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http://dx.doi.org/10.7855/IJHE.2013.15.3.103

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

Jeong, Seungwon (서울시립대학교 교통공학과)
Kim, Sangyoup (전북발전연구원 새만금지역개발연구부)
Choi, Jaisung (서울시립대학교 교통공학과)
Kim, Hongjin (한국도로공사 스마트하이웨이사업단)
Jang, Taeyoun (전북대학교 도시공학과)
Publication Information
International Journal of Highway Engineering / v.15, no.3, 2013 , pp. 103-115 More about this Journal
Abstract
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.
Keywords
horizontal radius; superelevation; side friction factor; anxiety EEG(electroencephalography); increasing design speed; distribution method;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 MLTMA. Highway Geometric Design Standards and Regulation. Ministry of Land & Transportation and Maritime Affairs, Seoul, Korea, 2009.
2 AASHTO, A Policy on Geometric Design of Highways and Streets, 2011.
3 Texas Transportation Institute, CRITERIA FOR HIGH DESIGN SPEED FACILITIES, 2007.
4 Austroads, Rural Road Design; A Guide to the Geometric Design of Rural Roads, 2003.
5 Park, Jejin, Kim, Y., Ko, Y., Ha, T., 2008. Evaluation of horizontal curve transition section using lateral acceleration model, International Journal of Highway Engineering, Vol. 10. No. 2. 133-141.
6 Kim, Yongseok, Cho, W., 2004. An observational study on the driver behaviours at long tangent sections followed by sharp horizontal curve, Journal of Korean Society of Transportation, Vol. 22. No. 7. 139-146.   과학기술학회마을
7 Lee, Jongdal, Lee, Y., Kwon, K., Jeong, K., 2001. A study on the improvement of highway superelevation considering gravity genter of vehicles -The case of S curve in I.C.-, Journal of Korean Society of Civil Engineers, Vol. 21. No. 1D. 53-59.
8 Jeong, Junhwa, Yu, S., Yun, Y., 2000. Analysis of the driver's behavior at horizontal curves, Journal of Korean Society of Civil Engineers, Vol. 20. No. 1. 67-75.
9 Jeong, Junhwa, Park, Y., Park, C., 2000. A design method of horizontal curve based on speeds, Journal of Korean Society of Civil Engineers, Vol 22. No. 5. 537-547.   과학기술학회마을
10 Son, Youngtae, Kang, J., Eu, Na., 2009. Studies on the change of driver brain wave according to road type, Conference of Korean Society of Road Engineers, 59-71.
11 G. Kanellaidis, 1989. Aspect of Highway superelevation design, Journal of Transportation Engineering, Vol. 117, No. 6, pp. 624-632.
12 Choi, J., Lee, S., Kim, S., Lim, J. and Kim, K., 2012. A Study of the Relationship between Driver's Anxiety EEG & Driving Speed in Motorway Sections. The Korean Society of Safety, Volume 27, No. 3.
13 Herrstedt, L., 1995. Development of Speed Management Methods for Use in Rural Areas, 3rd : Conference Proceedings of the Transportation Research Board.