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http://dx.doi.org/10.7471/ikeee.2022.26.4.590

Traffic Regulation Algorithm for Metro Lines with Time Delay  

Min-Kee, Park (Dept. of Electronic and IT Media Engineering, Seoul National University of Science and Technology)
Publication Information
Journal of IKEEE / v.26, no.4, 2022 , pp. 590-595 More about this Journal
Abstract
When a train is delayed because of a disturbance, the time interval deviation between successive trains increases, and high frequency metro lines can become unstable. Thus, it is necessary to control the traffic regularity to prevent any such instability. In this paper, we propose a simple but effective traffic regulation algorithm that gurantees system stability. In the proposed method, the control algorithm for running time is designed using a discrete traffic model where control input is determined from a linear combination of departure time deviations and control input of the preceding train to ensure an optimal time interval between successive trains. The results of the computer simulation are also given to demonstrate the validity of the proposed algorithm.
Keywords
Traffic regulation; Traffic control; Traffic Model; Train interval; Stability;
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