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Wyświetlanie 1-2 z 2
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 1-2 z 2

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