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author:

Cai, M. (Cai, M..) [1] | Zhou, W. (Zhou, W..) [2] | Wang, S. (Wang, S..) [3] (Scholars:王书易) | Mao, C. (Mao, C..) [4] | Liu, Q. (Liu, Q..) [5] | Yu, B. (Yu, B..) [6]

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Scopus

Abstract:

Automated vehicles equipped with adaptive cruise control systems (ACC-AVs) are prevalent and the ensuing issue is the feasibility of ACC-AVs' operation on the roads. This study investigates the feasibility of road horizontal curve designs for ACC-AVs from a vehicle dynamics perspective. Following the scenario generation framework, we created and tested several scenarios featuring horizontal geometric elements and design speeds, conducting a safety evaluation based on the critical adhesion coefficient, lateral acceleration, lateral-load transfer rate, together with driving comfort indicators. Results indicate that ACC-AV can navigate on road curves designed with a common minimum radius (Rmin_com) effectively at speeds over 60 km/h, comparable to conventional vehicles. However, both Rmin_com and limited minimum radius (Rmin_lim) designs show limitations. Additionally, the feasible radius ranges for ACC-AV reveal the capability to safely handle sharper curves and maintain higher speeds, suggesting potential for adaptable road design in complex environments. Finally, minimum radius ranges were summarized for ACC-AV safe and comfortable operation on road curves, unveiling the potential risks and reminding designers in curve design controls for ACC-AVs. © 2024 American Society of Civil Engineers.

Keyword:

Automated vehicles (AVs) Dynamics performance Road geometry design Road horizontal curves Road safety assessment Virtual simulation

Community:

  • [ 1 ] [Cai M.]School of Transportation, Southeast Univ., Nanjing, 211189, China
  • [ 2 ] [Zhou W.]Guangzhou Urban Planning & Design Survey Research Institute Co., Ltd., Jianshedama Rd. #10, Guangzhou, 510060, China
  • [ 3 ] [Wang S.]College of Civil Engineering, Fuzhou Univ., Fuzhou, 350116, China
  • [ 4 ] [Mao C.]Wuxi Communications Construction Engineering Group Co., Ltd., Guangyi Rd. #188, Wuxi, 214111, China
  • [ 5 ] [Liu Q.]School of Transportation, Southeast Univ., Nanjing, 211189, China
  • [ 6 ] [Yu B.]School of Transportation, Southeast Univ., Nanjing, 211189, China

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Source :

Journal of Transportation Engineering Part A: Systems

ISSN: 2473-2907

Year: 2024

Issue: 10

Volume: 150

1 . 8 0 0

JCR@2023

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WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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