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고속도로 졸음쉼터 진·출입 차량 주행속도 분석 및 적정 가·감속차로 길이 산정 연구

Estimating Acceleration and Deceleration Lane Lengths by Analyzing Vehicle Speed Variation of Rest Areas for Drowsy Drivers

  • 한다정 (인천대학교 일반대학원 건설환경공학과) ;
  • 김응철 (인천대학교 도시과학대학 건설환경공학부)
  • Han, Dajeong (Dept. of Civil & Environmental Engr., Incheon National University) ;
  • Kim, Eungcheol (Dept. of Civil & Environmental Engr., Incheon National University)
  • 투고 : 2018.07.18
  • 심사 : 2018.11.07
  • 발행 : 2018.12.31

초록

본 연구에서는 고속도로 졸음쉼터의 진 출입 차량 주행속도 조사를 통해 졸음쉼터 가 감속차로 길이, 설치위치의 종단경사 및 곡선반경이 주행차량에 미치는 영향을 분석하였다. 또한, 졸음쉼터 적정 가 감속차로 길이 산정을 위해, VISSM을 활용하여 진출입부 길이 별 시나리오를 구축하고, 가 감속차로를 이용하는 차량의 개별차량 주행궤적 자료를 추출하여 차량의 감속 및 가속도의 표준 편차를 산출하였다. 주행속도 조사 결과 졸음쉼터 설치위치의 곡선반경 및 종단경사에 따른 속도차이가 있는 것으로 나타났으며 무엇보다 가 감속차로 길이에 따른 차량 간의 속도차이가 크게 나타났다. 특히 가 감속차로 길이가 짧게 설치된 졸음쉼터의 경우 차량 간의 속도차이가 큰 것으로 조사되었으며 차량이 졸음쉼터 진입 시 충분히 감속을 하지 못하고 진입하거나 졸음쉼터 이용 후 본선 진입 시 충분히 가속을 하지 못한 채로 본선에 진입하는 것으로 조사되어 위험성이 높은 것으로 분석되었다. 가 감속차로 길이에 따른 시뮬레이션 분석결과 진입부의 경우 245m 이상의 감속차로 길이 확보가 필요할 것으로 분석되었으며, 가속차로의 경우 370m 이상으로 설치하였을 때 안전한 진출이 가능한 것으로 분석되었다.

In this study, vehicle speeds at acceleration and deceleration lanes of rest areas for drowsy drivers were investigated to analyze effects of acceleration and deceleration lane lengths, grades and curve radius. In addition, we used VISSM to analyze proper lengths of rest area's acceleration and deceleration lanes. Several VISSIM scenarios with different lengths of acceleration and deceleration lane were constructed. Through VISSIM simulation, we collected individual vehicle speed data to analyze speed changes by different lengths of acceleration and deceleration lanes. As a result of the vehicle speed change investigation, grades and curve radii of the rest area affected the speed, most of all lengths of acceleration and deceleration lane showed a great effect on the vehicle speed. In the case of short lengths of acceleration and deceleration lane, speed variation among vehicles was significant. If the deceleration lane length is short, the vehicle enters a state in which the speed is not sufficiently reduced, and if the acceleration lane length is short, the vehicle enters a state in which the speed is not sufficiently accelerated showing high risks of conflicts and accidents. It is recommended that 245m length of deceleration lane and 370m length of acceleration lane should be installed at least to secure safety and manage conflicts relevantly.

키워드

참고문헌

  1. AASHTO(2001), Guide for Development of Rest Areas on Major Arterials and Freeways, Third Edition, p.27.
  2. AASHTO(2011), A Policy on Geometric Design of Highways and Streets, 6th Edition, pp.10-87.
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  4. Japan Road Association(JARA)(2005), Explanation and Operation of Road Structure Instruction, Goomibook(Republic of Korea).
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  8. Oh D. H.(2009), "Methodology for Evaluation Freeway Interchange Spacing for High Design Speed based on Traffic Safety : Focused on Analysis of Acceleration Noise using Microscopic Traffic Simulations," Journal of Korea Society of Transportation, vol. 2, no. 5, pp.145-153.
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  10. Oh S. J.(2015), Improved Design Criteria of the Rest Area for Drowsy Drivers on the Highways, Master's Thesis, University of Chonnam.
  11. PTV GROUP(2015), PTV VISSIM 8 User manual, p.260.

피인용 문헌

  1. Crash- and Simulation-Based Safety Performance Evaluation of Freeway Rest Area vol.13, pp.9, 2018, https://doi.org/10.3390/su13094963