Results 1 to 10 of about 142 (122)
Methodological frontier in operational analysis for roundabouts: a review
Frontiers in Built Environment, 2016 Several studies and researches have shown that modern roundabouts are safe and effective as engineering countermeasures for traffic calming, and they are now widely used worldwide.
Orazio Giuffre' +2 more
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New Type of Roundabout: Roundabout with “Depressed” Lanes for Right Turning – “Flower Roundabout”
Promet (Zagreb), 2011 Recently, many of the foreign traffic-safety analyses point out the low level of traffic safety in multi-lane roundabouts. This problem is resolved in several ways in different countries; however, the solution, whereby the number of conflict points is ...
Tomaž Tollazzi +2 more
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Urban ScienceThis study focuses on optimizing traffic flow at uncontrolled intersections by comparing the effectiveness of different intersection types: roundabouts, signal-controlled intersections, and turbo-roundabouts. The purpose is to determine which type offers
Alica Kalašová +3 more
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Performance Assessment of Turbo-roundabouts in Corridors
Transportation Research Procedia, 2015 AbstractThere is a widespread agreement in the scientific community that the transformation of a conventional multi-lane roundabout into a turbo-roundabout results in a significant increase of road safety levels. However there is no consensus regarding its effect in terms of capacity, as there are some authors that point towards a small reduction in ...
Silva, Ana Bastos +2 more
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Интеллект. Инновации. Инвестиции, 2020 In large cities, a situation often arises when roundabout intersections of highways no longer cope with the passage of traffic flows. The main reasons for this problem are the inconsistency of the potential traffic capacity of the roundabout with real ...
V. I. Rassokha , N. A. Nikitin
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Capacity of normal and turbo-roundabouts: comparative analysis [PDF]
Proceedings of the Institution of Civil Engineers - Transport, 2014 While researchers agree as to the safety benefits of turbo-roundabouts, their improvements in terms of capacity and delay remain open to discussion. This is mostly because previous research is based on capacity models that do not fully describe the complex interactions between traffic streams on multi-lane roundabouts.
Vasconcelos, Luís +2 more
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Evaluation of Roundabout Safety Performance through Surrogate Safety Measures from Microsimulation
Journal of Advanced Transportation, 2018 The paper presents a microsimulation-based approach for roundabout safety performance evaluation. Based on a sample of Slovenian roundabouts, the vehicle trajectories exported from AIMSUN and VISSIM were used to estimate traffic conflicts using the ...
Orazio Giuffrè +6 more
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Unconventional Roundabouts: Third-Generation Insights from the United States and Europe
Urban ScienceThis paper presents a comparative analysis of unconventional roundabouts, commonly referred to as third-generation roundabouts, based on case studies from the United States and Europe, specifically Croatia and Italy.
Lorenzo Brocchini +7 more
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The Surrogate Safety Appraisal of the Unconventional Elliptical and Turbo Roundabouts
Journal of Advanced Transportation, 2018 Double-lane roundabouts have been created in many European countries over the past few centuries and are now characterized by an unsafe geometric development and by a low sustainability capacity or level.
Giovanni Tesoriere +3 more
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Transportation Research Interdisciplinary PerspectivesTraffic congestion remains a significant problem, especially in urban areas. To avoid congestion phenomena, several measures can be adopted, including the construction of roundabouts and the control of the measures of effectiveness (MOEs) at ...
Marco Guerrieri
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