Model for accurate speed measurement using double-loop detectors

Vehicle speed is an important parameter in measurements of road traffic. At present, double-loop detectors are generally used for vehicular speed measurement. However, these detectors incur errors caused by scanning time, spacing between double loops, irregular vehicle trajectories, and the presence...

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Bibliographic Details
Published in:IEEE transactions on vehicular technology 2006-07, Vol.55 (4), p.1094-1101
Main Authors: KI, Yong-Kul, BAIK, Doo-Kwon
Format: Article
Language:English
Subjects:
Accuracy
Applied sciences
Automotive engineering
Control systems
Detection, estimation, filtering, equalization, prediction
Detectors
Double-loop detectors
Error analysis
Errors
Exact sciences and technology
filtering algorithm
Information, signal and communications theory
irregular driving vehicles (IDVs)
loop design
multiple vehicles in the detection zone (MVDZs)
Roads
Scanning
Signal and communications theory
Signal, noise
Telecommunications and information theory
Tolerances
Traffic control
Vehicle detection
Vehicle driving
Vehicles
Velocity measurement
Wire
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Summary:Vehicle speed is an important parameter in measurements of road traffic. At present, double-loop detectors are generally used for vehicular speed measurement. However, these detectors incur errors caused by scanning time, spacing between double loops, irregular vehicle trajectories, and the presence of multiple vehicles in the detection zone. This paper suggests a new model that uses an error-filtering algorithm to improve the accuracy of speed measurements. In the field tests, all percent errors of the vehicular speeds measured by the proposed model were within the error tolerance limit (plusmn5%). Furthermore, the variance of percent errors was reduced. Therefore, it can be concluded that the proposed model significantly improves vehicle-speed-measuring accuracy
ISSN:0018-9545
1939-9359
DOI:10.1109/TVT.2006.877462