| 초기변수의 불확실성이 신호교차로 지체모형 및 서비스수준 예측에 미치는 영향 분석 |
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김성득, 박원규, 김경규 |
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| A Effect of Unreliable Default Parameter in Forecasting Delay and Level of Service of Signalized Intersection |
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Sung-Deuk Kim, Won-Kyu Park, Kyung-Kyu Kim |
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| Abstract |
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In the Signalized Intersection, the capacity analysis is conducted with a large amount of input data such as road way, traffic and signal condition. but the level of service(LOS) is determined by delay estimated as a measure of effectiveness (MOE) based on this procedure. However, It is under the circumstances which are not considered for the errors caused by the uncertainty of input data in the field(the turning volumes, lane geometry, signal timing, grade of approach lane, percentage heavy vehicles, peak hour factor and arrival type etc.) as become the bases in the determination of the capacity and LOS. It includes the problem of reliability which is not verified for the capacity and LOS estimated. So, this study is to suggest the minimization of their influences by examining whether the uncertainty of input data such as the traffic volume, percentage of heavy vehicles and roadway geometry on the approach lane in the intersection under the study affects the capacity analysis and LOS determination. |
| Key Words:
Iuput Parameters;Sensitivity Analysis;level of Service;Signalized Intersection |
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