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A Study on the Warning Characteristics of LDWS using Driver's Reaction Time and Vehicle Type

차량 종류 및 운전자 인지반응 시간을 이용한 LDWS 경고 특성에 관한 연구

  • Received : 2015.11.04
  • Accepted : 2016.03.28
  • Published : 2016.03.31

Abstract

More than 80 percent of traffic accidents related with lane departure believed to be the result of crossing the lane due to either negligence or drowsiness of the driver. Lane-departure related accident in the highway usually involve high fatality. Even though LDWS is believed to prevent accident 25% and reduce fatalities by 15% respectively, its effectiveness in performance is yet to be confirmed in many aspects. In this study, the vehicle lateral locations relative to warning zone envelop (earliest and latest warning zone) defined in ISO standard, ECE and NHTSA regulations are compared with respect to various factors including delays, vehicle speed and vehicle heading angle with respect to the lane. Since LDWS is designed to be activated at the speed over 60 km/h, vehicle speed range for the study is set to be from 60 to 100 km/h. The vehicle heading angle (yaw angle) is set to be up to 5 degree away from the lane (abrupt lane change) considering standard for lane change test using double lane-change test specification. The TLC is calculated using factors like vehicle speed, yaw angle and reaction time. In addition, the effect of vehicle type and reaction time have been considered to assess LDWS safety.

Keywords

References

  1. S. J. Choi, 2010, "Test Procedures of Lane Departure Warning System for Passenger Car - Road and Ambient Conditions and Test Procedures", Auto Journal, Vol. 32, No. 6, pp. 27-33.
  2. ISO 17361 Intelligent transport systems - Lane departure warning systems - Performance requirements and test procedures, 2007.
  3. KS R ISO 3888-1 Passenger cars - Test track for a severe lane-change manoeuvre - Part 1 : Double lane change, 2008.
  4. 박환서, 2012, "신경망 및 운전자 인지반응시간을 이용한 차선이탈경고장치 평가를 위한 경고시점 특성에 관한 연구", 박사학위논문, 경희대학교, 경기도 용인시.
  5. H. S. Park, H. G. Lee, K. J. Chang, S. M. Yoo, 2012, "LDWS Performance Study Based on the Type of Vehicle", Journal of KSAE, Vol. 20, No. 6, pp. 39-45.
  6. Kim, M. H. Lee, Y. T., son, J. W., Jang, C. H., 2009, "Age-related Deficits in Response Characteristics on Safety Warning of Intelligent Vehicle", Journal of Korean Society Precision Engineering, Vol. 26, No. 12, pp. 131-137.

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  1. 끼어들기 상황에서의 자동비상제동장치 평가 시나리오 개발 vol.9, pp.3, 2017, https://doi.org/10.22680/kasa.2017.9.3.046