Version 1
: Received: 9 August 2021 / Approved: 10 August 2021 / Online: 10 August 2021 (09:02:30 CEST)
How to cite:
Zhou, H.; Laval, J. Incorporating Driver Relaxation into Factory Adaptive Cruise Control and its Implications on Traffic Operation. Preprints2021, 2021080216. https://doi.org/10.20944/preprints202108.0216.v1
Zhou, H.; Laval, J. Incorporating Driver Relaxation into Factory Adaptive Cruise Control and its Implications on Traffic Operation. Preprints 2021, 2021080216. https://doi.org/10.20944/preprints202108.0216.v1
Zhou, H.; Laval, J. Incorporating Driver Relaxation into Factory Adaptive Cruise Control and its Implications on Traffic Operation. Preprints2021, 2021080216. https://doi.org/10.20944/preprints202108.0216.v1
APA Style
Zhou, H., & Laval, J. (2021). Incorporating Driver Relaxation into Factory Adaptive Cruise Control and its Implications on Traffic Operation. Preprints. https://doi.org/10.20944/preprints202108.0216.v1
Chicago/Turabian Style
Zhou, H. and Jorge Laval. 2021 "Incorporating Driver Relaxation into Factory Adaptive Cruise Control and its Implications on Traffic Operation" Preprints. https://doi.org/10.20944/preprints202108.0216.v1
Abstract
Current adaptive cruise control (ACC) systems adopt fixed desired time headway, which leads to an abrupt speed reduction after being cut-in by a lane changer in front or when changing lanes too close to the new leader. In contrast, human drivers behave differently and feature a variable spacing within 20 or 30 seconds right after a cut-in or lane change. Motivated by the smooth transition found in driver relaxation, the paper aims to incorporate relaxation into ACC systems. Based on the open-source ACC platform, Openpilot, Comma.ai, the paper proposes a feasible relaxation model compatible with current factory ACCs, which has also been tested using a market car with stock ACC hardware. The study further investigates the impact of relaxation ACC on traffic operation. Numerical simulation suggests that incorporating relaxation into ACC can help: i) reduce the magnitude of speed perturbations in both cut-in vehicles and followers; ii) stabilize the lane-changing traffic by reducing the speed variance and prevent the lateral propagation of congestion, and iii) increase the average vehicle speed and capacity in merging traffic.
Keywords
factory ACC; driver relaxation; traffic operation
Subject
Engineering, Civil Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
