Traffic Reorganisation in Large Roundabouts of Vilnius and its Influence on Traffic Safety

Vytautas Grigonis, Iveta Stanevičiūtė, Vytautas Dumbliauskas


Historically, there are several large roundabouts in Vilnius with traffic organisation and safety problems. Vilnius City Administration initiated changes on these large roundabouts in 2016, by introducing new traffic organisation schemes and using relatively simple measures such as the line markings, safety measures and road signs. The aim of the research is to analyse the number of traffic accidents on the roundabouts before and after such traffic reorganisation. The article is based on accident maps in roundabouts created by the authors. Based on the comparison of accident maps, the safety trends were analysed and summarised.


comparative analysis; roundabouts; traffic accidents; traffic organisation; traffic safety; Vilnius

Full Text:



BTA, Insurance Company. (17 October 2016). Avaringiausiuose Vilniaus žieduose – mažiau aiškinimosi, kas kaltas. [Less Time for the Search of Culprit in the Most Dangerous Roundabouts of Vilnius]. Retrieved from about/news/avaringiausiuose-vilniaus-zieduose-maziau-aiskinimosi-kas-kaltas [in Lithuanian].

Dumbliauskas, V., Grigonis, V., & Barauskas, A. (2014). Operational Study of Roundabouts and Signal-Controlled Intersections in Kaunas City. In Proceedings of the 9th International Conference “Environmental Engineering 2014. Environmental Engineering. ICEE (vol. 9, pp. 1–6). Vilnius Gediminas Technical University, Department of Urban Engineering. ISBN 978-6094-57-640-9.

Gallelli, V., & Vaiana, R. (2019). Safety Improvements by Converting a Standard Roundabout With Unbalanced Flow Distribution Into an Egg Turbo Roundabout: Simulation Approach to a Case Study. Sustainability, 11(2), 466.

Gallelli, V., Iuele, T., & Vaiana, R. (2016). Conversion of a Semi-Two Lanes Roundabout Into a Turbo-Roundabout: A Performance Comparison. Procedia computer science, 83, 393–400.

LD, Insurance Company. (16 October 2018). Vilniaus žiedinių sankryžų baubai nyksta. [The bugaboos of Vilnius roundabouts are disappearing]. Retrieved from [in Lithuanian].

Pratelli, A., Sechi, P., & Roy Souleyrette, R. (2018). Upgrading Traffic Circles to Modern Roundabouts to Improve Safety and Efficiency–Case Studies From Italy. Promet-Traffic & Transportation, 30(2), 217–229.

Russo, F., Antonio Biancardo, S., & Veropalumbo, R. (2020). Analytical Assessment of Effective Maintenance Operations on At-Grade Unsignalized Intersections. Transportation Systems Analysis and Assessment, 1–20.

Sivilevičius, H., Paliulis, G., Klibavičius, A., & Palevičius, V. (2015). Research on the Operation of Roundabouts Based on the Sustainable Development Principles. The Baltic Journal of Road and Bridge Engineering, 10(2), 166–173.

The Department of Statistics. (2018). Population and Social Statistics. Retrieved from

Tollazzi, T. (2015). Origins of Roundabouts. In Alternative Types of Roundabouts (pp. 1–9). Cham: Springer.

Transport Excellence Agency. (2014). Black Spots in Vilnius. Retrieved from¬pis-pilotinis-pr.pdf

Vilnius city municipality. (2019). Master Plan of Vilnius. Retrieved from https://¬jos-m50000-2019-08-07.pdf

Wan, H., Chen, X., & Du, Z. (2019). Improving Safety and Efficiency of Roundabouts Through an Integrated System of Guide Signs. Sustainability, 11(19), 5202.

Wong, S. C., Sze, N. N., Loo, B. P., Chow, A. S., Lo, H. K., & Hung, W. T. (2012). Performance Evaluations of the Spiral-Marking Roundabouts in Hong Kong. Journal of transportation engineering, 138(11), 1377–1387.

Žilionienė, D., Oginskas, R., & Petkevičius, K. (2010). Research, Analysis and Evaluation of Roundabouts Constructed in Lithuania. The Baltic Journal of Road and Bridge Engineering, 5(4), 240–245.

DOI: 10.7250/bjrbe.2020-15.483


  • There are currently no refbacks.

Copyright (c) 2020 Vytautas Grigonis, Iveta Stanevičiūtė, Vytautas Dumbliauskas

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.