Results 1 to 10 of about 809 (160)

Critical intervals and queue intervals at two-lane roundabouts

open access: yesИнтеллект. Инновации. Инвестиции, 2023
Over the past decade, a number of manuals have been developed for rural road roundabouts in the Russian Federation. However, two- and three-lane roundabouts are designed and operated in cities of the Russian Federation do not yet have manuals that take ...
N. M. Karimov, A. Yu. Mikhailov
doaj   +2 more sources

Estimation of Passenger Car Equivalents for Two-Lane and Turbo Roundabouts Using AIMSUN [PDF]

open access: yesFrontiers in Built Environment, 2020
The paper addresses issues related to Passenger Car Equivalents (PCEs) at roundabouts. Compared to other road units, the curvilinear elements of roundabout geometric design may impose greater constraints on vehicular trajectories and have a significant ...
Anna Granà   +3 more
doaj   +3 more sources

Entrance control eliminates a conflict of vehicles at the exit of the two-lane roundabout [PDF]

open access: yesTehnika, 2015
Traffic flows are merged, overlapped and separated in a roundabout and thus creates a conflict spots and conflict zones. Number of conflict spots and the size of the conflict area of roundabout depends on the roundabout type and the number of incoming ...
Čabarkapa Milenko R.   +1 more
doaj   +3 more sources

Event-Based Modeling of Driver Yielding Behavior to Pedestrians at Two-Lane Roundabout Approaches. [PDF]

open access: yesTransp Res Rec, 2014
Drivers are less likely to comply with the “Yield to Pedestrians” sign at roundabouts than at other types of controlled intersections. The aim of this study was to identify the contributing factors affecting the likelihood of drivers yielding to pedestrians at two-lane roundabouts.
Salamati K   +3 more
europepmc   +4 more sources

Optimized path planning and scheduling strategies for connected and automated vehicles at single-lane roundabouts. [PDF]

open access: yesPLoS ONE
This paper focuses on the cooperative driving challenges of connected and automated vehicles (CAVs) at single-lane roundabouts. First, a geometric path planning method is proposed for CAVs navigating a single-lane roundabout.
Lifeng Wang   +5 more
doaj   +2 more sources

Comparison of Single-Lane Roundabout Entry Degree of Saturation Estimations from Analytical and Regression Models

open access: yesAlgorithms, 2023
Roundabout design is an iterative process consisting of a preliminary geometry design, geometry performance checks, and the estimation of intersection functionality (based on the results of analytical or regression models). Since both roundabout geometry
Maja Ahac, Sasa Ahac, Ahac Sasa
exaly   +3 more sources

Critical headway and follow-up time analysis at two-lane roundabouts [PDF]

open access: yesE3S Web of Conferences, 2023
Design of urban intersections, as well as the traffic control design on them requires the development of methods of capacity, traffic delays and queues estimation.
Karimov Navruz Mirzorahimovich   +2 more
doaj   +2 more sources

Multi-lane Roundabout Capacity Evaluation

open access: yesFrontiers in Built Environment, 2017
Although two-lane roundabouts theoretically exhibit excellent operating performance, in practice, safety problems arise because of inappropriate driving behavior.
Ammar Saric, Saric Ammar
exaly   +3 more sources

Analyzing the relationship between the efficiency and safety of a turbo roundabout by the factor analysis method [PDF]

open access: yesHeliyon
The construction of cities and economic development lead to more and more serious environmental pollution, and the concept of green and low-carbon city has been proposed. Therefore, a series of requirements have been put forward for transportation.
Qinghua He   +7 more
doaj   +2 more sources

Simulation-Based Analysis of “What-If” Scenarios with Connected and Automated Vehicles Navigating Roundabouts [PDF]

open access: yesSensors, 2022
Despite the potential of connected and automated vehicles (CAVs), there are still many open questions on how road capacity can be influenced and what methods can be used to assess its expected benefits in the progressive transition towards fully ...
Maria Luisa Tumminello   +3 more
doaj   +2 more sources

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