DOI QR코드

DOI QR Code

도로교통 여건과 제한속도 변화에 따른 교통소통과 안전에 관한 영향 분석 연구

A Study on the Impacts of Changes in Road Traffic Conditions and Speed Limits on Traffic Flow and Safety

  • 문남식 (안양대학교 도시정보공학과) ;
  • 신언교 (안양대학교 도시정보공학과) ;
  • 김주현 (안양대학교 도시정보공학과)
  • Nam sik Moon (Dept. of Urban Information Eng., Anyang Univ.) ;
  • Eon kyo Shin (Dept. of Urban Information Eng., Anyang Univ.) ;
  • Ju hyun Kim (Dept. of Urban Information Eng., Anyang Univ.)
  • 투고 : 2024.02.01
  • 심사 : 2024.03.18
  • 발행 : 2024.04.30

초록

본 논문에서는 도로교통 여건과 제한속도 변화가 교통소통과 안전에 미치는 영향을 분석하였다. 교통소통지표로 통행속도와 순행속도, 「순행속도-통행속도」, 편차, 대편차비율, 상충횟수 등을 안전지표로 설정하고 도로교통 여건과 제한속도 변화가 이들에 미치는 영향을 분석하였다. 분석 결과에 의하면 제한속도는 소통지표에는 크게 영향을 주지만 안전지표에는 크게 영향을 주지 않는 것으로 분석되었다. 통계적 유의성 검정 결과 제한속도가 증가함에 따라 소통지표는 증가한다는 것이 유의하다고 입증되었다. 그러나 안전지표들은 증가하는 경우가 많지만 통계적으로는 유의성이 입증되지 않았다. 그러므로 다양한 도로여건과 교통량 변화에 따른 교통흐름 상태를 현실적으로 고려해서 제한속도가 설정되고 운영된다면 운전자들이 주행하는 속도에 부합되고 교통소통과 안전이 향상된다고 할 수 있다. 따라서 본 논문에서 제시한 교통소통지표와 안전지표들을 고려하여 제한속도를 산정하고 교통량 변화에 따라 제한속도를 운영할 경우 도로상의 교통 흐름을 안정화시키는 데 기여할 것으로 기대된다.

In this paper, we analyzed the impacts of road traffic conditions and speed limit changes on traffic flow and safety. Travel speed and moving speed were set as traffic flow indicators and'moving speed-travel speed',speed deviation, large speed deviation ratio, and number of conflicts were set as safety indicators, and the impacts of changes in road traffic conditions and speed limits on these were analyzed. According to the analysis results, the speed limit had a significant impacts on the traffic indicators, but did not significantly affect the safety indicators. As a result of the statistical validity test, it was proven that the traffic flow index increases as the speed limit increases. However, although safety indicators often increase, their validity has not been proven statistically. Therefore, if the speed limit is set and operated by properly considering the traffic flow status according to various road conditions and changes in traffic volume, it can be said to match the speed at which drivers drive and improve traffic flow and safety. Therefore, it is expected that calculating the speed limit considering the traffic flow indicators and safety indicators presented in this paper and operating the speed limit according to changes in traffic volume will contribute to stabilizing the traffic flow on the road.

키워드

참고문헌

  1. FHWA(Federal Highway Administration)(2008), Surrogate Safety Assessment Model.
  2. Garber, N. J. and Gadiraju, R. G.(1989), "Factors Affecting Speed Variance and Its Influence on Accidents", Transportation Research Record, vol. 1213, pp.64-71.
  3. Jack, S. and Zail, C.(1998), Synthesis of Safety Research Related to Speed and Speed Management, Federal Highway Administration, FHWA-RD-98-154.
  4. Jin, T. H.(2021), Suggestion of Reasonable Speed Limit Criteria Considering Traffic Safety and Flown, Doctoral Dissertation, Graduate School of Chonnam National University.
  5. Kang, S. Y., Lee, S. B. and Lim, J. B.(2017), "Development of Speed Limits Estimation Model and Analysis of Effects in Urban Roads", Journal of the Korean Society of Safety, vol. 32, no. 2, pp.132-146. https://doi.org/10.14346/JKOSOS.2017.32.2.132
  6. Korea Road Authority(2019), 2019 Safety Speed 5030 Basic Design and Effect Analysis.
  7. Korea Transport Institute(2017), A Study on The Speed Limit Management in Urban Roads.
  8. Korean National Police Agency(2020), Variable Speed Limit System Installation and Operation Manual.
  9. Korean National Police Agency(2022), Road Traffic Act Enforcement Rules.
  10. Lim, C. S. and Choi, Y. W.(2018), "Study of Downward Speed Limit of Main Roads on Traffic Accident and Effect Analysis: In Busan Metropolitan City", Journal of Civil and Environmental Engineering Research, vol. 38, no. 1, pp.81-90.
  11. Ministry of Land, Infrastructure and Traffic, Korean National Police Agency(2019), Safety Speed 5030 Design and Operation Manual.
  12. Ministry of Land, Infrastructure and Transport(2020), Rules Commentary and Guidelines for Road Structure and Facility Standards.
  13. Ministry of Land, Infrastructure, and Transport(2013), Korea Highway Capacity Manual(KHCM), South Korea.
  14. Shin, E. K. and Kim, J. H.(2022), "A Study on the Speed Change on the Arterial Road according to Traffic Volume and Speed Limit", The Journal of the Korea Institute of Intelligent Transportation Systems, vol. 21, no. 5, pp.149-161. https://doi.org/10.12815/kits.2022.21.5.149