A Review of Communication, Driver Characteristics, and Controls Aspects of Cooperative Adaptive Cruise Control (CACC)

Cooperative adaptive cruise control (CACC) systems have the potential to increase traffic throughput by allowing smaller headway between vehicles and moving vehicles safely in a platoon at a harmonized speed. CACC systems have been attracting significant attention from both academia and industry sin...

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Bibliographic Details
Published in:IEEE transactions on intelligent transportation systems 2016-02, Vol.17 (2), p.491-509
Main Authors: Dey, Kakan C., Li Yan, Xujie Wang, Yue Wang, Haiying Shen, Chowdhury, Mashrur, Lei Yu, Chenxi Qiu, Soundararaj, Vivekgautham
Format: Article
Language:English
Subjects:
Adaptive control
communication protocols
Composition effects
controls
Cooperative adaptive cruise control (CACC)
Cruise control
Delays
driver characteristics
Driving conditions
Routing
Routing protocols
Safety
string stability
Tasks
Traffic engineering
Traffic flow
Unicast
Vehicles
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Summary:Cooperative adaptive cruise control (CACC) systems have the potential to increase traffic throughput by allowing smaller headway between vehicles and moving vehicles safely in a platoon at a harmonized speed. CACC systems have been attracting significant attention from both academia and industry since connectivity between vehicles will become mandatory for new vehicles in the USA in the near future. In this paper, we review three basic and important aspects of CACC systems: communications, driver characteristics, and controls to identify the most challenging issues for their real-world deployment. Different routing protocols that support the data communication requirements between vehicles in the CACC platoon are reviewed. Promising and suitable protocols are identified. Driver characteristics related issues, such as how to keep drivers engaged in driving tasks during CACC operations, are discussed. To achieve mass acceptance, the control design needs to depict real-world traffic variability such as communication effects, driver behavior, and traffic composition. Thus, this paper also discusses the issues that existing CACC control modules face when considering close to ideal driving conditions.
ISSN:1524-9050
1558-0016
DOI:10.1109/TITS.2015.2483063