Review of Capacity Estimation at Unsignalized Intersections in the Indian Context

  • Manish DuttaEmail author
  • Mokaddes Ali Ahmed
Conference paper
Part of the Learning and Analytics in Intelligent Systems book series (LAIS, volume 12)


Unsignalized intersections in developing countries like India are characterized by mixed traffic conditions and aggressive driving behavior. Due to lack of explicit priority rules, drivers behave erratically which create chaos and eventually lead to undue delay of vehicles. Existing capacity estimation models had been originally formulated in developed countries where traffic is homogeneous and drivers generally follow traffic rules. The traffic characteristics prevalent in developing countries were not considered by researchers while developing these capacity estimation methods. Thus, it is essential to develop a suitable capacity estimation method for countries like India that addresses the field traffic characteristics. In this paper, a review of the existing capacity estimation methods at unsignalized intersections is conducted. Based on this review, various aspects of mixed traffic conditions that need to be considered for capacity estimation in the Indian context is recommended at the end.


Unsignalized intersection Capacity Mixed traffic Aggressive driving behavior 


  1. 1.
    Babones, S.: India Will Outgrow China In 2018, But Must Invest In Next-Generation Value Chains To Succeed.
  2. 2.
    Pollard, A.: The Indian Automotive Industry: Growth and Opportunities.
  3. 3.
  4. 4.
    Brilon, W., Wu, N.: Capacity at unsignalized intersections derived by conflict technique. Transp. Res. Rec. 1776, 82–90 (2001). Scholar
  5. 5.
    Kimber, R., Coombe, R.: The traffic capacity of some major priority junctions. Transp. Road Res. Lab. Suppl. Rep. 582 (1980)Google Scholar
  6. 6.
    Harders, J.: Die Leistungsfähikeit nicht signalgeregelter staädtischer Verkehrsknoten (The performance of non-signal-controlled urban transport hubs), Bonn (1968)Google Scholar
  7. 7.
    Brilon, W., Koenig, R.: Useful Estimation Procedures for Critical Gaps (2011).
  8. 8.
    HCM: Highway Capacity Manual. Transportation Research Board, National Research Council, Washington, D.C. (2010)Google Scholar
  9. 9.
    Brilon, W., Wu, N.: Unsignalized intersections - a third method for analysis. In: Proceedings of the 15th International Symposium on Transportation and Traffic Theory, pp. 157–178. Pergamon-Elsevier Publications, Adelaide (2002)Google Scholar
  10. 10.
    Ashalatha, R., Chandra, S.: Critical gap through clearing behavior of drivers at unsignalised intersections. KSCE J. Civ. Eng. 15, 1427–1434 (2011). Scholar
  11. 11.
    Patil, G.R., Sangole, J.P.: Behavior of two-wheelers at limited priority uncontrolled T-intersections. IATSS Res. 40, 7–18 (2016). Scholar
  12. 12.
    Dutta, M., Ahmed, M.A.: Gap acceptance behaviour of drivers at uncontrolled T-intersections under mixed traffic conditions. J. Mod. Transp. (2017). Scholar
  13. 13.
    Brilon, W., Wu, N.: Capacity at unsignalized two-stage priority intersections. Transp. Res. A 33, 275–289 (1999). Scholar
  14. 14.
    Wu, N.: Capacity of shared-short lanes at unsignalized intersections. Transp. Res. Part A Policy Pract. 33, 255–274 (1999). Scholar
  15. 15.
    Wu, N.: A universal procedure for capacity determination at unsignalized (priority-controlled) intersections. Transp. Res. Part B Methodol. 35, 593–623 (2001)CrossRefGoogle Scholar
  16. 16.
    Brilon, W., Miltner, T.: Capacity at intersections without traffic signals. Transp. Res. Rec. J. Transp. Res. Board, 32–40 (2005).
  17. 17.
    Gleue, A.W.: Vereinfachtes verfahren zur Berechnung signalgeregelter Knotenpunkte. Bundesminister für Verkehr, Abt. Strassenbau (1972)Google Scholar
  18. 18.
    Grossmann, M.: Methoden zur Berechnung und Beurteilung von Leistungsfähigkeit und Verkehrsqualität an Knotenpunkten ohne Lichtsignalanlagen. Schriftenr. LEHRSTUHL FUER Verkehrswes. I (1991)Google Scholar
  19. 19.
    Dutta, M., Ahmed, M.A.: Calibration of VISSIM models at three-legged unsignalized intersections under mixed traffic conditions. Adv. Transp. Stud. Int. J. 48, 31–46 (2019)Google Scholar
  20. 20.
    Mathew, T.V., Radhakrishnan, P.: Calibration of microsimulation models for nonlane-based heterogeneous traffic at signalized intersections. J. Urban Plan. Dev. 136, 59–66 (2010)CrossRefGoogle Scholar
  21. 21.
    Siddharth, S.M.P., Ramadurai, G.: Calibration of VISSIM for Indian heterogeneous traffic conditions. Procedia Soc. Behav. Sci. 104, 380–389 (2013)CrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Department of Civil EngineeringNational Institute of Technology SilcharSilcharIndia

Personalised recommendations