Gap Acceptance on Car Following for Aerodynamic Drag Reduction — Relationships among Gap Distance, Vehicle Types, and Driver Characteristics —

Naohisa HASHIMOTO; Shin KATO; Sadayuki TSUGAWA

doi:10.1587/transfun.E98.A.267

Gap Acceptance on Car Following for Aerodynamic Drag Reduction — Relationships among Gap Distance, Vehicle Types, and Driver Characteristics —

Naohisa HASHIMOTO, Shin KATO, Sadayuki TSUGAWA

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Energy conservation is one of the hot topics within the domain of traffic problems. It is well known that shortening the distance between vehicles reduces the aerodynamic drag of the lagging (or following) vehicle and leads to energy savings, which benefits the drivers. Recently, systems have been developed in which trucks or vehicles travel in a platoon with reduced headway from the preceding vehicle by using automated driving or driver assistance systems. The objective of the present study is to investigate how human factors, such as driving style, a driver's condition, or a driver's personal characteristics, influence the decision of a driver to close the gap with a preceding vehicle and obtain the benefit of aerodynamic drag reduction. We developed a realistic experimental paradigm for investigating the relationship between distance and several factors including the driver's personal characteristics and the size of preceding vehicle. Our experimental setup made use of real vehicles on a test track, as opposed to a vehicle simulator. We examined behavior of subjects that drove the following vehicle as well as subjects that sat in the passenger seat in the following vehicle. The experimental results demonstrate that all subjects attempted to reduce the distance to the preceding vehicle in order to gain the benefit. Based on the experimental and questionnaire results, we conclude that there are relationships between the category of subjects and subject's following distances.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E98-A No.1 pp.267-274

Publication Date: 2015/01/01

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Online ISSN: 1745-1337

DOI: 10.1587/transfun.E98.A.267

Type of Manuscript: Special Section PAPER (Special Section on Intelligent Transport Systems)

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Naohisa HASHIMOTO, Shin KATO, Sadayuki TSUGAWA, "Gap Acceptance on Car Following for Aerodynamic Drag Reduction — Relationships among Gap Distance, Vehicle Types, and Driver Characteristics —" in IEICE TRANSACTIONS on Fundamentals, vol. E98-A, no. 1, pp. 267-274, January 2015, doi: 10.1587/transfun.E98.A.267.
Abstract: Energy conservation is one of the hot topics within the domain of traffic problems. It is well known that shortening the distance between vehicles reduces the aerodynamic drag of the lagging (or following) vehicle and leads to energy savings, which benefits the drivers. Recently, systems have been developed in which trucks or vehicles travel in a platoon with reduced headway from the preceding vehicle by using automated driving or driver assistance systems. The objective of the present study is to investigate how human factors, such as driving style, a driver's condition, or a driver's personal characteristics, influence the decision of a driver to close the gap with a preceding vehicle and obtain the benefit of aerodynamic drag reduction. We developed a realistic experimental paradigm for investigating the relationship between distance and several factors including the driver's personal characteristics and the size of preceding vehicle. Our experimental setup made use of real vehicles on a test track, as opposed to a vehicle simulator. We examined behavior of subjects that drove the following vehicle as well as subjects that sat in the passenger seat in the following vehicle. The experimental results demonstrate that all subjects attempted to reduce the distance to the preceding vehicle in order to gain the benefit. Based on the experimental and questionnaire results, we conclude that there are relationships between the category of subjects and subject's following distances.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E98.A.267/_p

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@ARTICLE{e98-a_1_267,
author={Naohisa HASHIMOTO, Shin KATO, Sadayuki TSUGAWA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Gap Acceptance on Car Following for Aerodynamic Drag Reduction — Relationships among Gap Distance, Vehicle Types, and Driver Characteristics —},
year={2015},
volume={E98-A},
number={1},
pages={267-274},
abstract={Energy conservation is one of the hot topics within the domain of traffic problems. It is well known that shortening the distance between vehicles reduces the aerodynamic drag of the lagging (or following) vehicle and leads to energy savings, which benefits the drivers. Recently, systems have been developed in which trucks or vehicles travel in a platoon with reduced headway from the preceding vehicle by using automated driving or driver assistance systems. The objective of the present study is to investigate how human factors, such as driving style, a driver's condition, or a driver's personal characteristics, influence the decision of a driver to close the gap with a preceding vehicle and obtain the benefit of aerodynamic drag reduction. We developed a realistic experimental paradigm for investigating the relationship between distance and several factors including the driver's personal characteristics and the size of preceding vehicle. Our experimental setup made use of real vehicles on a test track, as opposed to a vehicle simulator. We examined behavior of subjects that drove the following vehicle as well as subjects that sat in the passenger seat in the following vehicle. The experimental results demonstrate that all subjects attempted to reduce the distance to the preceding vehicle in order to gain the benefit. Based on the experimental and questionnaire results, we conclude that there are relationships between the category of subjects and subject's following distances.},
keywords={},
doi={10.1587/transfun.E98.A.267},
ISSN={1745-1337},
month={January},}

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TY - JOUR
TI - Gap Acceptance on Car Following for Aerodynamic Drag Reduction — Relationships among Gap Distance, Vehicle Types, and Driver Characteristics —
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 267
EP - 274
AU - Naohisa HASHIMOTO
AU - Shin KATO
AU - Sadayuki TSUGAWA
PY - 2015
DO - 10.1587/transfun.E98.A.267
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E98-A
IS - 1
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - January 2015
AB - Energy conservation is one of the hot topics within the domain of traffic problems. It is well known that shortening the distance between vehicles reduces the aerodynamic drag of the lagging (or following) vehicle and leads to energy savings, which benefits the drivers. Recently, systems have been developed in which trucks or vehicles travel in a platoon with reduced headway from the preceding vehicle by using automated driving or driver assistance systems. The objective of the present study is to investigate how human factors, such as driving style, a driver's condition, or a driver's personal characteristics, influence the decision of a driver to close the gap with a preceding vehicle and obtain the benefit of aerodynamic drag reduction. We developed a realistic experimental paradigm for investigating the relationship between distance and several factors including the driver's personal characteristics and the size of preceding vehicle. Our experimental setup made use of real vehicles on a test track, as opposed to a vehicle simulator. We examined behavior of subjects that drove the following vehicle as well as subjects that sat in the passenger seat in the following vehicle. The experimental results demonstrate that all subjects attempted to reduce the distance to the preceding vehicle in order to gain the benefit. Based on the experimental and questionnaire results, we conclude that there are relationships between the category of subjects and subject's following distances.
ER -