고속도로 유형별 교통류 모형 정산 (A Calibration of the fundamental Diagram on the Type of Expressway)

서지정보

· 발행기관 : 한국도로학회
· 수록지 정보 : 한국도로학회논문집 / 16권 / 4호 / 119 ~ 126페이지
· 저자명 : 윤재용, 이의은, 김현명, 한동희, 이동윤, 이충식

초록

PURPOSES: Used in transportation planning and traffic engineering, almost traffic simulation tools have input variable values optimized byoverseas traffic flow attribution because they are almost developed in overseas country. Thus, model calibration appropriated for internal trafficflow attribution is needed to improve reliability of simulation method.
METHODS : In this study, the traffic flow model calibration is based on expressways. For model calibration, it needs to define eachexpressway link according to attribution, thus it is classified by design speed, geometric conditions and number of lanes. And modifiedgreenshield model is used as traffic flow model.
RESULTS : The result of the traffic model calibration indicates that internal congested density is lower than overseas. And the result ofanalysis according to the link attribution indicates that the more design speed and number of lanes increase, the lower the minimum speed, thehigher the congested density.
CONCLUSIONS: In the traffic simulation tool developed in overseas, the traffic flow is different as design speed and number of lanes, butroad segment don't affect traffic flow. Therefore, these results need to apply reasonably to internal traffic simulation method.

영어초록

PURPOSES: Used in transportation planning and traffic engineering, almost traffic simulation tools have input variable values optimized byoverseas traffic flow attribution because they are almost developed in overseas country. Thus, model calibration appropriated for internal trafficflow attribution is needed to improve reliability of simulation method.
METHODS : In this study, the traffic flow model calibration is based on expressways. For model calibration, it needs to define eachexpressway link according to attribution, thus it is classified by design speed, geometric conditions and number of lanes. And modifiedgreenshield model is used as traffic flow model.
RESULTS : The result of the traffic model calibration indicates that internal congested density is lower than overseas. And the result ofanalysis according to the link attribution indicates that the more design speed and number of lanes increase, the lower the minimum speed, thehigher the congested density.
CONCLUSIONS: In the traffic simulation tool developed in overseas, the traffic flow is different as design speed and number of lanes, butroad segment don't affect traffic flow. Therefore, these results need to apply reasonably to internal traffic simulation method.

참고자료

· 없음