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Synchronous Roundabouts with Rotating Priority Sectors (SYROPS): High Capacity and Safety for Conventional and Autonomous Vehicles

Ibanez, Guillermo ; Meuser, Tobias ; Lopez-Carmona, Miguel A. ; Lopez-Pajares, Diego (2022):
Synchronous Roundabouts with Rotating Priority Sectors (SYROPS): High Capacity and Safety for Conventional and Autonomous Vehicles. (Publisher's Version)
In: Electronics, 9 (10), MDPI, e-ISSN 2079-9292,
DOI: 10.26083/tuprints-00015637,
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Item Type: Article
Origin: Secondary publication DeepGreen
Status: Publisher's Version
Title: Synchronous Roundabouts with Rotating Priority Sectors (SYROPS): High Capacity and Safety for Conventional and Autonomous Vehicles
Language: English
Abstract:

Roundabouts are a highway engineering concept meant to reduce congestion and improve safety. However, experience shows that capacity of roundabouts is limited, and safety is not optimal. However, these improvements in capacity and safety should be compatible with both manually-driven and autonomous vehicles. Incorporating existing advanced technologies to the signaling and control of roundabouts will undoubtedly contribute to these improvements but should not restrict this compatibility. We approach roundabouts as synchronous switches of vehicles, and propose a roundabout system (synchronous roundabouts with rotating priorities) based on vehicle platoons arriving at the roundabout at a uniform speed and within the time slot assigned to their entry, avoiding conflicts and stops. The proposed signaling system is visual for human drivers and wireless for connected and autonomous vehicles. We evaluated analytically and with simulations roundabouts of different radii for several values of the average distance between vehicles. Results show that average delays are 28.7% lower, with negligible dispersion. The capacity improvements depend on design parameters, moderate for small roundabouts, but that goes up to 70–100% for short inter vehicular distances and medium and large roundabouts. Simulations with unbalanced traffic maintained the capacity improvement over standard roundabouts.

Journal or Publication Title: Electronics
Volume of the journal: 9
Issue Number: 10
Publisher: MDPI
Collation: 22 Seiten
Uncontrolled Keywords: roundabouts, road-traffic engineering, road-traffic signaling, intelligent transport systems, connected vehicles, traffic safety
Classification DDC: 500 Naturwissenschaften und Mathematik > 530 Physik
600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Divisions: 18 Department of Electrical Engineering and Information Technology > Institute of Computer Engineering > Multimedia Communications
Date Deposited: 09 Feb 2022 14:54
Last Modified: 02 May 2022 12:07
DOI: 10.26083/tuprints-00015637
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-156378
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/15637
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