Geometrical Determinants of Car Equivalents for Heavy Vehicles Crossing Circular Intersections

  • Elżbieta Macioszek
Part of the Communications in Computer and Information Science book series (CCIS, volume 329)


Individual groups of vehicles affect the conditions of traffic streams to different extent. For a given group of vehicles, this effect should be approached as a variable determined by some geometrical and traffic properties. This impact can be estimated by using one of the models used for the purpose. One of such models is a model based on comparisons speed of group of vehicles in traffic stream. This paper presents the results of the measurements of the spatial average velocity of vehicles that cross circular intersections (usually roundabouts) and the analyses of the effect of selected geometrical parameters on the velocity of vehicles crossing an intersection and consequently the car equivalents for heavy vehicles.


circular intersections roundabouts passenger car equivalents 


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  1. 1.
    Benekohal, R., Zhao, W.: Delay-Based Passenger Car Equivalents for Trucks at Signalized Intersections. Transportation Research Part A 34, 437–457 (2000)Google Scholar
  2. 2.
    Chandra, S., Kumar, U.: Effect of Lane Width on Capacity Under Mixed Traffic Conditions in India. Journal of Transportation Engineering 129(2), 155–160 (2003)CrossRefGoogle Scholar
  3. 3.
    Highway Capacity Manual 2000. TRB, Highway Capacity Committee, Washington (2000)Google Scholar
  4. 4.
    HBS. Handbuch fur die Bemessung von StraBenverkehrsanlageb. Forschungsgesellschaft fur StraBen und Verkehrswesen e.V., Koln (2001) Google Scholar
  5. 5.
    Logghe, S., Immers, L.H.: Heterogeneous Traffic Flow Modelling with the LWR Model Using Passenger Car Equivalents. In: Proceedings of the 10th World Congress on ITS, Madrid (2003)Google Scholar
  6. 6.
    Macioszek, E.: Analiza Wpływu Stopnia Obciążenia Ruchem na Wartość Współczynnika Przeliczeniowego dla Pojazdów Ciężkich na Skrzyżowaniach Typu Rondo. Logistyka 6, 2071–2079 (2010)Google Scholar
  7. 7.
    Macioszek, E.: The Passenger Car Equivalent Factor for Heavy Vehicles on Roundabouts. In: Janecki, R., Sierpiński, G. (eds.) Contemporary Transportation Systems. Selected Theoretical and Practical Problems. The Development of Transportation Systems. Monograph, vol. 256, pp. 127–137. Wydawnictwo Politechniki Śląskiej, Gliwice (2010)Google Scholar
  8. 8.
    Sachdeva, S.: Speed-Flow Relationship and Capacity Analysis for an Identified Intercity Road Network. Kurukshetra University, India (2004)Google Scholar
  9. 9.
    Sierpiński, G.: Travel Behaviour and Alternative Modes of Transportation. In: Mikulski, J. (ed.) TST 2011. CCIS, vol. 239, pp. 86–93. Springer, Heidelberg (2011)CrossRefGoogle Scholar
  10. 10.
    Sierpiński, G., Celiński, I.: Koncepcja Użycia Technologii Sieci GSM do Identyfikacji Przemieszczeń w Miastach. Logistyka – Nauka 6, 2663–2669 (2011)Google Scholar
  11. 11.
    Stanley, J.: Passenger Car Equivalents of Trucks Under Lane Restriction and Differential Speed Limit Policies on Four Lane Freeways. University of Kerala, Kerala (2009)Google Scholar
  12. 12.
    Tracz, M., Chodur, J.: Metoda Obliczania Przepustowości Rond – Instrukcja Obliczania. GDDKiA, Warszawa (2004)Google Scholar
  13. 13.
    Verweij, C., et al.: Roundabouts-Application and Design. A Practical Manual. Ministry of Transport, Netherlands (2009)Google Scholar
  14. 14.
    Webster, N., Elefteriadou, L.: A Simulation Study of Passenger Car Equivalents (PCE) on Basic Freeway Sections. Transportation Research Part B 33, 323–336 (1999)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Elżbieta Macioszek
    • 1
  1. 1.Faculty of TransportSilesian University of TechnologyKatowicePoland

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