Turning movement (TM) data of vehicular traffic at intersections are a basic input for signal timing design. Existing methods of collecting TM data are time- and cost-intensive. Using connected vehicle (CV) data is an alternative method. Trajectories of vehicles through an intersection can be constructed using CV data. However, because of the low number of CVs in the traffic stream, it is imprecise to consider TM data from CVs as representative of the whole traffic flow. To address this issue, a Kalman filter (KF) for estimating TM rates at intersections based on CV data under low market penetration levels using commercially available connected vehicle data was developed in this study. This method is independent of intersection geometry or the presence of shared lanes. The algorithm was evaluated using data from an intersection in Salt Lake City, Utah. The manually collected TM counts at this intersection were compared with the raw CV data as well as the results obtained from the developed methodology. The comparison shows that while TM counts based on raw CV data show severe violations in accuracy, making them unreliable, the method developed in this research gives results that have much lower accuracy violations.
Development of a Turning Movement Estimator Using CV Data
2023
Article (Journal)
Electronic Resource
Unknown
Metadata by DOAJ is licensed under CC BY-SA 1.0
An intersection turning movement estimation procedure based on path flow estimator
Online Contents | 2012
|Network-level turning movement counts estimation using traffic controller event-based data
Taylor & Francis Verlag | 2023
|Turning Movement Estimation in Real Time
British Library Online Contents | 1997
|BYTECounter: Improving Vehicle Turning-Movement Counting
IEEE | 2023
|Turning Movement Estimation in Real Time
Online Contents | 1997
|