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http://dx.doi.org/10.5762/KAIS.2021.22.6.83

Roundabout Design and Intervehicle Distance Measure for V2X-based Autonomous Driving  

Hwang, Jae-Jeong (School of IT Information Control Engineering, Kunsan National University)
Oh, Seok-Hyung (School of Mechanical Convergence System Engineering, Kunsan National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.22, no.6, 2021 , pp. 83-89 More about this Journal
Abstract
To improve the performance of self-driving cars, the introduction of V2X, a communication technology that connects vehicles, infrastructure, and vehicles, is essential. Even if traffic information of the other vehicle is known, the structure of the intersection and a distance calculation algorithm are required for accurate calculations at roundabouts. This paper proposes a design algorithm for a rotating intersection and implemented in Matlab that complies with the national design rules and enables accurate calculations. Assuming the roundabout and the entrance/exit path to be a circle, a method for measuring the distance between vehicles at an arbitrary point was proposed using the horizontal shift of the entrance circle to the main circle. The algorithm could be used in fully autonomous vehicles by designing a roundabout suitable for the terrain by arbitrarily varying the angle between branches and the radius of curvature of the entrance and exit roads, and transmitting a warning signal when a collision between two driving vehicles is expected.
Keywords
Collision-Warning; Matlab; Roundabout; Self-Driving; V2X;
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