지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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PURPOSES: The purpose of this study theoretically reviews vertical grade deriving process in super high speed environment and compares overseas design criteria with Domestic Standardization also draws suitable vertical grade design criteria of high standard for Domestic Circumstances in Korea. METHODS : By researching domestic vehicle registration status, calculating typical vehicle, using Vissim which is traffic simulation program, Speed-distance curve of the vehicle is derived under each design speed condition. Through Speed-distance curve, estimating critical length of grade and considering critical length of grade, maximum longitudinal incline is proposed. RESULTS : The result of domestic vehicle registration status, the typical vehicle for deriving vertical grade is calculated based on gravity horsepower ratio 200 lb/hp. For calculating critical length of grade, according to change speed of uphill entry, speed-distance curve is derived by using Vissim. Critical length of grade is calculated based on design speed 20 km/h criteria which is point of retardation. Estimated critical length of grade is 808 m and based on this result, maximum longitudinal incline was confirmed in the design speed between 130km/h to 140km/h. CONCLUSIONS: The case of the typical vehicle(truck) which is gravity horsepower ratio 200 lb/hp, maximum longitudinal incline 2% is desirable at the super high speed environment in the design speed between 130km/h to 140km/h.
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참고문헌 (12)
참고문헌 신청
AASHTO / 2011 / A policy on geometric design of Highways and Streets
Choi Jae-seong / 2001 / Development of Truck Performance Curves for Upgrade on Highways / The journal of Korean society of Transportation 19(6):119~129
Kim Mun-gyeom / 2008 / Analysis of Major Geometric Design Elements in High Type Freeway Alignment Design
김상엽 / 2007 / 차량성능을 고려한 최대종단경사 합리화 연구 / 대한교통학회지 25(5):79~90
Kim Yeong-il / 2007 / Theoretical Review on the Geometric Design Standards for High Type Freeways / The journal of Korean society of Transportation, Proceedings of the KOR-KST Conference 2007(5)
Choi Jae-seong / 2001 / Development of Truck Performance Curves for Upgrade on Highways / The journal of Korean society of Transportation 19(6):119~129
Kim Mun-gyeom / 2008 / Analysis of Major Geometric Design Elements in High Type Freeway Alignment Design
김상엽 / 2007 / 차량성능을 고려한 최대종단경사 합리화 연구 / 대한교통학회지 25(5):79~90
Kim Yeong-il / 2007 / Theoretical Review on the Geometric Design Standards for High Type Freeways / The journal of Korean society of Transportation, Proceedings of the KOR-KST Conference 2007(5)
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