International Journal of Highway Engineering (한국도로학회논문집)

Korean Society of Road Engineers (한국도로학회)
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Determining the Required Minimum Spacing between Freeway Interchange for High-speed Roadway

초고속 주행환경에서의 진출입 시설간 적정 이격거리 기준 산정 연구

  • 김흥래 ((주)평화엔지니어링 연구원) ;
  • 김경수 ((주)평화엔지니어링 연구원) ;
  • 이근희 ((주)평화엔지니어링 연구원) ;
  • 신준수 (한국도로공사 스마트하이웨이사업단) ;
  • 백정길 (한국도로협회 기술국)
  • Received : 2017.01.23
  • Accepted : 2017.02.07
  • Published : 2017.06.15
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Abstract

PURPOSES: The objective of this study is to estimate required minimum spacing between Freeway IC for high-speed roadways. METHODS : Since high-speed roadways with over 140 km/h design speed do not exist in Korea, VISSIM Simulation Program was used for analysis. Acceleration noise and conflicts were selected for Evaluation Index. Standard deviation size for acceleration and deceleration was calculated by VISSIM to estimate acceleration noise. Conflicts were produced in areas between Freeway IC with SSAM. RESULTS : As a result, required minimum spacing was 6 km for acceleration noise analysis, while 5 km was deducted for conflict analysis. For Model Evaluation, with SAS, conflicts did not show much difference in 5~6 km area by 90% confidence interval. CONCLUSIONS : For acceleration noise, results showed lacking in its discrimination between index per Minimum Spacing. However, conflicts were valid in difference; required minimum spacing was 5 km by validation result.

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