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A Study on Evaluation of Consistency Using 3-Dimensional Sight Distance  

Park, Je-Jin (한국도로공사 도로교통연구원)
Oh, Young-Wook (도로교통안전관리공단 전남지부)
Kang, Jeong-Gyu (한국도로공사 도로교통연구원)
Ha, Tae-Jun (전남대학교 토목공학과)
Publication Information
Journal of Korean Society of Transportation / v.26, no.3, 2008 , pp. 187-197 More about this Journal
Abstract
While driving a highway, A driver gets lots of information through geometrical structure, traffic situation, signs on the road. He gets most of the information by visual sense. Acceleration or deceleration and driving direction depend on sight distance. Therefore, it's essential to secure a driver's sight distance for a safe drive. However, design guides of geometrical structure and sight distance suggest respective standards of horizontal and vertical alignment. They do not indicate quantitative standard of combined alignment. Currently, element separated on a two-dimensional projected plane are available, but they do not guarantee safe and pleasant design. I will use the existent model analysing three-dimensional sight distance through mathematical calculation and sort a variety of geometrical structure element and type. In these researches, we will look at how much three-dimensional sight distance is overestimated or underestimated compared to two-dimensional. I will develop a program which predicts traffic velocity on the curvature of two-lane provincial road. stopped sight distance and three-dimensional sight distance will be compared at a predicted drive velocity. I will suggest the way to evaluate road consistency.
Keywords
Two-Lane Rural Highway; Three-Dimensional Sight Distance; Design Consistency; Speed Prediction Model; Geometry;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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