The Journal of The Korea Institute of Intelligent Transport Systems (한국ITS학회 논문지)

The Korea Institute of Intelligent Transport Systems (한국ITS학회)
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Analysis of the Influence of Road·Traffic Conditions and Weather on the Take-over of a Conditional Autonomous Vehicle

도로·교통 조건 및 기상 상황이 부분 자율주행자동차의 제어권전환에 미치는 영향 분석

  • Park, Sungho (Dept. of Transportation Eng., Ajou University) ;
  • Yun, YongWon (Korea Automobile Testing & Research Institute, Korea Transportation Safety Authority) ;
  • Ko, Hangeom (Korea Automobile Testing & Research Institute, Korea Transportation Safety Authority) ;
  • Jeong, Harim (Korea Automobile Testing & Research Institute, Korea Transportation Safety Authority) ;
  • Yun, Ilsoo (Dept. of Transportation Eng., Ajou University)
  • 박성호 (아주대학교 교통공학과) ;
  • 윤용원 (한국교통안전공단 자동차안전연구원 자율주행실) ;
  • 고한검 (한국교통안전공단 자동차안전연구원 자율주행실) ;
  • 정하림 (아주대학교 교통공학과) ;
  • 윤일수 (아주대학교 교통시스템공학과)
  • Received : 2020.10.21
  • Accepted : 2020.11.30
  • Published : 2020.12.31
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Abstract

The Ministry of Land, Infrastructure and Transport established safety standards for Level 3 autonomous vehicles for the first time in the world in December 2019, and specified the safety standards for conditional autonomous driving systems. Accordingly, it is necessary to analyze the influence of various driving environments on take-over. In this study, using a driving simulator, we investigated how traffic conditions and weather conditions affect take-over time and stabilization time. The experimental procedure was conducted in the order of preliminary training, practice driving, and test driving, and the test driving was conducted by dividing into a traffic density and geometry experiment and a weather environment experiment. As a result of the experiment, it was analyzed that the traffic volume and weather environment did not affect the take-over time and take-over stabilization time, and only the curve radius affects take-over stabilization time.

국토교통부는 2019년 12월에 세계 최초로 레벨 3 자율주행 차량에 대한 안전기준을 제정하였으며, 제어권전환을 포함한 부분 자율주행시스템의 안전과 관련된 기준들을 명시하였다. 하지만, 제정된 "부분 자율주행시스템의 안전기준"에서는 구체적인 운전 환경 등이 명시되어 있지 않다. 따라서, 자율주행자동차의 안전한 주행을 위해서는 실제로 자율주행자동차가 주행하게 될 다양한 운전 환경이 제어권전환에 미치는 영향을 분석할 필요가 있다. 본 연구에서는 주행 시뮬레이터를 이용하여 교통상황(서비스수준 D, E, F)과 기하구조(직선 및 곡선부) 및 기상 상황(주야 및 강우)이 제어권전환 시간과 안정화시간에 어떠한 영향을 미치는 지 알아보았다. 실험 절차는 사전교육, 연습주행, 시험주행의 순서로 진행되었으며 시험주행은 교통량 및 기하구조 실험과 기상 상황 실험으로 나누어서 진행되었다. 실험 결과, 교통상황과 기상 상황은 제어권전환 시간 및 제어권전환 안정화시간에 통계적으로 유의한 영향을 미치지 않았으며, 곡선반경만이 제어권전환 안정화시간에 통계적으로 유의한 영향을 미치는 것으로 분석되었다.

Keywords

Acknowledgement

본 연구는 국토교통부 교통물류연구사업의 연구비지원(과제번호 20TLRP-B131486-04)에 의해 수행되었습니다.

References

  1. Du N., Kim J., Zhou F., Pulver E., Tilbury D., Robert L. P., Pradhan A. and Yang X. J.(2020), "Evaluating Effects of Cognitive Load, Takeover Request Lead Time, and Traffic Density on Drivers' Takeover Performance in Conditionally Automated Driving," Automotive UI '20: 12th International Conference on Automotive User Interfaces and Interactive Vehicular Applications, pp.66-73.
  2. Gold C., Körber M., Lechner D. and Bengler K.(2016), "Taking Over Control From Highly Automated Vehicles in Complex Traffic Situations: The Role of Traffic Density," Human Factors, vol. 58, no. 4, pp.642-652. https://doi.org/10.1177/0018720816634226
  3. Kang Y. K.(2011), Exploration of Optimal Statistical Methods to Analyze Longitudinal Data with Missing Values for Clinical Research Involving Knee Arthroplasty, Dankook University.
  4. Kim S.(2008), The impact Analysis of Precipitation th the Maximum flow rate and Speed on Freeway, University of Seoul.
  5. Lee H.(2020), Human-Vehicle Interaction in Conditional Autonomous Vehicle: Take-over Requests in Environments, Hanyang University.
  6. Li S., Blythe P., Guo W. and Namdeo A.(2018), "Investigation of older driver's takeover performance in highly automated vehicles in adverse weather conditions," IET Intelligent Transport Systems, vol. 12, no. 9, pp.1157-1165. https://doi.org/10.1049/iet-its.2018.0104
  7. Maeng J. H.(2005), Empirical Analysis of the Relationship between Precipitation and Traffic Flow Speed on Highway, Yonsei University.
  8. Ministry of Land, Infrastructure and Transport(2013), Highway Capacity Manual.
  9. Ministry of Land, Infrastructure and Transport(2013), Road structures and facilities Commentary Guidelines.
  10. Ministry of Trade, Industry and Energy(2007), Lighting for Roads, Korean Agency for Technology and Standards.
  11. Park M. and Son J.(2019), "Reference Test Scenarios for Assessing the Safety of Take-over in a Conditionally Autonomous Vehicle," Transactions of the Korean Society of Automotive Engineers, vol. 27, no. 4, pp.309-317. https://doi.org/10.7467/KSAE.2019.27.4.309
  12. Park S., Jeong H., Kwon C., Kim J. and Yun I.(2019), "Analysis of Take-over Time and Stabilization of Autonomous Vehicle Using a Driving Simulator," The Journal of the Korea Institute of Intelligent Transport Systems, vol. 18, no. 4, pp.31-43.
  13. The Korea Transport Institute(2020), http://blog.naver.com/PostView.nhn?blogId=koti10&logNo=221905750751, 2020.10.16.