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Article

Validation of a Low-Cost Pavement Monitoring Inertial-Based System for Urban Road Networks

1
Department of Civil, Constructional and Environmental Engineering, Sapienza University, Via Eudossiana, 18-00184 Rome, Italy
2
Department of Transportation Engineering, Polytechnic School of the University of São Paulo, Avenida Professor Almeida Prado, Travessa 2, 83-05508010 São Paulo, Brazil
*
Author to whom correspondence should be addressed.
Academic Editors: Rosa Ma Alsina-Pagès and Giovanni Zambon
Sensors 2021, 21(9), 3127; https://doi.org/10.3390/s21093127
Received: 31 March 2021 / Revised: 21 April 2021 / Accepted: 28 April 2021 / Published: 30 April 2021
Road networks are monitored to evaluate their decay level and the performances regarding ride comfort, vehicle rolling noise, fuel consumption, etc. In this study, a novel inertial sensor-based system is proposed using a low-cost inertial measurement unit (IMU) and a global positioning system (GPS) module, which are connected to a Raspberry Pi Zero W board and embedded inside a vehicle to indirectly monitor the road condition. To assess the level of pavement decay, the comfort index awz defined by the ISO 2631 standard was used. Considering 21 km of roads with different levels of pavement decay, validation measurements were performed using the novel sensor, a high performance inertial based navigation sensor, and a road surface profiler. Therefore, comparisons between awz determined with accelerations measured on the two different inertial sensors are made; in addition, also correlations between awz, and typical pavement indicators such as international roughness index, and ride number were also performed. The results showed very good correlations between the awz values calculated with the two inertial devices (R2 = 0.98). In addition, the correlations between awz values and the typical pavement indices showed promising results (R2 = 0.83–0.90). The proposed sensor may be assumed as a reliable and easy-to-install method to assess the pavement conditions in urban road networks, since the use of traditional systems is difficult and/or expensive. View Full-Text
Keywords: pavement monitoring; inertial measurement unit; urban road; international roughness index; ride number; ride comfort pavement monitoring; inertial measurement unit; urban road; international roughness index; ride number; ride comfort
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MDPI and ACS Style

Loprencipe, G.; de Almeida Filho, F.G.V.; de Oliveira, R.H.; Bruno, S. Validation of a Low-Cost Pavement Monitoring Inertial-Based System for Urban Road Networks. Sensors 2021, 21, 3127. https://doi.org/10.3390/s21093127

AMA Style

Loprencipe G, de Almeida Filho FGV, de Oliveira RH, Bruno S. Validation of a Low-Cost Pavement Monitoring Inertial-Based System for Urban Road Networks. Sensors. 2021; 21(9):3127. https://doi.org/10.3390/s21093127

Chicago/Turabian Style

Loprencipe, Giuseppe, Flavio G.V. de Almeida Filho, Rafael H. de Oliveira, and Salvatore Bruno. 2021. "Validation of a Low-Cost Pavement Monitoring Inertial-Based System for Urban Road Networks" Sensors 21, no. 9: 3127. https://doi.org/10.3390/s21093127

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