Results 21 to 30 of about 142 (121)

The Passenger Car Equivalent Factors for Heavy Vehicles on Turbo Roundabouts

open access: yesFrontiers in Built Environment, 2019
The presence of heavy and slower vehicles within the traffic stream significantly reduces traffic capacity. This reduction increases with the higher participation of heavy vehicles in the stream, which, compared to passenger cars, move at a lower speed ...
Elżbieta Macioszek   +1 more
exaly   +3 more sources

Turbo-roundabouts vs Roundabouts Performance Level

open access: yesProcedia, Social and Behavioral Sciences, 2012
AbstractIn this paper the performance level of basic turbo-roundabouts and double-lane roundabouts are compared. Cowan's M3 headway distribution was chosen to take into account bunched vehicles moving along each circulating lane; the Hagring model was adopted to evaluate entry capacity both at turbo-roundabout and at double-lane roundabout.The ...
Anna Grana
exaly   +3 more sources

Moving from Conventional Roundabouts to Turbo-roundabouts

open access: yesProcedia, Social and Behavioral Sciences, 2014
AbstractThis paper introduces the turbo-roundabout concept and compares its performance with the conventional double-lane roundabout in terms of safety and capacity. While researchers agree as to the safety benefits of turbo-roundabouts, improvement in terms of capacity is still open to discussion. The application of a new calculation method shows that
Bastos Silva Ana, Luis Vasconcelos
exaly   +2 more sources

Determinants of crash numbers and constellations at turbo roundabouts in Germany

open access: yesTraffic Safety Research
Turbo roundabouts are a relatively new design. Thus far, research on their safety has focused on comparisons with other types of intersection and the effects of physical lane dividers.
Armin Kollascheck   +5 more
doaj   +2 more sources

A theoretical model for evaluating the impact of connected and autonomous vehicles on the operational performance of turbo roundabouts

open access: yesInternational Journal of Transportation Science and Technology
This article presents a methodology to estimate the entry capacity (EC) and total capacity (TC) of basic turbo roundabouts under partial and fully connected and autonomous vehicle (CAV) environments. EC calculations are partially based on capacity models
Marco Guerrieri
exaly   +3 more sources

Problems of ensuring traffic flow on a Basic turbo roundabout with non-standard curvilinear entries (a case study) [PDF]

open access: yesPrzegląd Komunikacyjny, 2023
: With ever-increasing motorisation and the desire for greater traffic safety, conventional roundabouts and turbo roundabouts are being designed. Turbo roundabouts provide greater traffic safety than conventional roundabouts due to the segregation of ...
Alicja Sołowczuk, Weronika Benedysiuk
doaj   +1 more source

THE APPLICATION OF HCM 2010 IN THE DETERMINATION OF CAPACITY OF TRAFFIC LANES AT TURBO ROUNDABOUT ENTRIES [PDF]

open access: yesTransport Problems, 2016
The main aim of this study was to verify whether it is possible to utilize the model contained in the HCM 2010 methodology for evaluation of traffic capacity of the lanes at the entries to turbo roundabouts in Poland. The models contained in the HCM 2010
Elżbieta MACIOSZEK
doaj   +1 more source

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   +2 more sources

Geometric design of turbo roundabouts

open access: yesTehnicki vjesnik - Technical Gazette, 2017
Turbo roundabouts are lately a more common choice in designing multilane roundabouts. First guidelines for geometric design of this particular roundabout layout were developed by a Dutch Information and Technology Platform CROW in 2008. Soon after, a number of European countries began to develop their own regulations on turbo roundabouts, adjusted to ...
Tamara Džambas   +2 more
openaire   +6 more sources

A CASE STUDY ANALYSIS OF ROUNDABOUTS ENTRY CAPACITY LOCALISED ON ONE OF THE MAIN ROAD IN SOSNOWIEC CITY (POLAND) [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2019
This paper is a case study, which among other things includes the analysis of the three roundabouts entry capacity: a turbo- and two spiralroundabouts. These intersections are located in one of the main road localised in Sosnowiec city (Poland).
Elżbieta MACIOSZEK, Agata KUREK
doaj   +1 more source

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