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 Effectiveness of Tunnel Traffic Safety Information Service Using RADAR Data Based on Surrogate Safety Measures

레이더 검지기 자료를 활용한 SSM 기반 터널 교통안전정보 제공 서비스 효과분석

  • Yongju Kim (Inst. of Engineering Research, Seoul National Univ.) ;
  • Jaehyeon Lee (Dept. of Civil and Environmental Eng., Seoul National Univ.) ;
  • Sungyong Chung (Inst. of Construction and Environmental Eng., Seoul National Univ.) ;
  • Chungwon Lee (Dept. of Civil and Environmental Eng., Seoul National Univ.)
  • 김용주 (서울대학교 공학연구원) ;
  • 이재현 (서울대학교 공과대학 건설환경공학부 ) ;
  • 정성용 (서울대학교 건설환경종합연구소 ) ;
  • 이청원 (서울대학교 공과대학 건설환경공학부 )
  • Received : 2023.04.06
  • Accepted : 2023.05.04
  • Published : 2023.06.30
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Abstract

Furnishing traffic safety information can contribute to providing hazard warnings to drivers, thereby avoiding crashes. A smart road lighting platform that instantly recognizes road conditions using various sensors and provides appropriate traffic safety information has therefore been developed. This study analyzes the short-term traffic safety improvement effects of the smart road lighting's tunnel traffic safety information service using surrogate safety measures (SSM). Individual driving behavior was investigated by applying the vehicle trajectory data collected with RADAR in the Anin Avalanche 1 and 2 tunnel sections in Gangneung. Comparing accumulated speeding, speed variation, time-to-collision, and deceleration rate to avoid the crash before and after providing traffic safety information, all SSMs showed significant improvement, indicating that the tunnel traffic safety information service is beneficial in improving traffic safety. Analyzing potential crash risk in the subdivided tunnel and access road sections revealed that providing traffic safety information reduced the probability of traffic accidents in most segments. The results of this study will be valuable for analyzing the short-term quantitative effects of traffic safety information services.

교통안전정보를 제공하는 서비스는 운전자에게 도로의 위험상황을 미리 전달함으로써 교통사고 예방에 도움을 줄 수 있다. 이에 다양한 센서로 도로 상황을 즉각적으로 인지하고 적절한 교통안전정보를 제공하는 스마트 도로조명 플랫폼 개발 연구가 진행되고 있다. 본 연구는 Surrogate Safety Measures (SSM)를 활용하여 스마트 도로조명의 터널 교통안전정보 제공 서비스 운영에 대한 단기적인 교통 안전성 개선 효과를 분석하였다. 분석에 활용된 자료는 강릉시 안인피암 1, 2 터널구간에서 레이더 검지기를 이용하여 수집된 차량 궤적자료이며, 이를 통해 개별 차량의 주행행태를 분석하였다. 교통안전정보 제공 사전과 사후의 과속, 속도 변동, 충돌예상시간, 충돌회피 감속도를 비교한 결과, 모든 SSM이 통계적으로 유의하게 개선되어 터널 교통안전정보 제공 서비스가 교통안전 향상에 효과적인 것으로 나타났다. 터널구간과 접속구간을 세분화하여 사고 위험성을 분석한 결과, 교통안전정보 제공 시 대부분의 구간에서 교통사고 발생 가능성이 저하된 것이 확인되었다. 본 연구는 교통안전정보 제공 서비스에 대한 단기 효과분석으로 유익한 사례가 될 수 있을 것으로 기대된다.

Keywords

Acknowledgement

본 연구는 국토교통부/국토교통과학기술진흥원의 지원으로 수행되었습니다(과제번호 22PQWO-C155408-04). 그리고 서울대학교 공학연구원과 서울대학교 건설환경종합연구소의 지원으로 수행되었습니다. 연구지원에 감사드립니다.

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