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FDTD Simulation of the GPR Signal for Preventing the Risk of Accidents due to Pavement Damages

FDTD Simulation of the GPR Signal for Preventing the Risk of Accidents due to Pavement Damages

Fabio Tosti, Andrea Umiliaco
Copyright: © 2014 |Volume: 6 |Issue: 1 |Pages: 9
ISSN: 1941-8663|EISSN: 1941-8671|EISBN13: 9781466655171|DOI: 10.4018/ijitn.2014010101
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MLA

Tosti, Fabio, and Andrea Umiliaco. "FDTD Simulation of the GPR Signal for Preventing the Risk of Accidents due to Pavement Damages." IJITN vol.6, no.1 2014: pp.1-9. http://doi.org/10.4018/ijitn.2014010101

APA

Tosti, F. & Umiliaco, A. (2014). FDTD Simulation of the GPR Signal for Preventing the Risk of Accidents due to Pavement Damages. International Journal of Interdisciplinary Telecommunications and Networking (IJITN), 6(1), 1-9. http://doi.org/10.4018/ijitn.2014010101

Chicago

Tosti, Fabio, and Andrea Umiliaco. "FDTD Simulation of the GPR Signal for Preventing the Risk of Accidents due to Pavement Damages," International Journal of Interdisciplinary Telecommunications and Networking (IJITN) 6, no.1: 1-9. http://doi.org/10.4018/ijitn.2014010101

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Abstract

It is well known that road safety issues are closely dependent on both pavement structural damages and surface unevenness, whose occurrence is often related to ineffective pavement asset management. The evaluation of road pavement operability is traditionally carried out through distress identification manuals on the basis of standardized comprehensive indexes, as a result of visual inspections or measurements, wherein the failure causes can be partially detected. In this regard, ground-penetrating radar (GPR) has proven to be over the past decades an effective and efficient technique to enable better management of pavement assets and better diagnosis of the causes of pavement failures. In this study, one of the main causes (i.e. subgrade failures) of surface damage is analyzed through finite-difference time-domain (FDTD) simulation of the GPR signal. The GprMax 2D numerical simulator for GPR is used on three different types of flexible pavement to retrieve the numerical solution of Maxwell's equations in the time domain. Results show the high potential of GPR in detecting the causes of such damage.

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