PDMS-FBG-Based Fiber Optic System for Traffic Monitoring in Urban Areas

This article introduces fiber Bragg grating (FBG) system for monitoring selected traffic flow parameters in urban areas. The system is able to monitor traffic density or speed of cars driving in single lane. The proposed system consists of five Bragg gratings encapsulated in Polydimethylsiloxane pol...

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Veröffentlicht in:	IEEE access 2020, Vol.8, p.127648-127658
Hauptverfasser:	Fajkus, Marcel, Fridrich, Michael, Nedoma, Jan, Kahankova, Radana, Martinek, Radek, Bednar, Emil, Kolarik, Jakub
Format:	Artikel
Sprache:	eng
Schlagworte:	Asphalt mixes Automobiles Bragg gratings Error analysis Fiber Bragg grating Fiber optics Flow-density-speed relationships Monitoring Optical fiber sensors Optical fibers PDMS-FBG sensor Polydimethylsiloxane road traffic monitoring Roads speed measurement Traffic flow Traffic speed Traffic volume Urban areas
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Zusammenfassung:	This article introduces fiber Bragg grating (FBG) system for monitoring selected traffic flow parameters in urban areas. The system is able to monitor traffic density or speed of cars driving in single lane. The proposed system consists of five Bragg gratings encapsulated in Polydimethylsiloxane polymer and is characterized by easy and inexpensive installation in the milled upper layer of the road covered with an asphalt mixture. The results of first operational tests presented in this study include 3978 passing vehicles of various specifications. The system's vehicle detection success rate is 99.62%. And further, a mean absolute error 1.35 kph and a relative error 2.62% when measuring vehicle speed.
ISSN:	2169-3536 2169-3536
DOI:	10.1109/ACCESS.2020.3006985