the road and street network and have been studied to a limited extent. The commonly used HCM, HBS, and Polish (MOP SBS) methods in their current form do not consider the specificity of such intersections and thus may not give reliable results. Due to their characteristics in terms of geometry conditions, there is a need for an individual approach to estimate both critical gaps and follow-up times. The article contains the results of empirical research conducted on a selected real object in the Upper Silesian agglomeration in Poland. The intersection under study is located in one of the central districts of Katowice city, in the built-up area serving commercial and service functions. The analysis of the behavior of individual drivers waiting for the possibility to continue driving was conducted separately for each minor traffic movement. The values of critical gaps and follow-up times were determined for all four subordinate movements. The values obtained are different from those contained in the Polish manual, which is recommended for use. The research should be considered as pilot studies that justify the need to develop a separate approach to the estimation of the critical gaps and follow-up times at median uncontrolled T-intersections.
    Źródło:
    Archives of Transport; 2021, 60, 4; 105--124
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Practical aspects of measuring critical gaps and follow-up times at median uncontrolled T-intersections
    Autorzy:
    Barchański, Adrian
    Żochowska, Renata
    Powiązania:
    https://bibliotekanauki.pl/articles/2091231.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    uncontrolled intersection
    measurement of traffic characteristics
    gap acceptance theory
    critical gap
    follow-up time
    skrzyżowanie niekontrolowane
    pomiar charakterystyki ruchu
    teoria akceptacji luki
    luka krytyczna
    czas obserwacji
    Opis:
    Estimation of critical gaps and follow-up times between vehicles at uncontrolled intersections is an essential step in estimating the capacity of these objects and assessment of traffic conditions. Therefore, measurements of these parameters should be properly prepared and implemented. This paper presents issues related to the performance of field tests at median uncontrolled T-intersection. Measurements included both critical gaps and follow-up times. Based on the collected material, the authors identified problems occurring during traffic observation. Analyzed intersections were located both within and outside built-up areas. Furthermore, this article discusses the influence of selected factors on the accuracy of estimating the critical gaps and follow-up times and formulates the principles of conducting traffic measurements at selected types of intersections.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2021, 113; 17--28
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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