Evaluation of Driver Behavior under Automated Vehicle Platoon Environment

Samgyu Yang; Kawon Kang; Juneyoung Park

doi:10.7470/jkst.2022.40.4.570

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2022 Vol.40, Issue 4 Preview Page Next Page

Article

Evaluation of Driver Behavior under Automated Vehicle Platoon Environment 자율군집주행차량 유무에 따른 운전자 주행행태 분석

31 August 2022. pp. 570-584

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Abstract

With the development of autonomous driving technology, interest in the traffic flow situation in which autonomous and non-autonomous vehicles are mixed is increasing, and platoon, which is being raised in the truck industry, can affect the driving behavior of non-autonomous vehicles. Accordingly, existing studies have consistently analyzed non-autonomous vehicles that interact with platoons, but it is essential to consider the entry and exit section where interaction between vehicles inevitably occurs. In this study, the effect of non-autonomous vehicles on entering and exiting highways was analyzed, and the effect of physical driving characteristics change and psychological workload was analyzed through a driving simulation. The driving characteristics analysis classified indicators according to driving, longitudinal, and lateral behavior, and the driver workload was used by the NASA-TLX technique. In addition, the experimental scenario was constructed in consideration of the presence or absence of platoon and the inter-platooning spacing, and statistical techniques such as ‘multivariate analysis of variance’ and ‘analysis of variance’ were used to analyze significant differences for each scenario. As a result of the analysis, the presence or absence of platoons and the inter-platooning spacing have a complex physical and psychological effect, especially in the case of entry, the effect due to the presence or absence of platoons was clearly derived. However, it can be considered as a way to control the effect on the driver by increasing the inter-platooning spacing. This study is meaningful in that the experiment was conducted in an environment in which the autonomous driving lane was not newly added, and the physical and psychological effects of drivers were considered in combination.

Keywords

autonomous

driving behavior

driving simulation

platooning

workload

자율주행 기술이 발전함에 따라 자율차와 비자율차가 혼재된 교통류 상황에 대한 관심이 증대되고 있으며, 특히나 화물 산업 분야에서 제기되고 있는 군집주행은 비자율주행차의 주행행태에 영향을 미칠 수 있다. 이에 따라 기존 연구들은 군집주행 차량과 상호작용 하는 비자율차량에 대한 분석을 꾸준히 수행하고 있으나, 차량 간의 상호작용이 필연적으로 발생하는 진출입 구간에 대한 고려가 필수적이다. 본 연구에서는 비자율차가 고속도로에 진출입함에 있어서 군집주행하는 화물차로 인해 미치는 영향을 분석하며, 주행 시뮬레이션을 통해 실험을 수행하고 물리적 주행 특성 변화와, 심리적 작업부하 측면에서 발생하는 영향을 복합적으로 분석하였다. 주행 특성 분석은 주행, 종방향, 횡방향 차량거동에 따라 지표를 구분하고 운전자 작업부하는 NASA-TLX 기법을 활용하였다. 또한 실험 시나리오는 군집 유무와 군집 간 간격을 고려하여 구성하였으며, 시나리오별 유의한 차이를 분석하기 위해 MANOVA와 ANOVA와 같은 통계적 기법을 사용하였다. 분석 결과, 군집 유무와 군집 간 간격은 육체적 및 심리적으로 복합적 영향을 미치며 특히 진입의 경우 군집 유무로 인한 영향이 뚜렷하게 도출되었다. 그러나 군집 운영 시에 군집 간 간격을 증가시키는 것이 운전자에게 미치는 영향을 조절 할 수 있는 방안으로 고려될 수 있다. 본 연구는 자율주행 전용차로를 새롭게 추가하지 않고 기존의 지정차로제에 맞추어 주행하는 환경에서 실험을 진행하였으며, 운전자의 물리적, 심리적 영향을 함께 고려함에 의의를 가진다.

키워드

자율주행

군집주행

주행행태

작업부하

주행 시뮬레이션

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Information

Publisher :Korean Society of Transportation
Publisher(Ko) :대한교통학회
Journal Title :Journal of Korean Society of Transportation
Journal Title(Ko) :대한교통학회지
Volume : 40
No :4
Pages :570-584
Received Date : 2022-06-10
Revised Date : 2022-07-05
Accepted Date : 2022-08-11
DOI :https://doi.org/10.7470/jkst.2022.40.4.570

Journal of Korean Society of Transportation ISSN:1229-1366(Print) 2234-4217(Online) 대한교통학회지

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