DOI QR코드

DOI QR Code

교통안전 특성을 고려한 장대터널 적정길이 제시

Suggestion on the Optimal Length of Long Tunnels Considering Traffic Safety Characteristics

  • 김중효 (도로교통공단 교통과학연구원) ;
  • 이정환 (전남대학교 공업기술연구소) ;
  • 권성대 (전남대학교 일반대학원 토목공학과) ;
  • 하동익 (서울대학교 건설환경종합연구소)
  • 투고 : 2013.06.03
  • 심사 : 2013.12.27
  • 발행 : 2014.02.01

초록

터널은 이동시간을 최소화 시킬 뿐만 아니라 친환경적인 도로건설을 위한 필수적인 시설물이라 하겠다. 최근에는 보다 높은 서비스수준의 제공을 위하여 터널 건설이 가속화 되고 있다. 그러나 터널을 주행하는 운전자는 좁고 어두운 터널의 특성상 심리적 불안감과 시야의 제약을 받게 된다. 더욱이 1,000m 이상의 장대터널을 통과하는 운전자는 단조로운 형태의 터널 내부를 장시간 통과함에 따라 졸음 등이 발생할 수 있으며, 보다 큰 심리적 압박감을 느껴 운전자 부하가 가중되게 된다. 이러한 운전자 부하는 장대터널 내부의 주행안전성을 크게 저하시키며 높은 사고위험성을 내포시키게 된다. 따라서 본 연구에서는 장대터널 교통안전 특성을 고려하여 장대터널의 적정길이를 제시하고자 한다. 이를 위해 본 연구에서는 장대터널의 교통안전에 영향을 미치는 교통안전변수를 분류하고 선정하였다. 교통안전변수는 교통사고변수와 속도변수로 분류하며, 해당 변수는 교통사고건수, 교통사고율, 주행속도, 개별차량 주행속도 차등으로 세부적인 분류를 하였다. 이상과 같이 분류된 교통안전변수가 장대터널길이에 미치는 영향을 검토하기 위하여 상관관계분석을 실시하였다. 분석결과 교통사고율이 유의한 결과를 나타냄에 따라 교통사고율을 교통안전변수로 선정하였다. 터널 길이에 따라 교통안전변수가 큰 폭으로 증가하는 지점은 사고발생가능성이 높은 지점으로 볼 수 있다. 따라서 해당 지점을 선정하기 위해 교통안전변수의 분포표를 작성하였으며, 교통안전변수가 크게 증가하는 구간을 임계점으로 설정하였다. 그리고 해당 임계점에 도달하기 이전의 길이를 장대터널의 적정길이로 설정하였다. 본 연구에서 제시한 장대터널의 적정길이를 통해 향후 장대터널에서 발생하는 교통사고 감소에 기여할 수 있을 것으로 판단된다.

Tunnel reduces travel time as and it is essential facilities for the eco-friendly road construction. In recent years, It has been accelerating the tunnel construction to provide a higher level of traffic service but a driver driving in the narrow and dark tunnel takes characteristically psychological anxiety and the restriction of the sight. Moreover, A driver passing through more than 1,000m long tunnel, as to pass inside the monotonous form of the tunnel for a long time can cause drowsiness and increase the driver load. This driver load can degrade road-holding of the inside of the long tunnel highly and pose a high risk of accidents. Accordingly, In this study is to present the proper length of the Tunnel, considering the characteristics of traffic accident. For this, this study is that the long tunnel that affects traffic safety traffic safety variables are selected and classified. Traffic safety variables are classified in detail as a variable of the traffic accident and velocity one, the applicable variables the number of the traffic accident, the ratio of the traffic accident, driving velocity, the individual vehicle velocity etc. Traffic safety variables are categorized as more than a pole length of the tunnel in order to examine its impact on correlation analysis. The results indicate significant results in traffic accidents in accordance with traffic accidents, traffic safety, selects the variable was Variable depending on the length of the tunnel traffic safety point of significantly increasing the possibility of an accident can be seen as a high point. And the point of the Distribution of selected variables in order to create a traffic safety was a significant increase in traffic safety variables was set at critical intervals. Before reaching the critical point and the corresponding length of the long tunnel was set at the proper length. In this study, the optimum length of the proposed long tunnel through the long tunnel that occur in the future to contribute to reducing traffic accidents would be able to be determined.

키워드

참고문헌

  1. Akamatsu, M., Imachou, N., Sasaki, Y., Ushiro-Oka, H., Hamanaka, T., Sakauchi, Y. and Onuk, M. (2003). "Simulator study on driver's behavior while driving through a tunnel in rolling area." Proc. of the Driving Simulation Conference, M.I.
  2. Amundsen, F. H. (1992) "Driver behavior in norwegian road tunnels." Toward a Deeper Understanding. Directorate of Public Roads, Oslo.
  3. Kang, N. W. (2001). "Yuksimnyeong tunnel ventilation using disused railroad inclined shaft." Korean Tunneling Association, Vol. 2001, No. 5, pp. 111-136.
  4. Kim, J. H., Kim, H. Y., Keum, K. J. and Kim M. S. (2000). "A study on the driver visual behavior on highway tunnel section." KSCE Journal of Civil Engineering, Vol. 20, No. 3-D, pp. 273-282.
  5. Kim, J. M. and Noh, K. S. (2007). "Drivers' behavior on long tunnel using driving simulator." 2007 Journal of the Korean Society of Road Engineers.
  6. Lee, H. S. (2002). A study on the speed variation characteristics in tunnel section of the expressway, Master's Thesis, Kwandong University.
  7. Lee, J. H., Kim, J. W., Kim, D. S. and Lee, S. B. (2008). "A Study on safety improvement of safety devices at entrance of expressway tunnels." Journal of the Korean Society of Road Engineers, Vol. 10, No. 4, pp. 235-245.
  8. Lee, K. Y. and Lee, H. B. (2004). "A study on the speed reduction factor in expressway tunnel section." Korea Road & Transportation Association, Vol. 97.
  9. Martens, M. H., Tonrors, J. and Kaptein, M. A. (2000). Effects of emergengy lane, exits and entries and wall pattern in tennels on driving behavior: Driving simulator studies, Safety Standards for Road Design and Redesign, SAFESTAR Project.
  10. Ministry of Land (2008). Explanation and guidelines on the standards of road structure and facilities (in Korean).
  11. Ministry of Land (2008). Highway design manual (in Korean).
  12. Park, H. J., Hwang, K. J. and Shin, H. J. (2007). "A study on driver's characteristics in long tunnel using driving simulator." Journal of the Ergonomics Society of Korea, Vol. 26, No. 2, pp. 89-102. https://doi.org/10.5143/JESK.2007.26.2.089
  13. Ryu, J. B., Shin, Y. K., Park, S. J. and Han, J. H. (2011). "The simulator study on driving safety while driving through the longitudinal tunnel." Journal of the Korean Society of Road Engineers, Vol. 13, No. 1, pp. 149-156. https://doi.org/10.7855/IJHE.2011.13.1.149
  14. Shin, Y. K and et al. (1996). "The influence of geometric design of motorway on driver's driving behaviour." Road Traffic Authority, 96-13-286.
  15. Wang, Y. W., Keum, K. J., Son, S. N., Yoo, J. S. (2010). "A study on development evaluation modeling internal landscape in tunnel considering human sensitivity engineering." Journal of the Korean Society of Road Engineers, Vol. 12, No. 1, pp. 9-20.