Abstract

Recently, roadside lidar sensors have been adopted as a reliable measure to extract high-resolution vehicle trajectory data from the field. The trajectory-level data can be extracted from roadside lidar detection using a series of data processing algorithms such as background filtering, object clustering, object classification, and object tracking. However, the results from current methods are associated with trajectory fluctuations, indicating that vehicle trajectory optimization remains a challenge. Previous studies used traditional Kalman filters to optimize vehicle trajectories, but there remains room for improvement in the smoothing effect. This paper addresses the issue by presenting an effective method for trajectory smoothing using the adaptive Kalman filter. The proposed method demonstrates two significant highlights: a multipoint matching algorithm for velocity estimation, and a robust adaptive strategy for Kalman filter. The performance of the proposed method was found to be satisfactory after evaluation using field data collected at a site in Reno, Nevada. Additionally, the method can be implemented under simple prior assumptions, making it user-friendly for real-world applications.

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Data Availability Statement

Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.

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Go to Journal of Transportation Engineering, Part A: Systems
Journal of Transportation Engineering, Part A: Systems
Volume 149Issue 6June 2023

History

Received: May 19, 2022
Accepted: Jan 30, 2023
Published online: Apr 4, 2023
Published in print: Jun 1, 2023
Discussion open until: Sep 4, 2023

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Lecturer, College of Civil and Architectural Engineering, North China Univ. of Science and Technology, Tangshan 063210, China; Doctoral Researcher, Tangshan Key Laboratory of Air-Ground Intelligent Transportation, North China Univ. of Science and Technology, Tangshan 063210, China. ORCID: https://orcid.org/0000-0002-7943-3989. Email: [email protected]
Nischal Bhattarai [email protected]
Ph.D. Student, Dept. of Civil, Construction and Environmental Engineering, Texas Tech Univ., Lubbock, TX 79409. Email: [email protected]
Professor, College of Transportation Engineering, Chang’an Univ., Xi’an 710064, China. ORCID: https://orcid.org/0000-0002-1339-9669. Email: [email protected]
Professor, Dept. of Civil and Environmental Engineering, Univ. of Nevada, Reno, NV 89557. ORCID: https://orcid.org/0000-0003-1314-4540. Email: [email protected]
Professor, Dept. of Civil, Construction and Environmental Engineering, Texas Tech Univ., Lubbock, TX 79409 (corresponding author). ORCID: https://orcid.org/0000-0001-7092-9606. Email: [email protected]

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Cited by

  • Multi-Type Traffic Conflict Identification at Signalized Intersections Based on LiDAR Point Cloud, Transportation Research Record: Journal of the Transportation Research Board, 10.1177/03611981241235178, (2024).
  • Research on an Adaptive Method for the Angle Calibration of Roadside LiDAR Point Clouds, Sensors, 10.3390/s23177542, 23, 17, (7542), (2023).
  • Improved Speed Control Strategy for Mixed Traffic Flow Considering Roadside Unit, Journal of Transportation Engineering, Part A: Systems, 10.1061/JTEPBS.TEENG-7428, 149, 11, (2023).
  • Crash frequency prediction based on extreme value theory using roadside lidar-based vehicle trajectory data, Accident Analysis & Prevention, 10.1016/j.aap.2023.107306, 193, (107306), (2023).

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