Results 21 to 30 of about 1,483 (262)
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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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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ROUNDABOUTS IN JAPAN – SURVEYING, PROBLEMS AND ISSUES [PDF]
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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New Type of Roundabout: Roundabout with “Depressed” Lanes for Right Turning – “Flower Roundabout”
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
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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Capacity Limits of Basic Turbo-Roundabouts
Turbo-roundabouts with their specific design characteristics have become a suitable solution of a single-lane roundabouts capacity problem and a standard two-lane roundabouts safety problem.
Andrea Kocianova
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Multi-lane Roundabout Capacity Evaluation
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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The operations of multilane roundabouts, especially three-lane roundabouts, are unique and more complicated than any other type of roundabouts. This study aims to analyze driver behavior and estimate the critical gap at three-lane roundabouts. Video data
Khaled Shaaban, Hassan Hamad
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Evaluation of the Safety Performance of Turbo Roundabouts by Means of a Potential Accident Rate Mode
Turbo roundabouts are a particular road intersection layout, designed to increase the safety of double-lane roundabouts, while maintaining their excellent capacity.
Raffaele Mauro +2 more
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The problems of low level traffic safety on multi-lane roundabouts have been resolved in various ways in different countries, usually by using alternative types of roundabouts that reduce the number of conflict points.
Tomaž Tollazzi +2 more
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