城市快速路路段行程时间估计方法

doi:10.16088/j.issn.1001-6600.2022032504

Abstract

Abstract: In order to effectively improve the travel time estimation accuracy of urban expressway sections, this paper presents a travel time estimation method based on adaptive filtering and grid virtual vehicle. The velocity data between fixed detectors are obtained by adaptive smoothing filter interpolation, and the spatiotemporal velocity field between fixed detectors is reconstructed. Then the reconstructed velocity field is subdivided into several grid elements. The road travel time is estimated by calculating the virtual trajectory of the virtual vehicle in the reconstructed space-time velocity field. Finally, the measured data of induction coil on urban expressway are selected for example verification.The experimental results show that the root mean square error of this method is 0.15, 0.35 and 1.06, respectively, and the average relative error is less than 10%, so it has high estimation accuracy.

Key words: traffic engineering, travel time estimation, adaptive smoothing filter, velocity field reconstruction, grid virtual car

CLC Number:

U491

ZHANG Weijian, BING Qichun, SHEN Fuxin, HU Yanran, GAO Peng. Travel Time Estimation Method of Urban Expressway Section[J].Journal of Guangxi Normal University(Natural Science Edition), 2023, 41(2): 49-57.

References

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Travel Time Estimation Method of Urban Expressway Section

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