Results 21 to 30 of about 14,477 (290)
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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The need for a sustainable environment and biomass valorization has encouraged research on the recycling of agro and industrial wastes into roofing tiles, ceiling boards, particleboards and furniture. In this study, eco-friendly panels were produced from
Esther Nneka Anosike-Francis +6 more
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This paper establishes a novel holistic T-shape roundabout coordination system (TCS) that addresses the connected and automated vehicles (CAVs) flow at a typically isolated T-shape roundabout.
Khurrum Jalil +3 more
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Effect of vehicle composition and delay on roundabout capacity under mixed traffic conditions [PDF]
Roundabouts are replacing conventional unsignalized intersections in many parts of the world (Polus and Shmueli, 1997). Capacity estimation is necessary for designing a new roundabout, to analyze and improve the existing roundabout facilities.
Dodappaneni Abhigna +2 more
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Improving the traffic safety by converting an existing conventional multilane traffic roundabout to a look-a-like turbine roundabout (case study) [PDF]
: The article addresses the issue of converting existing conventional multilane roundabout to a look-a-like turbine traffic roundabout. A case has been proposed by reviewing different solutions of traffic control devices on existing conventional ...
Alicja Sołowczuk, Anna Olszewska
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Intersection Sight Distance Characteristics of Turbo Roundabouts
A turbo roundabout uses spiral circulatory roads for effectively counteracting the problems faced in modern multilane roundabouts. First developed in 1996, the turbo roundabout has an advantage over the conventional roundabout regarding capacity and ...
Akshay Salwan +3 more
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Traffic Circulation Efficiency of Elliptical Roundabouts
This paper investigates the impact of geometry of central island of roundabout on operational performance in terms of delay and capacity measures. A roundabout with an elliptical central island having major and minor axes of 63 and 44m respectively was ...
Hardi S. Fathullah +5 more
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A safety analysis of roundabouts and turbo roundabouts based on Petri nets [PDF]
Objective: In this work, a roundabout and a turbo roundabout model are compared and previous modeling with continuous Petri nets and safety are analyzed through indicators of complexity. Petri nets are a graphic and mathematical representation that allow a faithful modeling of urban systems.
Jesús Balado +3 more
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Evaluating the operational and the environmental benefits of a smart roundabout
Vehicle fuel consumption and emission rates in Kuwait have increased considerably over recent decades, and are now causing health and economic problems.
Alkhaledi, Khaled Ali
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Cooperative Roundabout Control Strategy for Connected and Autonomous Vehicles
Intersections in the urban network are potential sources of traffic flow inefficiency. Existing intersection control mostly adopts the “cross” flow pattern model, while the use of the roundabout circular flow pattern is rather sparse.
Chaojie Wang, Yu Wang, Srinivas Peeta
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