Algorithms, 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
Saša Ahac, Maja Ahac
exaly +4 more sources
Entrance control eliminates a conflict of vehicles at the exit of the two-lane roundabout [PDF]
Tehnika, 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 +2 more sources
Optimized path planning and scheduling strategies for connected and automated vehicles at single-lane roundabouts. [PDF]
PLoS ONEThis 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
Analyzing the relationship between the efficiency and safety of a turbo roundabout by the factor analysis method [PDF]
HeliyonThe 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
Enhancing Intersection Efficiency: A Comparative Analysis of Converting Single-Lane Roundabout to Turbo Roundabout [PDF]
SensorsKristián Čulík +2 more
exaly +2 more sources
Improving cycling safety through infrastructure design: A bicycle simulator study
Transportation Research Interdisciplinary Perspectives, 2023 This study investigated the impact of two road treatments on cyclist behaviour using an bicycle simulator. The treatments were sharrows (presence or absence) at a roundabout and widening an on-road bike lane (width 1.2 m or 1.8 m) on a curved mid-block ...
Lynn Meuleners +2 more
doaj +1 more source
IET Intelligent Transport Systems, 2022 This paper develops a distributed cooperative control strategy (DCCS) to plan and optimize the collision‐free trajectory for the connected automated vehicle (CAV) at an isolated roundabout. The representation of the trajectories of CAVs is defined within
Ruiyi Wu +5 more
doaj +1 more source
Estimation of Passenger Car Equivalents for Two-Lane and Turbo Roundabouts Using AIMSUN
Frontiers 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 +1 more source
MPC Tracking Controller Parameters Impacts in Roundabouts
Mathematics, 2021 The work is proposed to design a controller of the form known as the roundabout scenario trajectory tracking problem. The road condition is a four-leg, single-lane roundabout; the reference path is given.
Hang Cao, Mate Zoldy
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Assessment of vehicle emissions at roundabouts: a comparative study of PEMS data and microscale emission model [PDF]
Archives of Transport, 2022 Energy efficiency has a central role to play in achieving decarbonisation targets in the transport system by changing the demand for mobility (eg. by influencing on peoples behaviors) and improving the performance of the fleet.
Maksymilian Mądziel, Tiziana Campisi
doaj +1 more source