A convex model for queue length estimation in a connected vehicle environment
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Date
2017-01
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Conference Paper
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Abstract
This paper presents a convex model for real-time queue length estimation in a connected vehicle environment. The proposed model is based on kinematic wave theory with the assumption of a triangular fundamental diagram. It first identifies the critical points where the traffic state changes, and then estimates the piecewise linear back of queue (BoQ) curve using a convex model. The arrival flow can also be recovered from the estimated BoQ curve. The proposed model does not require a priori information on signal timing, penetration rates or traffic flows. The algorithm is tested with NGSIM data. Results show that the mean absolute error of the algorithm is within 1 cars even for low penetration rates. It is also shown that the algorithm is robust to the measurement errors.
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TRB 96th Annual Meeting Compendium of Papers
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Transportation Research Board
Event
96th Annual Meeting of the Transportation Research Board (TRB 2017)
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Organisational unit
08686 - Gruppe Strassenverkehrstechnik
02226 - NSL - Netzwerk Stadt und Landschaft / NSL - Network City and Landscape
02655 - Netzwerk Stadt u. Landschaft ARCH u BAUG / Network City and Landscape ARCH and BAUG