Results 11 to 20 of about 5,725 (291)
Turbo-roundabouts vs Roundabouts Performance Level [PDF]
Procedia - 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 ...
GIUFFRE', Orazio +2 more
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Comparing Performances of Turbo-roundabouts and Double-lane Roundabouts
Modern Applied Science, 2012 Starting from assumptions regarding the arrival process of circulating streams and according to models based on the gap-acceptance theory, the paper is aimed at comparing operational performances between basic turbo-roundabouts and double-lane roundabouts.
Orazio Giuffrè +2 more
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The Capacity Limits of Roundabouts
Communications, 2014 According to the manuals for the capacity calculation and evaluation of roundabouts it is possible to calculate and evaluate the capacity of roundabout entries only under particular traffic conditions.
Andrea Kocianova
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A computer simulation study of the effects of flaring and turning movements on roundabout entry performance. [PDF]
, 1982 This thesis reports on an investigation carried out to study the effect of flaring and turning movements on the performance of roundabout entries. A computer simulation program was developed to carry out the investigation.
Natsinas, Theodoros
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Developing crash modification factors for roundabouts using a cross-sectional method [PDF]
, 2020 The objective of the current study was to evaluate traffic and geometric features and their influences on the safety performance of roundabouts by developing suitable crash modification factors (CMFs).
Ayers, Ron +2 more
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BMJ, 2006 It is 2015, and what goes around has come around several times in the past 10 years. Back in 2005, Zebedee, or whoever it was who spun the magic roundabout from the Department of Health, seemed confused about the difference between change and progress. Change produced instant good-news stories but constant disruption within the health service. Progress
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ROUNDABOUTS IN JAPAN – SURVEYING, PROBLEMS AND ISSUES [PDF]
Scientific Journal of Silesian University of Technology. Series Transport, 2019 A roundabout is not a popular intersection type in Japan. Vehicular traffic at most road crossings are controlled by traffic lights. This article comments upon a survey of Japanese roundabouts along with their numerical characteristics concerning, among ...
Elżbieta MACIOSZEK
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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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New Type of Roundabout: Roundabout with “Depressed” Lanes for Right Turning – “Flower Roundabout”
Promet - Traffic&Transportation, 2012 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 diminished (e.g. turbo roundabout) has proven to be the most successful. However, the turbo roundabout
Tollazzi, Tomaž +2 more
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Comparative Analyse of the Two New Alternative Types of Roundabouts – Turbo and Flower Roundabout
The Baltic Journal of Road and Bridge Engineering, 2014 Alternative types of roundabouts are usually more recent and have been implemented only in certain countries. Typically, they differ from “standard” roundabouts in one or more design elements, whilst the purposes of their implementations are also ...
Tomaž Tollazzi, Marko Renčelj
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