Application of Doppler Effect in Speed Measurement of Traffic Vehicles in Roundabouts

Journal: Architecture Engineering and Science DOI: 10.32629/aes.v6i3.4234

Kaiyi Gu

NAS-NTFLS Cambridge International Centre, Nantong, Jiangsu, China

Abstract

Objective: To verify whether the Doppler effect can accurately measure the speed of the roundabout section. Methodology: First-hand research, conduct experiments. The speed of the remote-control trolley is measured at different frequencies and different speeds and the error is recorded, and the feasibility and the method of reducing the error are explored. Second-hand research, consult information. Understand the background knowledge of each module in the study, such as the development history of the Doppler effect, current traffic conditions, and commonly used traffic speed measurement devices. Results: This finding suggests that velocity is a critical factor influencing measurement accuracy in this experimental setup, while source frequency appears to have no meaningful impact on error rates. Conclusion: The accuracy of this measurement was found to improve as mainly the velocity increase. As for the effect of detection frequency on measurement accuracy, no strong correlation has been found, and the authors plan to use it as part of future research.

Keywords

Doppler effect, Roundabouts, Traffic, Speed measurement

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