系統交通信號體系에서의 遲滯特性과 最適信號週期에 관한 硏究

서지정보

ㆍ발행기관 : 대한교통학회 ㆍ수록지정보 : 대한교통학회지 / 10권 / 3호
ㆍ저자명 : 李光勲

목차

ABSTRACT
Ⅰ. 서론
Ⅱ. 硏究에 사용된 시뮬레이션 技法
Ⅲ. 系統信號路線에서의 交通流遲滯特性
Ⅳ. 系統信號의 最適信號週期
Ⅴ. 結論
參考文獻

영어 초록

The common cycle time for the linked signals is usually determined for the critical intersecion, just because the cpacity of a signalized intersection depends on the cycle time. This may not be optimal since the interactions between the flow and the spatial structure of the route or the area are disregarded in this case.
It is common to separate the total delay incurred at signals into two parts, a deterministic or uniform delay and a stochastic or random delay. The deterministic delays and the stochastic delays on the artery particularly related to signal cycle time. For this purpose a microscopic simulation technique is used to evaluate deterministic delays, and a macroscopic simulation technique based on the principles of Markov chains is used to evaluate stochastic delays with over flow queue.
As a result of investigating the relations between deterministic delays and cycle time in the various circumstances of spacing of signals and traffic volume.
As for stochastic delays the resalts of comparisons of the macroscopic simulation and Newell's approximation with the microscopic simulation indicate that the former is valid for the degree of saturation less than 0.95 and the latter is for that above 0.95.
Newell's argument that the total stochastic delay on an arterial is dominated by that at or caused by critical intersection is certified by the simulation experiments.
The comprehensive analyses of the values of optimal cycle time with various conditions lead to a model. The cycle time determined by this model shows to be approximately 70% of that calculated by Webster's.

참고 자료

없음