Results 1 to 10 of about 142 (121)
Promet (Zagreb), 2017 This paper compared the performance of elliptical roundabout with turbo and modern roundabouts. It considers the effects of increasing the central island radius and speed limit on delay and capacity.
Hadi Hatami, Iman Aghayan
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Multi-criteria comparative assessment of unconventional roundabout designs
International Journal of Transportation Science and Technology, 2022 Roundabout design has been evolving to include versatile types that target specific characteristics of each considered location. They started addressing maneuverability issues and directional splits, among other factors.
Abdul Razak Alozi, Mohamed Hussein
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Evaluation of the environmental impacts of bus rapid transit system on turbo roundabout
Transportation Engineering, 2022 The public transportation system is significant in increasing the efficiency of urban mobility in metropolitan cities, especially when transportation infrastructures are involved.
Alessandro Severino +4 more
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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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Estimation of Passenger Car Equivalents for Two-Lane and Turbo Roundabouts Using AIMSUN
Frontiers in Built Environment, 2020 The paper addresses issues related to Passenger Car Equivalents (PCEs) at roundabouts. Compared to other road units, the curvilinear elements of roundabout geometric design may impose greater constraints on vehicular trajectories and have a significant ...
Anna Granà +3 more
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Capacity Model for Single-Lane Minor Entry at Turbo-Roundabouts
Civil and Environmental Engineering, 2021 Spirally arranged and physically separated traffic lanes in the circulatory carriageway of turbo-roundabouts force drivers to choose a particular entry lane and, subsequently, a circulatory traffic lane according to their intended destination.
Kociánová Andrea
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Multi-lane Roundabout Capacity Evaluation
Frontiers in Built Environment, 2017 Although two-lane roundabouts theoretically exhibit excellent operating performance, in practice, safety problems arise because of inappropriate driving behavior.
Ammar Šarić, Ivan Lovrić
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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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Microsimulation-based passenger car equivalents for heavy vehicles driving turbo-roundabouts
Transport, 2016 Due to its geometric design, turbo-roundabouts impose greatest constraints to the vehicular trajectories; by consequence, one can expect a more unfavourable impact of heavy vehicles on the traffic conditions than on other types of roundabouts.
Orazio Giuffrè +3 more
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Performance Evaluation of a Hybrid Roundabout Using a Microscopic Simulation
The Baltic Journal of Road and Bridge Engineering, 2021 Roundabouts are one of the safest types of intersections. There are a number of roundabout types in literature. Each roundabout type is distinguished by some characteristics.
Yavuz User +2 more
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