Comparison of Traffic Flow Characteristics of Signal Controlled Intersection and Turbo Roundabout
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Department of road and urban transport, University of Žilina, Slovak Republic
Simona Skřivánek Kubíková   

Department of road and urban transport, University of Žilina, Slovak Republic
Publication date: 2020-06-30
Submission date: 2020-01-29
Final revision date: 2020-04-27
Acceptance date: 2020-05-12
The Archives of Automotive Engineering – Archiwum Motoryzacji 2020;88(2):19–36
In the Slovak republic, there is an increase of building roundabouts in both urban and non-build-up areas. The construction of roundabouts in urban areas brings mainly calming of traffic intensity. A roundabout in non-build-up areas could be built only within certain conditions. In this paper, we have been studying a small roundabout location and its traffic characteristics in the city of Hlohovec. In some cases, a small roundabout could be very good solution for exceeded traffic flow capacity of signal controlled intersections as well as for intersections with a high number of traffic incidents. But in our case, a small roundabout is not suitable for such intensity of vehicles as we measured in transport survey. So we focused on other possibilities how to improve this current situation. We have decided to make a proposal of signal controlled intersection as well as a turbo roundabout and compare the results of traffic characteristics of each proposal. We have made several simulations of each variant of traffic situation, using transport-planning software Aimsun, and calculate average values of all recorded traffic characteristics. As inputs, we have used intensities and other basic data obtained from transport survey. Using simulations outputs of transport planning software, we have been able to compare a current state with signal controlled intersection and turbo roundabout. Traffic characteristics of turbo roundabout show significant improvements compare to signal controlled intersection, f.e. in delay time (more than 68 %), travel time (more than 22 %), number of stops (more than 73 %). Turbo roundabout seems to be the best solution for traffic organising at this chosen intersection in the city of Hlohovec, regarding travel time, delays, number of stops and safety at all.
Aboud G.M., Abdulwahab A.M., Banyhussan Q.S., Zubaidi H.A.: A Case Study on Roundabout under Congestion: Proposal to Improve Current Traffic Operation. Civil engineering journal-Tehran. 2019, 5, 2029–2040, DOI: 10.28991/cej-2019-03091391.
Barcelo J., Codina E., Casas J., Ferrer J., Garcia D.: Microscopic traffic simulation: A tool for the design, analysis and evaluation of inteligent transport systems. Journal of Intelligent and Robotic Systems. 2005, 41(2-3), 173–203, DOI: 10.1007/s10846-005-3808-2.
Barta D., Mruzek M.: Factors influencing the hybrid drive of urban public transport buses. Management Systems in Production Engineering. 2015, 20, 213–218, DOI: 10.12914/MSPE-04-04-2015.
Čulík K., Kalašová A., Kubíková S.: Simulation as an instrument for research of driver vehicle interaction. MATEC web of conferences, LOGI 2017 18th international scientific conference. 2017, 134, 00008, DOI: 10.1051/matecconf/201713400008.
Dambach T., Gottlich S., Knapp S.: Car path tracking in traffic flow networks with bounded buffers at junctions. Mathematical methods in the applied sciences. 2019, 43(6), 3331–3353, DOI: 10.1002/mma.6121.
Elhassy Z., Abou-Senna H., Shaaban K., Radwan E.: The Implications of Converting a High-Volume Multilane Roundabout into a Turbo Roundabout. Journal of advanced transportation. 2020, 5472806, DOI: 10.1155/2020/5472806.
Fortuijn L.: Turbo roundabouts: estimation of capacity. Transportation Research Record: Journal of the Transportation Research Board. 2009, 2130, 83–92, DOI: 10.3141/2130-11.
Gnap J., Konečný V.: The Impact of a Demographic Trend on the Demand for Scheduled Bus Transport in the Slovak Republic. Communications: Scientific Letters of the University of Žilina. 2008, 10(2), 55–59.
Havel K., Bálint V., Novák A.: A number of conflicts at route intersections - rectangular model. Communications: Scientific Letters of the University of Žilina. 2017, 19(2), 145–147.
Konečný V., Petro F.: Calculation of emissions from transport services and their use for the internalisation of external costs in road transport. Procedia Engineering. 2017, 192, 677–682, DOI: 10.1016/j.proeng.2017.06.117.
Kong X., Yang J.: A scenario-based map-matching algorithm for complex urban road network. Journal of intelligent transportation systems. 2019, 23(6), 617–631, DOI: 10.1080/15472450.2019.1586543.
Korfant M., Gogola M.: Possibilities of using traffic planning software in Bratislava. Procedia Engineering. 2017, 192, 433–438, DOI: 10.1016/j.proeng.2017.06.075.
Kupčuljaková J.: Possibilities of ensuring urban public transport priority. Archives of transport system telematics. 2012, 5(4), 12–16.
Ližbetin J., Stopka O.: Proposal of a Roundabout Solution within a Particular Traffic Operation. Open engineering. 2016, 6(1), 441–445, DOI:10.1515/eng-2016-0066.
Macioszek E., Kurek A.: A case study analysis of roundabouts entry capacity localised on one of the main road in Sosnowiec city (Poland). Scientific Journal of Silesian University of Technology. Series Transport. 2019, 105, 139–156, DOI: 10.20858/sjsutst.2019.105.12.
Meszaros F., Markovits-Somogyi R., Bokor Z.: Modelling and multicriteria optimization of road traffic flows considering social and economic aspects. Logi - Scientific Journal on Transport and Logistics, 2012, 3, 70–82.
Ondruš J., Paľo J.: The modelling of transportation and transport processes of the region of Žilina. Advances in transport systems telematics 2. Section V: Systems in road transport - Katowice: Silesian University of Technology, 2007, 29–37, ISBN 978-83-917156-6-6.
Rievaj V., Synák F.: Does electric car produce emissions? Scientific Journal of Silesian University of technology. Series Transport. 2017, 94, 187–197, DOI: 10.20858/sjsutst.2017.94.17.
Rievaj V., Vrábel J., Synák F., Bartuška L.: The Effects of Vehicle Load on Driving characteristics. Advances in Science and Technology - Research Journal. 2018, 12, 142–149, DOI: 10.12913/22998624/80896.
Skrúcaný T., Harantova V., Kendra M., Barta D.: Reducing energy consumption by passenger car with using of non-electrical hybrid drive technology. Advances in Science and Technology-Research Journal. 2017, 11(1), 166–172, DOI: 10.12913/22998624/66505.
Skrúcaný T., Šarkan B., Figlus T., Synák F., Vrábel J.: Measuring of noise emitted by moving vehicles. Conference on Dynamics of Civil Engineering and Transport Structures and Wind Engineering (DYN-WIND). 2017, 107, DOI: 10.1051/matecconf/201710700072.
Skvain V., Petru J., Krivda V.: Turbo – roundabouts and their Basic Evaluation at Realized Constructions in Czech Republic. Procedia Engineering: Structural and Physical Aspects of Construction Engineering. 2017, 190, 283–290, DOI: 10.1016/j.proeng.2017.05.339.
Technical conditions no. 102: Calculation of road communications capacity. Ministry of Transport and Construction of the Slovak Republic, 2015.
Tollazzi T., Turnšek S., Renčelj M.: Slovenian experiences with turbo-roundabouts. Proceedings of the 3rd International Conference on Roundabouts. USA, 2011.
TSS-Transport simulation systems: Aimsun 8 Adaptive Control Interfaces Manual, 2015.