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A Queue Length Prediction Algorithm using Kalman Filter  

심소정 (서울시정개발연구원)
이청원 (서울시정개발연구원)
최기주 (아주대학교 교통공학전공)
Publication Information
Journal of Korean Society of Transportation / v.20, no.5, 2002 , pp. 145-152 More about this Journal
Abstract
Real-time queueing information and/or predictive queue built-up information can be a good criterion in selecting travel options, such as routes, both for users, and for operators in operating transportation system. Provided properly, it will be a key information for reducing traffic congestion. Also, it helps drivers be able to select optimal roues and operators be able to manage the system effectively as a whole. To produce the predictive queue information, this paper proposes a predictive model for estimating and predicting queue lengths, mainly based on Kalman Filter. It has a structure of having state space model for predicting queue length which is set as observational variable. It has been applied for the Namsan first tunnel and the application results indicate that the model is quite reasonable in its efficacy and can be applicable for various ATIS system architecture. Some limitations and future research agenda have also been discussed.
Keywords
ATIS; Kalman filter;
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