Advanced SearchSearch Tips
A Study on Dynamic Signal Metering Operation Method for Roundabouts Using VISSIM
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
A Study on Dynamic Signal Metering Operation Method for Roundabouts Using VISSIM
Lee, Sol; Ahn, Woo-Young;
  PDF(new window)
After installing roundabouts, changes of travel behaviour in the vicinity of roundabouts can cause increasing traffic volumes and unbalanced flow conditions. In that cases, the efficiency of roundabouts as a whole intersections can drop due to the insufficient gap between vehicles in the circulating lanes. The purpose of this study is developing a dynamic signal metering operation method for roundabouts in which a real time Signal Metering operation algorithm is suggested and its performance is tested by using VISSIM COM Interface(Visual Basic Application). The results of the real time Signal Metering operation show that there is a substantial delay improvements when two adjoined approaches are combined together and the flows of metering approach are less than controlling approach. Especially, the total entering flow is around 1,600 vehicle/h gives the delay reduction per vehicle of 70.9~102.2(73.8~77.8%) seconds for four-lane-approach with one-lane roundabouts.
Roundabouts;Unbalanced Flow;Dynamic Signal Metering;VISSIM;COM Interface;
 Cited by
Ministry of Land, Transport and Maritime, Korea(2013), Highway Capacity Manual, pp.490-521.

Ministry of Land(2014), Infrastructure and Transport, Korea, Roundabouts Design Manual.

Akcelik R.(2004), "Roundabouts with unbalanced flow patterns," ITE 2004 Annual Meeting, Lake Buena Vista, Florida, USA, August 1-4.

Ahn W. Y.(2012), "A Study on Roundabout Signal Metering Operation by Considering Entry Lane's Traffic Volume," International Journal of Highway Engineering, vol. 14, no. 2, pp.175-181.

Ahn W. Y., Lee S. Y. and Ahn G. G.(2011), "A Study on Signal Metering Performance Analysis for Roundabouts," Journal of Transport Research, vol. 18, no. 2, pp.1-11.

Akcelik R.(2005), "Capacity and Performance Analysis of Roundabout Metering Signals," TRB National Roundabout Conference, vail, Colorado, USA, 22-25 May.

Ahn W. Y. and Lee S. Y.(2013), "Roundabout Signal Metering Operation Methods by Considering Approach Lane's Degree of Saturation," International Journal of Highway Engineering, vol. 15, no. 5, pp.217-226. crossref(new window)

Lee H. S.(2013), "A Study on The Effective Operation Strategy of Signalized Roundabouts," Graduate School of Gachon University, pp.57-59.

Park J.(2015), "Development of an Application for Signal Metering on Roundabouts," Graduate School of The University of Seoul, pp.48-49.

Natalizio E.(2005), "Roundabouts with Metering Signals," Institute of Transportation Engineers 2005 Annual Meeting, Melbourne, Australia, August.