Capacity Analysis of Intersections When CAVs Are Crossing in a Collaborative and Lane-Free Order

Connected and autonomous vehicles (CAVs) improve the throughput of intersections by crossing in a lane-free order as compared to a signalised crossing. However, it is challenging to quantify such an improvement because the available frameworks to analyse the capacity of the conventional intersection...

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Main Authors: Mahdi Amouzadi, Mobolaji Olawumi Orisatoki, Arash M. Dizqah
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Future Transportation
Subjects:
Online Access:https://www.mdpi.com/2673-7590/2/3/39
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author Mahdi Amouzadi
Mobolaji Olawumi Orisatoki
Arash M. Dizqah
author_facet Mahdi Amouzadi
Mobolaji Olawumi Orisatoki
Arash M. Dizqah
author_sort Mahdi Amouzadi
collection DOAJ
description Connected and autonomous vehicles (CAVs) improve the throughput of intersections by crossing in a lane-free order as compared to a signalised crossing. However, it is challenging to quantify such an improvement because the available frameworks to analyse the capacity of the conventional intersections do not apply to the lane-free ones. This paper proposes a novel framework including a measure and an algorithm to calculate the capacity of the lane-free intersections. The results show that a lane-free crossing of CAVs increases the capacity of intersections by 127% and 36% as compared to a signalised crossing of, respectively, human-driven vehicles and CAVs. The paper also provides a sensitivity analysis indicating that, in contrast to the signalised ones, the capacity of the lane-free intersections improves by an increase in the initial speed, maximum permissible speed and acceleration of vehicles.
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spelling doaj.art-a241898ae62d4ad4a1f0e031c2143a7e2023-11-23T16:21:01ZengMDPI AGFuture Transportation2673-75902022-08-012369871010.3390/futuretransp2030039Capacity Analysis of Intersections When CAVs Are Crossing in a Collaborative and Lane-Free OrderMahdi Amouzadi0Mobolaji Olawumi Orisatoki1Arash M. Dizqah2Smart Vehicles Control Laboratory (SVeCLab), University of Sussex, Brighton BN1 9RH, UKSmart Vehicles Control Laboratory (SVeCLab), University of Sussex, Brighton BN1 9RH, UKSmart Vehicles Control Laboratory (SVeCLab), University of Sussex, Brighton BN1 9RH, UKConnected and autonomous vehicles (CAVs) improve the throughput of intersections by crossing in a lane-free order as compared to a signalised crossing. However, it is challenging to quantify such an improvement because the available frameworks to analyse the capacity of the conventional intersections do not apply to the lane-free ones. This paper proposes a novel framework including a measure and an algorithm to calculate the capacity of the lane-free intersections. The results show that a lane-free crossing of CAVs increases the capacity of intersections by 127% and 36% as compared to a signalised crossing of, respectively, human-driven vehicles and CAVs. The paper also provides a sensitivity analysis indicating that, in contrast to the signalised ones, the capacity of the lane-free intersections improves by an increase in the initial speed, maximum permissible speed and acceleration of vehicles.https://www.mdpi.com/2673-7590/2/3/39intersection throughputtraffic managementconnected and autonomous vehiclessignal-free intersectionssignalised intersection
spellingShingle Mahdi Amouzadi
Mobolaji Olawumi Orisatoki
Arash M. Dizqah
Capacity Analysis of Intersections When CAVs Are Crossing in a Collaborative and Lane-Free Order
Future Transportation
intersection throughput
traffic management
connected and autonomous vehicles
signal-free intersections
signalised intersection
title Capacity Analysis of Intersections When CAVs Are Crossing in a Collaborative and Lane-Free Order
title_full Capacity Analysis of Intersections When CAVs Are Crossing in a Collaborative and Lane-Free Order
title_fullStr Capacity Analysis of Intersections When CAVs Are Crossing in a Collaborative and Lane-Free Order
title_full_unstemmed Capacity Analysis of Intersections When CAVs Are Crossing in a Collaborative and Lane-Free Order
title_short Capacity Analysis of Intersections When CAVs Are Crossing in a Collaborative and Lane-Free Order
title_sort capacity analysis of intersections when cavs are crossing in a collaborative and lane free order
topic intersection throughput
traffic management
connected and autonomous vehicles
signal-free intersections
signalised intersection
url https://www.mdpi.com/2673-7590/2/3/39
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AT arashmdizqah capacityanalysisofintersectionswhencavsarecrossinginacollaborativeandlanefreeorder