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설계속도 상향에 따른 인간공학적 특성을 반영한 편경사와 횡방향마찰계수 분배방법에 관한 연구

A Study for Distribution Methods Between Superelevation and Side Friction Factor Reflecting Ergonomic Characteristics by Increasing Design Speed

  • 정승원 (서울시립대학교 교통공학과) ;
  • 김상엽 (전북발전연구원 새만금지역개발연구부) ;
  • 최재성 (서울시립대학교 교통공학과) ;
  • 김홍진 (한국도로공사 스마트하이웨이사업단) ;
  • 장태연 (전북대학교 도시공학과)
  • 투고 : 2012.05.29
  • 심사 : 2013.05.27
  • 발행 : 2013.06.17

초록

PURPOSES: The purpose of this study is to develop a method for distribution between superelevation and side friction factor by increasing design speed. METHODS: First of all, a method for distribution between superelevation and side friction factor and a theory for the functional formula of side friction factor in compliance with horizontal radius applied in South Korea and the United States are considered. Especially, design speed of 140km/h and numerical value of design elements are applied to the theory for the functional formula of side friction factor in AASHTO's methods. Also, the anxiety EEG upon running speed is measured to reflect ergonomic characteristics through field experiments at seven curve sections of the West Coast Freeway, and this data is applied to graph for the functional formula of side friction factor. RESULTS : Matching side friction factor against the anxiety EEG, the results that a critical points of driver's anxiety EEG sharply increase locate under existing parabola are figured out. CONCLUSIONS : Therefore, we could get a new type of the functional formula that driver's driving comfortability is guaranteed if the existing the functional formula of side friction factor goes down under boundary of the critical points of the anxiety EEG.

키워드

참고문헌

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