Results 21 to 30 of about 464 (157)

Turbo Roundabouts

open access: yesTransportation Research Record: Journal of the Transportation Research Board, 2009
The Dutch turbo roundabout is characterized by predictable lane use and radial connecting entries. To calculate the capacity, in 1997 the multilane roundabout explorer was developed by modification of the capacity model of Bovy, which considered both separated lanes and pseudoconflict.
Lambertus G. H. Fortuijn
core   +3 more sources

Traffic Efficiency Evaluation of Elliptical Roundabout Compared with Modern and Turbo Roundabouts Considering Traffic Signal Control

open access: yesPromet (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
doaj   +3 more sources

Evaluation of the environmental impacts of bus rapid transit system on turbo roundabout

open access: goldTransportation 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
doaj   +2 more sources

The Surrogate Safety Appraisal of the Unconventional Elliptical and Turbo Roundabouts [PDF]

open access: goldJournal 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
doaj   +2 more sources

Using a Microsimulation Traffic Model and the Vehicle-Specific Power Method to Assess Turbo-Roundabouts as Environmentally Sustainable Road Design Solutions [PDF]

open access: goldFuture Transportation
The European Union’s path towards zero carbon dioxide emissions for new passenger vehicles necessitates a transitional period in which conventional vehicles coexist with zero-emission alternatives.
Apostolos Anagnostopoulos   +5 more
doaj   +2 more sources

An Analysis of Turbo Roundabouts from the Perspective of Sustainability of Road Transportation [PDF]

open access: yesSustainability, 2021
The designs of turbo roundabouts vary among countries and undesirable and potentially dangerous situations can occur for vehicles passing through the roundabout. In this article, we focus on an analysis of one of the problems within sustainable road transportation, i.e., the geometric layout of turbo roundabouts.
Jan Petru, Vladislav Krivda
openaire   +4 more sources

Comparative Analysis of "Turbo", "Reduced-Turbo", "Flower" and "Semi-Turbo" Roundabout

open access: yesTehnički vjesnik, 2020
A growing number of studies, presented in scientific and professional literature, point out a poor traffic safety characteristic of "standard" two-lane roundabouts, and lower capacity than expected. These problems are resolved in different ways in different countries; however, the most successful solution has proven to be reducing the number of ...
Tollazzi, Tomaž   +3 more
openaire   +5 more sources

Microsimulation-based passenger car equivalents for heavy vehicles driving turbo-roundabouts [PDF]

open access: yesTransport, 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
doaj   +2 more sources

Capacity of normal and turbo-roundabouts: comparative analysis [PDF]

open access: yesProceedings 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
openaire   +3 more sources

Optimization of Traffic at Uncontrolled Intersections: Comparison of the Effectiveness of Roundabouts, Signal-Controlled Intersections, and Turbo-Roundabouts

open access: yesUrban Science
This 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
doaj   +2 more sources

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